Did you know that hens and chicks plants, known for their rosette-shaped foliage and resilience, can thrive in the most unlikely of places, turning rocky terrains into vibrant landscapes? These charming succulents are not only visually striking but also incredibly low-maintenance, making them the perfect choice for gardeners looking to create an eye-catching rock garden. With their ability to withstand drought and poor soil conditions, hens and chicks plants offer a sustainable solution for those wishing to enhance their outdoor spaces while minimizing water usage. As gardening trends shift towards eco-friendly practices, understanding how to design a rock garden featuring these delightful succulents is more relevant than ever.
In this article, we will explore the art of arranging hens and chicks plants within a rock garden setting, revealing aesthetic combinations that will captivate the eye and ignite your creativity. You’ll discover practical tips on selecting companion plants that complement the unique textures and colors of hens and chicks, creating a harmonious and thriving ecosystem. From layering techniques to strategic placements, we’ll provide valuable insights that will empower you to transform your garden into a breathtaking sanctuary. So, if you’re ready to unleash your inner landscape designer and embrace the beauty of nature, keep reading to uncover the secrets of a stunning rock garden!
Understanding Hens and Chicks Plants
What Are Hens and Chicks Plants?
Hens and chicks plants, scientifically known as Sempervivum and Echeveria, are a fascinating group of succulent plants that have captured the hearts of gardeners worldwide, particularly in New Zealand. These hardy perennials are renowned for their unique rosette shapes, which can vary significantly in size, color, and texture. Hens and chicks plants are characterized by their ability to produce offsets or “chicks” around a central “hen,” creating an attractive cluster that can spread and fill in gaps in your rock garden.
The scientific classification of hens and chicks places them within the Crassulaceae family, which is known for its succulent plants. This family includes a variety of species that thrive in arid conditions, making them ideal for rock gardens where water retention may be limited. The Sempervivum genus includes numerous species, each with distinct characteristics, while Echeveria offers a diverse range of colors and forms, from vibrant greens to deep purples and blues.
Propagation of hens and chicks plants is a straightforward process, primarily achieved through offsets. When the “chicks” grow large enough, they can be gently separated from the mother plant and replanted elsewhere in your garden or in containers. This ease of propagation makes them an excellent choice for gardeners looking to expand their collection without significant investment or effort.
Benefits of Hens and Chicks in Rock Gardens
Incorporating hens and chicks plants into your rock garden offers a multitude of benefits. Firstly, their exceptional drought tolerance is a significant advantage, especially for gardeners in New Zealand who may face dry spells. Hens and chicks plants store water in their fleshy leaves, allowing them to thrive in conditions where other plants might struggle. This characteristic not only reduces the need for frequent watering but also makes them a sustainable choice for eco-conscious gardeners.
Additionally, the aesthetic appeal of hens and chicks plants cannot be overstated. With a vast array of colors, from vibrant greens to stunning purples and reds, these plants can create a visually captivating landscape. Their unique textures and shapes add depth and interest to rock gardens, making them a focal point. For instance, the rosettes of Sempervivum can contrast beautifully with the rugged surfaces of rocks and gravel, while Echeveria varieties can introduce soft, flowing forms that soften the harsh lines of stone.
Beyond their visual allure, hens and chicks plants are also relatively low maintenance. Once established, they require minimal care, making them perfect for busy gardeners or those new to gardening. Their resilience against pests and diseases further enhances their appeal, allowing gardeners to enjoy a thriving rock garden with less effort.
Ideal Growing Conditions in New Zealand
Understanding the ideal growing conditions for hens and chicks plants is crucial for successful cultivation, particularly in the diverse climate zones of New Zealand. The country experiences a range of climatic conditions, from the temperate zones of the North Island to the cooler, alpine regions of the South Island. Fortunately, hens and chicks plants are adaptable and can thrive in various environments, provided their basic needs are met.
Firstly, hens and chicks plants prefer well-draining soil that mimics their natural rocky habitats. Sandy or gravelly soils are ideal, as they allow excess water to drain away quickly, preventing root rot. It is essential to avoid heavy clay soils that retain moisture, as this can lead to detrimental effects on the health of the plants.
In terms of pH levels, hens and chicks plants thrive in slightly acidic to neutral soil, with a pH range of 6.0 to 7.0. Conducting a soil test can provide valuable insights into your garden’s pH and help you make necessary adjustments to create the perfect environment for these succulents.
Sunlight is another critical factor to consider when growing hens and chicks plants. These hardy succulents prefer full sun to partial shade, ideally receiving at least six hours of direct sunlight daily. In hotter regions, some afternoon shade can help prevent leaf scorching. When planning your rock garden, select a location that maximizes sun exposure while considering the surrounding landscape to ensure your hens and chicks plants flourish.
In conclusion, understanding the characteristics and requirements of hens and chicks plants is essential for creating a thriving rock garden. Their unique growth habits, aesthetic appeal, and adaptability to New Zealand’s varied climates make them an excellent choice for gardeners seeking to design visually stunning and low-maintenance landscapes. By providing the right conditions and incorporating these resilient plants into your rock garden, you can enjoy a vibrant display of color and texture that enhances your outdoor space.
Designing Your Rock Garden
Planning Your Rock Garden Layout
Creating an inviting rock garden starts with careful planning. When considering where to place your rock garden, it’s essential to choose a location that receives adequate sunlight. Hens and chicks plants thrive in full sun, requiring at least six hours of direct sunlight each day. This exposure not only promotes healthy growth but also enhances their vibrant colors.
Additionally, drainage is a critical factor in your rock garden’s success. Hens and chicks plants are succulents and do not tolerate standing water. Look for areas with well-draining soil or consider elevating your garden with rocks to improve drainage. If your chosen site has heavy clay soil, you might need to amend it with sand or gravel to create a more suitable environment for your plants.
Once you’ve identified the ideal location, sketching out your rock garden design can be immensely helpful. Use graph paper or a garden design app to create a scaled layout. This allows you to visualize the arrangement of rocks, plants, and pathways. Consider the size and shape of your rock garden; a smaller, intimate space might be best suited for a cozy collection of hens and chicks plants, while a larger area could accommodate a more diverse range of companion plants.
When planning your layout, think about the flow of the garden. Incorporate pathways or stepping stones to allow easy access for maintenance and enjoyment. This design will not only enhance the aesthetic appeal but also make it more functional.
Choosing Rocks and Materials
The choice of rocks and materials is crucial for creating a visually appealing rock garden. Natural stones, such as granite, limestone, or river rocks, can provide a beautiful backdrop for your hens and chicks plants. The colors and textures of the stones should complement the vibrant hues of the plants. For example, light-colored stones can contrast nicely with the rich greens and reds of hens and chicks, creating a striking visual effect.
When selecting rocks, consider varying their sizes and shapes. Larger boulders can serve as focal points, while smaller stones can be used to fill gaps and create a natural look. Additionally, layering different types of rocks can add depth and interest to your garden. For instance, you might place flat stones horizontally to create a pathway while using larger, upright stones to form a backdrop.
Incorporating gravel, sand, or mulch into your design can enhance drainage and reduce weed growth. A layer of gravel around your hens and chicks plants not only looks attractive but also helps retain moisture in the soil while preventing rot. Choose materials that align with the overall aesthetic you wish to achieve. For a more rustic feel, opt for natural stone and gravel; for a modern look, consider polished pebbles or decorative stones.
Aesthetic Arrangements of Hens and Chicks
The arrangement of hens and chicks plants within your rock garden can significantly impact its overall aesthetic. Grouping plants by color and size creates a harmonious look. For example, you can plant a cluster of deep red hens and chicks at the forefront, surrounded by lighter green varieties. This not only highlights the unique characteristics of each plant but also draws the eye throughout the garden.
When arranging your plants, consider layering them to create visual interest. Taller plants can be placed at the back or center of the garden, with shorter varieties in the front. This layering effect allows each plant to be appreciated without overshadowing others. Additionally, varying the heights of your hens and chicks plants can add dimension to your rock garden.
Another effective strategy is to create patterns with your plants. For instance, you might alternate between different colors or textures in a repeating pattern, which can create a rhythmic flow throughout the garden. This technique works particularly well in larger rock gardens, where the repetition can lead to a cohesive design.
Incorporating companion plants can also enhance the aesthetic appeal of your rock garden. Choose plants with contrasting textures or colors to complement your hens and chicks. For example, the delicate flowers of creeping thyme can provide a lovely contrast to the bold rosettes of hens and chicks plants.
Consider seasonal variations in your design. While hens and chicks plants remain attractive year-round, incorporating companion plants that bloom at different times can add interest throughout the seasons. For instance, spring-blooming plants like alpine phlox can provide a burst of color when your hens and chicks are just beginning to emerge from dormancy.
Finally, don’t hesitate to experiment with your arrangements. Gardening is a creative process, and your rock garden should reflect your personal style. Take the time to step back and assess your design, making adjustments as needed until you achieve a look that feels right for you.
Container Gardening with Hens and Chicks
In addition to traditional rock garden designs, container gardening offers a versatile way to incorporate hens and chicks plants into your landscape. Containers allow you to create stunning displays of these unique succulents, whether on a patio, balcony, or as part of your garden beds.
When choosing containers, opt for those with excellent drainage. Terracotta pots, for example, are an excellent choice as they allow moisture to evaporate, helping prevent root rot in your hens and chicks plants. You can also use decorative stones or gravel at the bottom of the container to enhance drainage further.
Arranging hens and chicks plants in containers can be an artistic endeavor. Consider mixing different varieties for a dynamic look. You can create a tiered effect by placing taller hens and chicks in the center and surrounding them with shorter varieties. This arrangement not only looks appealing but also allows each plant to receive adequate sunlight.
Container gardening also provides the flexibility to move your arrangements around, allowing you to find the perfect spot where they can thrive. This adaptability is particularly beneficial in New Zealand’s variable climate, where certain areas may receive more sunlight or protection from wind.
Incorporating companion plants into your containers can further enhance their beauty. Consider adding trailing plants, such as string of pearls or creeping thyme, which can spill over the edges of your containers, creating a cascading effect that complements the rosettes of hens and chicks.
Ultimately, whether you choose to design a traditional rock garden or explore the world of container gardening, the key is to embrace the unique characteristics of hens and chicks plants. Their resilience, stunning colors, and fascinating textures make them an ideal choice for any gardener looking to create a visually captivating landscape.
Companion Plants for Hens and Chicks
Best Companion Plants for Rock Gardens
When designing a rock garden featuring hens and chicks plants, it’s essential to consider the companion plants that will thrive alongside them. Companion planting enhances the overall aesthetic of your garden while ensuring that all plants coexist harmoniously. Here are some of the best companion plants that complement hens and chicks:
1. Sedums: Sedums, or stonecrops, are an excellent choice for rock gardens. They share similar growing conditions with hens and chicks plants, thriving in well-drained soil and full sun. With various shapes, sizes, and colors, sedums can add depth and diversity to your garden. Varieties like Sedum spurium and Sedum album are particularly popular for their vibrant foliage and small, star-shaped flowers.
2. Thyme: Thyme is a fragrant herb that works beautifully in rock gardens. Its low-growing habit makes it an ideal ground cover, helping to suppress weeds while providing a lush green carpet beneath your hens and chicks plants. The added bonus is that thyme blooms with tiny purple flowers in summer, attracting pollinators and adding seasonal interest to your garden.
3. Creeping Phlox: Known for its stunning blooms in spring, creeping phlox is a fantastic companion plant for hens and chicks. The vibrant flowers create a striking contrast against the rosette shapes of the hens and chicks plants. This perennial thrives in well-drained soil and full sun, making it an excellent choice for your rock garden.
4. Alyssum: Sweet alyssum is another lovely companion plant that adds a delicate touch to rock gardens. Its small white or purple flowers provide a soft contrast to the bold shapes of hens and chicks plants. Alyssum is a low-growing plant that thrives in sunny locations, making it a perfect addition to your garden design.
5. Ornamental Grasses: Incorporating ornamental grasses can elevate the aesthetic of your rock garden. Grasses like blue fescue or feather reed grass provide a lovely texture contrast to the dense rosettes of hens and chicks plants. They also add movement to the garden, swaying gently in the breeze and creating a dynamic visual appeal.
Creating Contrast and Harmony
When designing your rock garden, achieving a balance of contrast and harmony is key to creating a visually appealing landscape. Here are some tips on how to combine textures, colors, and heights effectively:
1. Color Coordination: Consider the color palette of your hens and chicks plants. With their diverse range of greens, reds, and purples, you can create striking combinations with flowering companions. For example, pairing vibrant red hens and chicks with the soft lavender hues of creeping phlox can create a stunning focal point in your garden.
2. Textural Variation: The unique textures of different plants can enhance the visual interest of your rock garden. Hens and chicks plants have a fleshy, succulent texture, while ornamental grasses offer a feathery appearance. Mixing these textures creates a multi-dimensional effect that draws the eye and keeps the garden engaging.
3. Seasonal Interest: Choose companion plants that provide year-round beauty. While hens and chicks plants offer a strong presence in the summer, adding flowering companions like thyme or alyssum can extend the visual appeal into the spring. Consider also including plants that provide fall color or winter interest, such as ornamental grasses that maintain their structure even in colder months.
4. Layering and Height Variation: Utilize height differences to create a dynamic garden layout. Place taller companion plants, such as ornamental grasses, towards the back or center of the garden bed, while keeping shorter plants like thyme and sedums in the foreground. This layering technique not only adds depth but also ensures that all plants are visible and appreciated.
5. Pathways and Borders: Incorporate pathways or borders made from gravel or stones to guide the eye through the garden. This can create a sense of structure while allowing the hens and chicks plants and their companions to shine. Use lower-growing plants along the edges of pathways to soften the transition between the garden and the walking area.
Native New Zealand Plants to Consider
Incorporating native New Zealand plants into your rock garden can enhance biodiversity, support local wildlife, and reduce maintenance needs. Here are some native species that work well alongside hens and chicks plants:
1. Raoulia (Vegetable Sheep): This unique ground cover is an excellent choice for rock gardens. Raoulia forms dense mats of foliage, providing a lush green base that complements the rosettes of hens and chicks plants. It thrives in dry, rocky conditions, making it an ideal companion.
2. Coprosma: Known for its glossy leaves and vibrant colors, coprosma is a versatile native plant that can add interest to your rock garden. Varieties like Coprosma repens can be used as low-growing ground covers, while taller varieties can serve as focal points. Their ability to thrive in various soil types makes them a great addition.
3. Dichondra: Dichondra is a trailing plant that can cascade beautifully over rocks and stones. Its rounded leaves provide a lovely contrast to the sharp lines of hens and chicks plants. This native plant is drought-tolerant and can thrive in sunny locations, making it an excellent choice for a low-maintenance garden.
4. Muehlenbeckia: Known as wire vine, muehlenbeckia can add a unique texture to your rock garden. This hardy plant can grow as a ground cover or be trained to climb on rocks, providing versatility in your design. Its delicate foliage will complement the bold shapes of hens and chicks plants beautifully.
5. Kowhai: For a stunning seasonal display, consider adding a kowhai tree or shrub. Its bright yellow flowers in spring attract native birds, providing both beauty and ecological benefits. While not a ground cover, its height can create a lovely backdrop for your rock garden.
By thoughtfully selecting companion plants, you can create a vibrant rock garden that showcases the beauty of hens and chicks plants while enhancing the overall design. The combination of textures, colors, and native species will not only create an aesthetically pleasing landscape but also contribute to a sustainable and low-maintenance garden that thrives in New Zealand’s unique climate.
Maintenance Tips for Your Rock Garden
Creating a stunning rock garden with hens and chicks plants is an ongoing journey that requires attention to detail and a bit of care. While these hardy plants are known for their resilience and low maintenance needs, incorporating effective maintenance practices can enhance their beauty and longevity. This section will delve into essential maintenance tips tailored for New Zealand’s unique climate, ensuring your rock garden remains a vibrant and thriving space.
Watering and Fertilization
One of the fundamental aspects of maintaining a rock garden featuring hens and chicks plants is understanding their watering needs. These plants are drought-tolerant; however, they still require adequate moisture during their growing season, particularly in New Zealand’s warmer months.
For optimal growth, water your hens and chicks plants deeply but infrequently. This encourages deeper root growth, allowing the plants to access moisture from the soil more effectively. A general rule of thumb is to water them every two weeks during the growing season, ensuring that the soil dries out between waterings.
In terms of fertilization, hens and chicks plants thrive in nutrient-poor soils, so over-fertilizing can lead to leggy growth and diminished health. Instead, consider using a balanced, organic fertilizer in early spring, diluted to half strength. This will provide the necessary nutrients without overwhelming the plants. Look for organic options like fish emulsion or seaweed extract, which can support healthy growth while being gentle on the environment.
Pest Control and Disease Management
Although hens and chicks plants are relatively pest-resistant, they can still fall victim to common pests such as aphids, mealybugs, and spider mites. Regularly inspect your plants for signs of infestation, such as discolored leaves or webbing. If you notice any pests, treat them promptly with a gentle insecticidal soap or neem oil, both of which are effective and environmentally friendly options.
Preventative measures are critical in maintaining the health of your rock garden. Ensure that your hens and chicks plants are not overcrowded, as good air circulation can help prevent fungal diseases and rot. Additionally, avoid overhead watering, as this can lead to moisture accumulation on the leaves, fostering disease development.
In New Zealand, the humid summer conditions can sometimes lead to rot, particularly if the plants are in poorly draining soil. To combat this, ensure your rock garden has excellent drainage by incorporating gravel or sand into the soil mix. If you notice any signs of rot, such as mushy leaves, remove the affected plants immediately to prevent the spread to healthy ones.
Seasonal Care and Pruning
Maintaining a rock garden with hens and chicks plants involves seasonal care that aligns with New Zealand’s climate. As the seasons change, so do the needs of your garden.
In spring, it’s the perfect time to assess the health of your hens and chicks plants. Remove any dead or damaged leaves to promote new growth. This is also the ideal time to divide any overcrowded rosettes, as hens and chicks plants tend to produce offsets or “chicks” that can be separated and replanted. Doing so not only keeps your garden looking tidy but also encourages the plants to thrive.
Summer is when your hens and chicks plants will be in full growth mode. During this time, continue to monitor moisture levels and ensure proper drainage. If you notice any plants that have become too leggy or sparse, consider pruning them back to encourage bushier growth.
As autumn approaches, prepare your rock garden for the cooler months. This includes clearing away any debris that may have accumulated, such as fallen leaves or dead plant material, which can harbor pests and diseases. Additionally, if you live in an area prone to frost, consider covering your rock garden with a protective layer of mulch to insulate the soil and protect the roots of your hens and chicks plants.
In winter, while hens and chicks plants are dormant, it’s essential to check for any signs of rot or disease. If you notice any issues, take corrective action immediately. While these plants are hardy, excessive moisture in winter can lead to significant problems.
Container Gardening with Hens and Chicks
In addition to traditional rock gardens, container gardening offers a versatile approach to showcasing hens and chicks plants. Container gardening allows you to create a portable rock garden that can be moved to optimize sunlight exposure or to enhance different areas of your landscape.
When designing a container garden with hens and chicks plants, select a pot with good drainage holes to prevent water accumulation. Choose a well-draining soil mix, ideally a combination of potting soil, sand, and gravel, to mimic the conditions of a rock garden.
In terms of aesthetics, consider mixing different varieties of hens and chicks plants to create a visually striking arrangement. The varying colors and textures can create a stunning focal point on patios, balconies, or garden pathways.
Regular maintenance for container gardens involves more frequent watering, as pots can dry out faster than garden beds. Monitor moisture levels closely, especially during the hot summer months. Fertilization should follow the same guidelines as in-ground gardens, using organic options that promote healthy growth without overwhelming the plants.
Container gardening also allows for creative companion planting. Consider pairing your hens and chicks plants with other drought-tolerant species, such as sedums or ornamental grasses, to create a lush and diverse display. This combination not only enhances the visual appeal but also supports a healthy ecosystem within your container garden.
Final Thoughts on Maintenance
Maintaining a rock garden with hens and chicks plants is a rewarding experience that enhances the beauty of your outdoor space. By understanding their specific needs for watering, pest control, and seasonal care, you can ensure that your garden remains vibrant and healthy throughout the year.
Incorporating container gardening can further diversify your gardening experience, allowing you to explore creative arrangements and plant combinations. Whether in traditional beds or containers, hens and chicks plants offer a resilient and stunning option for rock gardens in New Zealand.
With the right maintenance practices in place, your rock garden can become a thriving sanctuary of color and texture, showcasing the unique beauty of hens and chicks plants and their companion species. Embrace the joy of gardening, and enjoy the satisfaction of nurturing your rock garden into a flourishing oasis.
Frequently Asked Questions (FAQs)
What are hens and chicks plants?
Hens and chicks plants, scientifically known as Sempervivum, are succulent perennials that are loved for their rosette-shaped foliage and hardiness. They thrive in various conditions, making them perfect for rock gardens. These plants produce “chicks,” or offsets, around the “hen,” which is the mature plant, creating a visually appealing cluster. Their diverse colors and textures add depth to any garden design, and they require minimal maintenance, making them an excellent choice for both novice and experienced gardeners.
How can I arrange hens and chicks in my rock garden?
When designing a rock garden with hens and chicks, aim for natural-looking arrangements that mimic their growth patterns. Start by clustering different varieties based on their sizes and colors, placing taller varieties at the back and shorter ones in the front. Consider using rocks and boulders as natural dividers or backdrops to highlight the plants. Spacing the plants adequately will allow them to spread and form a beautiful tapestry over time, creating a harmonious and inviting landscape.
What companion plants work well with hens and chicks?
Companion plants that thrive in similar conditions as hens and chicks can enhance the overall aesthetic of your rock garden. Consider using other succulents like sedums or echeverias, which complement the texture and color of hens and chicks. Drought-tolerant perennials such as lavender, thyme, or ornamental grasses can also create a lovely contrast and provide a varied landscape. Ensure that all companion plants have similar water and sunlight requirements to maintain a healthy garden ecosystem.
What is the best soil for hens and chicks in a rock garden?
Hens and chicks prefer well-draining soil that mimics their natural habitat of rocky, mountainous regions. A mix of potting soil and coarse materials such as sand, gravel, or perlite is ideal. This combination allows for proper drainage while providing enough nutrients for growth. It’s essential to avoid heavy clay soils that retain water, as this can lead to root rot. Incorporating rocks and pebbles into the planting area can also enhance drainage and create an attractive landscape.
How much sunlight do hens and chicks need?
Hens and chicks thrive in full sun to partial shade, requiring at least six hours of sunlight per day for optimal growth. While they can tolerate some shade, too much can lead to stretched, leggy growth and reduced flowering. When designing your rock garden, consider the sun exposure of different areas throughout the day and position your hens and chicks accordingly to ensure they receive adequate light.
How do I care for hens and chicks in my rock garden?
Caring for hens and chicks is relatively easy, as these plants are low-maintenance. Water them sparingly, allowing the soil to dry out between waterings to prevent overwatering. Fertilizing is typically unnecessary, but a light application of a balanced fertilizer in the spring can promote growth. In the fall, remove any dead leaves to maintain cleanliness and prevent pests. Additionally, if the plants become overcrowded, you can easily propagate them by separating the chicks and replanting them in new areas of your garden.
Can hens and chicks survive winter conditions?
Yes, hens and chicks are hardy plants that can survive winter conditions, making them ideal for rock gardens in various climates. They can withstand freezing temperatures and even snow, as long as the soil drains well and does not remain soggy. In regions with harsh winters, a layer of mulch can provide additional protection, helping to insulate the roots and prevent heaving due to freeze-thaw cycles. As spring arrives, simply clean up any debris and enjoy their vibrant growth.
Are hens and chicks deer resistant?
Hens and chicks are generally considered deer resistant due to their tough, spiky leaves and low moisture content. Deer tend to avoid eating these plants, making them a suitable choice for gardens in areas with high deer populations. However, it’s important to note that no plant is entirely deer-proof, and in times of food scarcity, deer may nibble on them. To further deter deer, consider incorporating aromatic companion plants that they dislike, such as lavender or sage.
References
- Designing a Rock Garden with Hens and Chicks – A guide on creating beautiful rock gardens featuring hens and chicks, including design tips and plant suggestions.
- Rock Garden Ideas – An overview of rock garden designs, including plants that thrive in rocky conditions, with a focus on aesthetics.
- How to Create a Rock Garden – Step-by-step instructions for designing a rock garden, including the best companion plants for hens and chicks.
- Rock Garden Ideas and Tips – Inspirational ideas for rock gardens, highlighting various plants, including hens and chicks, that complement the design.
- How to Create a Rock Garden – A comprehensive guide on selecting the right plants and arranging them aesthetically in a rock garden.
- Designing a Rock Garden – Expert advice on creating a visually appealing rock garden with a focus on plant selection and arrangement.
- Hens and Chicks in the Rock Garden – Information on the care and aesthetic use of hens and chicks in rock gardens, including companion plant ideas.