Katsura Tree Cercidiphyllum japonicum 'Boyd's Dwarf'
ABOUT
Boyd's Dwarf Katsura is a unique and ornamental variety of plant that is known for its distinct foliage and appealing aesthetics. The leaves of this plant display a heart-shaped form, presenting a delicate and soft appearance. During spring, the fresh leaves emerge with a reddish-purple cast, gradually transitioning to a bluish-green hue as they mature. In the fall, the foliage undergoes another transformation, exhibiting a stunning display of yellow, orange, and apricot colors, which contribute to the plant's exceptional ornamental interest. The leaves are positioned in a way that creates a dense and layered texture, contributing to the lush and full appearance of the plant. The bark has a shaggy texture that adds an interesting visual element to the overall form. An added sensory feature is the subtle scent the leaves produce, often compared to the smell of freshly baked cookies or caramel, especially noticeable when the leaves are crushed or when they fall in autumn. This delightful fragrance adds a unique characteristic to Boyd's Dwarf Katsura that is appreciated in many gardens. Overall, the appearance of this plant is characterized by its charming foliage, attractive seasonal color changes, and the pleasant aroma it emits, making it a favored choice among garden enthusiasts.
About this plant
- Names
Family
Cercidiphyllaceae
Synonyms
Boyd's Dwarf Katsura, Dwarf Katsura Tree
Common names
Cercidiphyllum japonicum 'Boyd's Dwarf'.
- Toxicity
To humans
Katsura tree, specifically the 'Boyd's Dwarf' variety, is not known to be toxic to humans. There are no well-documented symptoms of poisoning from the katsura tree, as it is not considered a poisonous plant. Thus, ingesting parts of the plant typically does not pose serious health risks.
To pets
Katsura tree, including the 'Boyd's Dwarf' cultivar, is not reported to be toxic to pets such as dogs and cats. There are no recognized symptoms of poisoning since it is generally considered safe. Consequently, the ingestion of parts of the katsura tree should not be expected to cause significant health issues for pets.
- Characteristics
Life cycle
Perennials
Foliage type
Deciduous
Color of leaves
Varies
Height
4-5 feet [1.2-1.5 meters]
Spread
4-6 feet [1.2-1.8 meters]
Plant type
Tree
Hardiness zones
4
Native area
Japan
Benefits
- General Benefits
- Compact Size: Ideal for small gardens or limited spaces.
- Aesthetic Appeal: Provides visual interest with heart-shaped leaves and attractive fall colors.
- Low Maintenance: Requires minimal pruning and is relatively carefree once established.
- Adaptable: Tolerates a variety of soil types, though it prefers moist, well-drained conditions.
- Seasonal Interest: Offers spring blossoms and dramatic autumn foliage transitions.
- Wildlife Attraction: Can attract birds and beneficial insects to the garden.
- Cold Hardy: Can withstand cold temperatures, making it suitable for many climates.
- Medical Properties
This plant is not used for medical purposes.
- Air-purifying Qualities
This plant is not specifically known for air purifying qualities.
- Other Uses
- Katsura 'Boyd's Dwarf' can be used in bonsai cultivation due to its attractive foliage and manageable size, offering enthusiasts a unique variety to work with.
- The fallen leaves of Katsura decompose into a mulch that can enrich soil nutrients, making it useful in garden beds as a natural soil amendment.
- The wood of mature Katsura trees may be used in fine woodworking for crafting small objects such as turned bowls or decorative items, appreciated for its grain and workability.
- Katsura 'Boyd's Dwarf', with its compact form, can serve as a living sculpture in a garden, adding aesthetic value without the need for extensive pruning or sculpting.
- The tree can be planted near streams or water features where its reflective foliage enhances the tranquility and beauty of the water elements.
- Katsura 'Boyd's Dwarf' can be used as a natural dye plant, with components of the leaves and bark providing color for fabrics or art materials.
- In a sensory garden, the tree's sweet-smelling leaves (reminiscent of burnt sugar or cotton candy) provide a unique olfactory experience during the fall.
- As a small specimen tree, Katsura 'Boyd's Dwarf' can serve as an educational tool in schools to teach children about deciduous trees and seasonal changes.
- The tree can act as a natural sound barrier when planted in groups, helping to reduce noise pollution in urban gardens.
- Katsura 'Boyd's Dwarf' can be used in thematic gardens, such as Japanese or Zen gardens, to contribute to the overall ambiance and thematic consistency.
Interesting Facts
- Feng Shui
The Katsura tree is not used in Feng Shui practice.
- Zodiac Sign Compitability
The Katsura tree is not used in astrology practice.
- Plant Symbolism
- Transient Beauty: The Katsura tree, which 'Boyd's Dwarf' is a cultivar of, is known for its heart-shaped leaves that change from a lovely green to vibrant yellow and orange shades in the fall. This symbolizes the fleeting nature of beauty and reminds us to appreciate the present.
- Renewal: As the Katsura tree's leaves fall, they release a sweet scent reminiscent of burnt sugar or cotton candy. This characteristic symbolizes renewal and the idea that ending cycles pave the way for new beginnings, much as the leaves decompose and enrich the soil for future growth.
- Nostalgia: The unique aroma of the Katsura tree’s leaves in the fall can evoke nostalgia, symbolizing the power of memories and the importance of the past in shaping our experiences and lives.
- Grace: The Katsura tree's elegant shape and delicate foliage represent grace and poise, reminding us to carry ourselves with dignity and to move through life's challenges with ease.
- Water
Katsura tree 'Boyd's Dwarf' enjoys consistent moisture and should be watered deeply once a week, providing 1 to 1.5 gallons of water each time during the growing season. During the hotter months, watch the tree closely; if the leaves show signs of wilting or the ground feels dry to the touch, a supplemental watering may be necessary. In winter, reduce watering to match the decrease in the tree's growth and evaporation rates, but don't let the root ball dry out entirely. Avoid overhead watering to prevent leaf diseases and instead focus water at the base of the tree to reach the root zone effectively.
- Light
Katsura tree 'Boyd's Dwarf' prefers a location with full sun to part shade. It thrives best in spots that receive morning sunlight and are protected from the intense afternoon heat. However, in hotter climates, it benefits from light shade during the peak sun hours to prevent scorching of the delicate foliage.
- Temperature
Katsura tree 'Boyd's Dwarf' can survive in a range of temperatures, but it grows best in areas where the average temperature is between 60°F to 75°F. It is hardy to USDA zones 4 through 8, which means it can withstand minimum winter temperatures down to -20°F to -30°F. Avoid placing it in areas where temperatures can rise above 90°F for prolonged periods as high heat can cause stress to the plant.
- Pruning
Pruning Katsura tree 'Boyd's Dwarf' is mostly aimed at maintaining its natural shape, removing any dead or damaged wood, and encouraging healthy growth. This variety typically requires less pruning due to its dwarf habit. The best time to prune is in late winter or early spring before new growth starts, but after the coldest weather has passed. Light pruning can also be done in summer if necessary to correct any unwanted growth.
- Cleaning
As needed
- Soil
For Katsura Tree, a well-draining, moist soil mix is recommended with a pH ranging from 5.0 to 7.5. Incorporate organic matter like leaf mold or compost to enrich the soil.
- Repotting
Katsura Trees, being larger landscape plants, usually don't require repotting. Instead, they are planted and may be transplanted as needed for landscaping purposes.
- Humidity & Misting
Katsura Tree thrives with average to high humidity levels, but as outdoor plants, they adapt to the local humidity conditions naturally.
- Suitable locations
Indoor
Katsura Tree is not suitable for indoor growing due to its size.
Outdoor
Plant in moist, well-drained soil and full sun to partial shade.
Hardiness zone
4-8 USDA
- Life cycle
The life of a Boyd's Dwarf Katsura Tree (Cercidiphyllum japonicum 'Boyd's Dwarf') begins with seed germination, prompted by warmth and moisture in spring, after a necessary period of cold stratification. Emerging seedlings develop into juvenile plants characterized by rapid growth and the development of the plant's distinctive heart-shaped leaves. As the plant matures, it enters a more stable phase of annual growth, where it produces new foliage each spring, and its growth rate slows compared to the juvenile phase. During its reproductive phase, the Boyd's Dwarf Katsura Tree may produce small, inconspicuous flowers, although it is primarily grown for its foliage. As the tree ages, it attains its maximum dwarf size, which is smaller compared to the species' typical varieties, and displays graceful autumn colors of yellow, orange, and red before leaf fall. Finally, the tree reaches senescence, where growth slows significantly, and it may become more susceptible to environmental stresses or disease before eventually dying.
- Propogation
Propogation time
Spring to Summer
The Cercidiphyllum japonicum 'Boyd's Dwarf', commonly known as Katsura Tree, is typically propagated by grafting. This method involves taking a scion or a young shoot from a desirable parent plant and attaching it to a rootstock that has been cut to accommodate the scion. The grafting is usually done in late winter or early spring before new growth starts. The cut should be made at a diagonal in the rootstock and the scion should be trimmed to match this angle, ensuring that the cambium layers (the growth tissue just under the bark) of both are aligned. The two pieces are then fitted together snugly and wrapped with grafting tape to hold them securely. This connection should be kept wrapped until the graft has taken, which may take a few weeks, but it is critical not to let the grafting tape girdle the growing stem. Grafting ensures that the specific growth habits and characteristics of 'Boyd's Dwarf' are reliably reproduced in the new trees.