Manchurian Catalpa Catalpa bungei Duclouxii Group
ABOUT
The common name for Catalpa bungei Duclouxii Group is Manchurian catalpa. This distinctive plant is known for its broad and heart-shaped leaves that can have an attractive, bold appearance, often with a bright to medium green color. In the spring and early summer, the Manchurian catalpa produces upright panicles of flowers. These blooms are typically bell-shaped, may appear in shades from white to light purple, and can feature yellow or brownish markings on the inside, which add to their ornamental appeal. As a deciduous tree, the Manchurian catalpa will lose its leaves in the fall, but before they drop, they may exhibit a range of autumnal colors, often turning shades of yellow. The bark of the plant is also of interest, with a texture that may be rough and textured, potentially furrowed, and with a color that is usually light gray to brown, providing winter interest when the leaves have fallen. Following the flowering period, the plant often produces bean-like seed pods. These pods can dangle from the branches, adding another element of visual interest to the Manchurian catalpa. The branching pattern is also a notable characteristic; the branches tend to spread widely, creating an attractive canopy which is especially apparent when the tree is leafed out in the warmer months.
About this plant
NamesFamily
Bignoniaceae.
Synonyms
Manchurian Catalpa, Chinese Catalpa, Bunge's Catalpa.
Common names
Catalpa bungei.
ToxicityTo humans
The most common common name for Catalpa bungei Duclouxii Group is the Manchurian catalpa. There is limited information on the toxicity of this specific plant to humans. However, in general, catalpa trees are not considered highly toxic to humans. While they may not be specifically known for causing severe poisoning, consumption of parts of the tree, such as the beans or seeds, could potentially cause mild stomach upset if ingested in large quantities. It is always advisable to exercise caution and avoid eating parts of ornamental plants not designated as food.
To pets
The most common common name for Catalpa bungei Duclouxii Group is the Manchurian catalpa. Similar to its effects on humans, the Manchurian catalpa is not widely recognized as a toxic plant to pets. While catalpa trees are generally considered to have low toxicity, ingestion of large quantities of the tree parts, such as leaves or seed pods, could potentially cause mild gastrointestinal upset in pets such as vomiting or diarrhea. As with any non-food plant, it is prudent to keep an eye on pets and prevent them from consuming plant material to avoid any potential issues.
CharacteristicsLife cycle
Perennials
Foliage type
Deciduous
Color of leaves
Green
Flower color
White
Height
20 feet (6 meters)
Spread
15 feet (4.5 meters)
Plant type
Tree
Hardiness zones
5
Native area
China
Benefits
General Benefits- Landscape Aesthetics: The Catalpa bungei, commonly known as the Manchurian catalpa, features broad, heart-shaped leaves and dense foliage, which can contribute to an aesthetically pleasing landscape design.
- Shade Provision: The Manchurian catalpa's broad canopy provides ample shade, which can improve human comfort in outdoor areas and reduce the need for air conditioning in nearby buildings.
- Habitat for Wildlife: This plant provides habitat for various species of birds and insects, supporting biodiversity.
- Drought Tolerance: Manchurian catalpa is known for being relatively drought-tolerant once established, which makes it suitable for landscapes in drier climates.
- Urban Tolerant: The species can withstand urban conditions like pollution and confined spaces, making it a practical choice for city landscaping.
- Ornamental Flowers: The Manchurian catalpa produces showy flowers, which enhance its decorative appeal.
- Seasonal Interest: With its large leaves that change color in autumn, the Manchurian catalpa offers seasonal interest throughout the year.
Medical PropertiesThis plant is not used for medical purposes.
Air-purifying QualitiesThis plant is not specifically known for air purifying qualities.
Other Uses- Catalpa bungei wood can be used in woodworking projects for its attractive grain and ease of working with hand tools.
- The tree's dense foliage can provide a sound barrier, making it useful for planting alongside noisy streets or highways.
- The large, heart-shaped leaves can be used in artistic and educational leaf casting projects to create detailed impressions.
- Because of its broad canopy, the tree is often planted in parks and large gardens for providing ample shade during hot summers.
- Catalpa bungei can be used as a windbreak in agricultural settings, offering protection for smaller plants or structures.
- The flowers can be used in amateur perfumery, where hobbyists may extract their fragrance for homemade perfumes.
- In regions where the tree is considered non-invasive, it can be used as a habitat plant for local wildlife, including birds and insects.
- Its rapid growth rate makes it a suitable species for use in reforestation or afforestation projects with non-native, ornamental character.
- The tree's durability in urban settings lends itself to street tree planting, where it can survive with minimal care once established.
- Catalpa bungei's interesting pod-like fruits can be used in dried floral arrangements or as part of natural decorative displays.
Interesting Facts
Feng ShuiThe Catalpa is not used in Feng Shui practice.
Zodiac Sign CompitabilityThe Catalpa is not used in astrology practice.
Plant Symbolism- Resilience - Catalpa bungei, also known as Manchurian Catalpa, is known for its resilience due to its strong wood and ability to withstand tough environmental conditions.
- Longevity - The tree often lives for many years, symbolizing long life and endurance.
- Protection - With its broad leaves, the Manchurian Catalpa provides ample shade, symbolizing shelter and protection.
- Beauty - Its showy flowers that bloom in the summertime are seen as a symbol of beauty and aesthetic pleasure.
WaterThe Manchurian catalpa should be watered deeply once a week, allowing the soil to dry out somewhat between waterings. This equates to approximately 1 to 1.5 inches of water weekly, which for mature trees can mean around 10-15 gallons depending on the size and the environmental conditions. During hot, dry spells, waterings should be more frequent as the plant will require more moisture to remain healthy. In the winter months, reduce watering as the tree will be dormant and won't need as much moisture. Overwatering can lead to root rot, so ensure that the soil has good drainage.
LightThe Manchurian catalpa thrives best in full sunlight but can also tolerate partial shade. For optimal growth, locate this tree in a spot where it will receive at least six hours of direct sunlight daily. The tree will do well in a variety of light conditions but less light may lead to a less dense canopy and fewer flowers.
TemperatureThe Manchurian catalpa is a hardy plant, capable of withstanding minimum temperatures down to around -20 degrees Fahrenheit. The optimal temperature for this tree to thrive is between 60 and 80 degrees Fahrenheit, but it can survive briefly in higher temperatures if necessary. Avoid planting it in locations where temperatures frequently dip below its survival threshold.
PruningManchurian catalpa trees should be pruned for shape and to remove any dead or damaged branches, which is best done during the dormant season in late winter or early spring. Pruning encourages a strong structure and can be performed every 2 to 3 years. Remove branches selectively to ensure that the tree maintains its natural form, taking care not to remove more than a quarter of the canopy at any one time.
CleaningAs needed
SoilManchurian Catalpa thrives in fertile, well-draining soil with a pH ranging from 5.5 to 7. A mix of loam, compost, and sand or perlite can provide the right structure and fertility. Ensure good organic content for nutrient supply and water retention.
RepottingManchurian Catalpa, being a large tree, is not typically repotted. It's planted outdoors where it has ample space to grow. Young trees may need transplanting every few years until they are established in a permanent location.
Humidity & MistingManchurian Catalpa is adaptable to a range of humidity levels but prefers moderate humidity. It does not have specific humidity requirements and will thrive in the ambient outdoor humidity of most temperate regions.
Suitable locationsIndoor
Not suitable for indoor growth; requires space and sunlight.
Outdoor
Plant in sunny spot with room for growth; water & mulch.
Hardiness zone
5-9 USDA
Life cycleThe Catalpa bungei, commonly known as the Manchurian catalpa, begins its life cycle as a seed, which, under the right conditions of warmth and moisture, will germinate and sprout. The seedling then develops a root system and grows into a young sapling, focusing on developing its stem and leaf structures. As it matures, the sapling enters a vegetative growth phase where it undergoes rapid growth, expanding its canopy of large, heart-shaped leaves which are known for their ornamental value. After a few years, the Manchurian catalpa reaches the reproductive stage, producing panicles of bell-shaped white flowers, often with purple and yellow inner markings, which attract pollinators such as bees. Following pollination, the plant produces long, slender seed pods that contain numerous winged seeds, which, upon maturity, are dispersed by wind or gravity to begin a new generation. The plant will repeat this reproductive cycle annually while continuing to grow and thicken its woody structure for many years, typically enjoying a long life span if conditions are favorable.
PropogationPropogation time
Spring-Early Summer
Propogation: The Catalpa bungei, commonly known as Manchurian catalpa, is typically propagated through the method of seed sowing. The most popular time to sow Catalpa bungei seeds is in the late winter to early spring, when the risk of frost has passed. To propagate by seed, first collect the mature seed pods in the fall after they have dried on the tree. Extract the seeds from the pods and store them in a cool, dry place until ready for planting. When sowing, the seeds should be lightly covered with soil and kept moist until germination, which usually occurs within a few weeks. Seeds are best started in pots with well-drained soil and then transplanted outside once they have developed a strong root system and are sturdy enough to survive the elements.
