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Summary
Bloom Color: White.
Main Bloom Time: Early summer, Late summer, Late spring, Mid summer. Form: Oval.
Physical Characteristics
Catalpa bignonioides is a deciduous Tree growing to 15 m (49ft) by 12 m (39ft) at a medium rate.
See above for USDA hardiness. It is hardy to UK zone 5 and is not frost tender. It is in flower from June to July, and the seeds ripen from October to December. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and can grow in heavy clay soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers moist soil. It can tolerate atmospheric pollution.
UK Hardiness Map
US Hardiness Map
Synonyms
C. syringaefolia. Bignonia catalpa. L.
Plant Habitats
Woodland Garden Canopy;
Edible Uses
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Antidote Antiseptic Cardiac Laxative Malaria Ophthalmic Sedative Vermifuge
A tea made from the bark has been used as an antiseptic, antidote to snake bites, laxative, sedative and vermifuge[222]. As well as having a sedative effect, the plant also has a mild narcotic action, though it never causes a dazed condition[7]. It has therefore been used with advantage in preparations with other herbs for the treatment of whooping cough in children, it is also used to treat asthma and spasmodic coughs in children[7, 254]. The bark has been used as a substitute for quinine in treating malaria[254]. The leaves are used as a poultice on wounds and abrasions[222]. A tea made from the seeds is used in the treatment of asthma and bronchitis and is applied externally to wounds[222]. The pods are sedative and are thought to have cardioactive properties[222]. Distilled water made from the pods, mixed with eyebright (Euphrasia officinalis) and rue (Ruta graveolens) is a valuable eye lotion in the treatment of trachoma and conjunctivitis[7].
References More on Medicinal Uses
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Other Uses
Wood
A fast-growing tree with an extensive root system, it has been planted on land that is subject to landslips or erosion in order to stabilize the soil[7]. Wood - coarse and straight-grained, soft, not strong, moderately high in shock resistance, very durable in the soil. It weighs about 28lb per cubic foot. It is highly valued for posts and fencing rails, and is also used for interior finishes, cabinet work etc[46, 61, 82, 227].
Special Uses
Scented Plants
References More on Other Uses
Cultivation details
Landscape Uses:Specimen, Street tree. Prefers a good moist loamy soil and a sunny position that is not exposed[1, 11]. Tolerates heavy clay soils[200]. Very resistant to atmospheric pollution[188]. Plants become chlorotic on shallow alkaline soils[202]. Plants are hardy to about -15°c, probably more in continental climates[200], they grow best in areas with hot summers[188]. Protect plants from late frosts when they are young[200]. A very ornamental plant[1], it is fast-growing in the wild where it often flowers when only 6 - 8 years old[229]. The sweetly-scented flowers are borne in forked panicles at the end of branches[245]. There are some named varieties selected for their ornamental value[188, 200, 202]. The trees transplant easily[200]. The crushed foliage has an unpleasant smell[202]. Another report says that the leaves are attractively scented when bruised[245]. Plants in this genus are notably resistant to honey fungus[200]. Special Features:North American native, Naturalizing, All or parts of this plant are poisonous, Blooms are very showy.
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
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Plant Propagation
Seed - best sown outdoors, or in a cold frame, as soon as it is ripe[200]. Stratify stored seed for 3 weeks at 1°c and sow in spring[200]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in a cold frame for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Softwood cuttings, 10cm long, in a frame. They should be taken in late spring to early summer before the leaves are fully developed[200]. Root cuttings in winter[200].
Other Names
If available other names are mentioned here
Native Range
NORTHERN AMERICA: United States (Alabama (south), Arkansas (south), Florida (north), Georgia (south), Louisiana (south), Mississippi (south), Texas (east))
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
Conservation Status
IUCN Red List of Threatened Plants Status :
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
Walter.
Botanical References
1182200
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