Catalpa speciosa Shawnee Wood, Northern catalpa, Early Flowering Catalpa, Hardy Catalpa, Western Catalpa, Indian Ciga PFAF Plant Database

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Summary

Bloom Color: White. Main Bloom Time: Early summer, Late summer, Late spring, Mid summer. Form: Oval.

Physical Characteristics

Catalpa speciosa is a deciduous Tree growing to 15 m (49ft) by 15 m (49ft) at a fast rate.
See above for USDA hardiness. It is hardy to UK zone 5 and is not frost tender. It is in flower from May to June, and the seeds ripen in October. 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. 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

Plant Habitats

Woodland Garden Canopy;

Edible Uses

None known

References More on Edible Uses

Medicinal Uses

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None known

References More on Medicinal Uses

Other Uses

Wood

Wood - soft, not strong, light, coarse-grained, very durable in the soil[11, 61, 82, 171]. It weighs 26lb per cubic foot[235]. It is largely used for fence posts and rails, telegraph poles etc, it is also occasionally used for making furniture, the interior finish of buildings etc. A very valuable timber tree in N. America[1, 11, 61, 82, 171].

Special Uses

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. Very resistant to atmospheric pollution[188]. 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 fast-growing tree in the wild, where it commences to flower when about 15 years old[229]. Flowering is cyclic, with large crops of seed being produced every 2 - 3 years[229]. The wood is weak which often results in branches breaking off in strong winds[229]. When damaged by herbivores, the leaves produce extrafloral nectar that attracts insects which deter the leaf-eating herbivores[274]. There are some named forms selected for their ornamental value[200]. Trees transplant easily[200]. Plants in this genus are notably resistant to honey fungus[200]. Special Features: North American native, Naturalizing, Blooms are very showy.

References Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Celsius Fahrenheit:

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 (Indiana (southwest), Illinois, Missouri, Arkansas, Kentucky, Tennessee, Texas (northeast))

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 :

IUCN Red List

Related Plants

Latin Name	Common Name	Habit	Height	Hardiness	Growth	Soil	Shade	Moisture	Edible	Medicinal	Other
Catalpa bignonioides	Indian Bean Tree, Southern catalpa	Tree	15.0	5-9	M	LMH	N	M	0	2	3
Catalpa bungei		Tree	10.0	5-9		LMH	SN	M	0	2	2
Catalpa ovata	Chinese Catalpa	Tree	10.0	5-9	F	LMH	N	M	1	1

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.

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Expert comment

Author

(Warder. ex Barney.)Warder. ex Engelm.

Botanical References

1143200

Links / References

For a list of references used on this page please go here

Readers comment


cole	Mon Jul 14 2008

It tastes bad, hurts the throat, but it's fun to bit people with pods)))

Catalpa speciosa - (Warder. ex Barney.)Warder. ex Engelm.