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Bignoniaceae FAMILY

Catalpa ovata

Catalpa ovata

Edibility
1/5
Medicinal
1/5

Safety & Hazards

None known

Cultivation Details

HabitDeciduous Tree
Growth—

Prefers a good moist loamy soil and a sunny position that is not exposed[1, 2]. Tolerates heavy clay soils. Very resistant to atmospheric pollution[3]. Plants are hardy to about -15°c, probably more in continental climates[4], they grow best in areas with hot summers[3]. Protect plants from late frosts when they are young[4]. Transplants easily[4]. The flowers are very fragrant[5]. The bruised foliage has an aromatic fragrance[5]. The flowers are considered to be one of the best bee plants in Japan[5]. Plants in this genus are notably resistant to honey fungus[4].

Propagation

Seed - best sown outdoors, or in a cold frame, as soon as it is ripe[4]. Stratify stored seed for 3 weeks at 1°c and sow in spring[4]. 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[4]. Root cuttings in winter[4]. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-20. <temperate.theferns.info/plant/Catalpa+ovata>

Pollinators

Bees

References

  1. [1]RHS Dictionary of Plants plus Supplement. 1956 — F. Chittendon. · Oxford University Press · 1951 · ISBN - ↩︎Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [ 200 ]).
  2. [2]Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. — Bean. W. · Murray · 1981 · ISBN - ↩︎A classic with a wealth of information on the plants, but poor on pictures.
  3. [3]The RHS Gardener's Encyclopedia of Plants and Flowers — Brickell. C. · Dorling Kindersley Publishers Ltd. · 1990 · ISBN 0-86318-386-7 ↩︎Excellent range of photographs, some cultivation details but very little information on plant uses.
  4. [4]The New RHS Dictionary of Gardening. 1992. — Huxley. A. · MacMillan Press · 1992 · ISBN 0-333-47494-5 ↩︎Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
  5. [5]Scented Flora of the World. — Genders. R. · Robert Hale. London. · 1994 · ISBN 0-7090-5440-8 ↩︎An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.
  6. [6]Plantae Wilsonae. Vol 1 - 3 — Wilson. E. H. · University Press; Cambridge. · 1911 - 1917 · http://www.biodiversitylibrary.org ↩︎Details of the palnts collected by the plant collector E. H. Wilson on his travels in China. Gives some habitats. Not for the casual reader. It can be downloaded from the internet.
  7. [7]Cornucopia - A Source Book of Edible Plants. — Facciola. S. · Kampong Publications · 1990 · ISBN 0-9628087-0-9 ↩︎Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
  8. [8]Famine Foods listed in the Chiu-Huang Pen-ts'ao. — Reid. B. E. · Southern Materials Centre; Taipei · 1977 · ISBN - ↩︎A translation of an ancient Chinese book on edible wild foods. Fascinating.
  9. [9]Atlas of Medicinal Plants. — Kariyone. T. · Nihon Rinshosha; Osaka · 1973 ↩︎A good Japanese herbal.
  10. [10]Medicinal Plants of China — Duke. J. A. and Ayensu. E. S. · Reference Publications, Inc. · 1985 · ISBN 0-917256-20-4 ↩︎Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.
  11. [PFAF]Plants for a Future — pfaf.org ↩︎