Senna multijuga
Senna multijuga
Safety & Hazards
None known
Cultivation Details
Requires a sunny position[1]. Succeeds in a wide range of soils so long as they are well-drained[1, 2]. Established plants are drought tolerant[2]. The tree is reported to be invasive in Hawaii[3]. A fast-growing tree, easily reaching a height of 3.5 metres within 2 years from seed[1]. There are conflicting reports on whether or not this tree has a symbiotic relationship with certain soil bacteria, so it is unclear as to whether this tree fixes atmospheric nitrogen[4].
Propagation
Seed - best sown as soon as it is ripe in a partially shaded position in a nursery seedbed or in individual containers. A high germination rate can usually be expected, with the seed sprouting within 10 - 30 days[1]. When the seedbed-sown seedlings are 4 - 6cm tall, pot them up into individual containers and they should be ready to plant out 4 - 5 months later[1]. Like many species within the family Fabaceae, once they have been dried for storage the seeds of this species may benefit from scarification before sowing in order to speed up germination. This can usually be done by pouring a small amount of nearly boiling water on the seeds (being careful not to cook them!) and then soaking them for 12 - 24 hours in warm water. By this time they should have imbibed moisture and swollen - if they have not, then carefully make a nick in the seedcoat (being careful not to damage the embryo) and soak for a further 12 hours before sowing[PFAF]. Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2026-02-20. <tropical.theferns.info/viewtropical.php?id=Senna+multijuga>
Pollinators
Insects
References
- [1]Brazilian Trees. Volume 1. 4th Edition. — Lorenzi. H. · Instituto Plantarum De Estudos Da Flora; Brazil. · 2002 · ISBN 85-86714-17-8 ↩︎Information on 350 species of Brazilian trees. Stunning photographs of each species, brief details on the plant, its uses and how to grow it from seed. A superb work, with the minor irritation that the translation from Portuguese is not of the best.
- [2]Desert Tropicals — http://www.desert-tropicals.com/ ↩︎The main focus of the site is succulent plants, but it also contains information on a wide range of other species. Usually at least one good photograph, plus basic information about the plant and its cultivation.
- [3]Pacific Island Ecosystems at Risk — http://www.hear.org/pier/scientificnames/index.html ↩︎A very good website detailing weed species that have been introduced into the Pacific Islands.
- [4]Nodulation Plants in GRIN Taxonomy — United States Department of Agriculture · http://www.ars-grin.gov/~sbmljw/cgi-bin/taxnodul.pl?language=en ↩︎An online database listing plants that have either positive or negative reports on root and stem nodulation with nitrogen-fixing bacteria.
- [5]Medicinal Plants of Brazil — Mors W.B.; Rizzini C.T.; Pereira N.A. · Reference Publications; Michigan. · 2000 · ISBN 0-917256-42-5 ↩︎An extremely concise book, listing approximately 1,500 species and varieties of plants with their botanical name, common name in Brazil, regions in Brazil where the plant is found, a brief list of uses and any medically active compounds in the plant.
- [PFAF]Plants for a Future — pfaf.org ↩︎