Viable seeds / kg (approx.): 33,000
Minimum purchase: 100 g
T rosea is native to Mexico, Central
America and northern South America. It is a deciduous tree of medium to large
size, which can reach up to 37 m in height and 50-100 cm in diameter (DBH). Its flowers, from pink to purple, make it one of the most attractive trees as an ornamental. It is the national tree of El Salvador.
It shows a good behavior in
plantations, although it is not widely used as such, but mostly as ornamental, due
to its explosive flowering that goes from pale pink to purple. It is also used
in enrichment and ecological restoration systems in dry areas, silvopastoral
systems, in boundaries and as shade. It produces wood of good quality and
value, of strength similar to teak, easy to work with hand tools, with an
attractive finish and luster. The sapwood is pale pink and the heartwood is
golden brown to dark brown, used for furniture, light construction, boats,
sports equipment, floors and plating.
It grows in a variety of habitats,
at altitudes of 0-1300 masl and mean rainfall of 1200-2500 mm per year, with a
tendency to dominate in low humid forest, gallery forest and areas with
seasonal flooding. It also occurs in tropical dry forest, mountain forest and
abandoned agricultural land.
It grows best in fertile soils
(sandy, alluvial) and well drained, but it tolerates clay-loam, poor, acidic
and infertile soils, with occasional flooding.
Seeds and nursery
The seed germinates well without
pre-treatment, although to improve germination it is recommended to soak the
seeds in running water at room temperature for 24 hours. For the seedbed, a loose
substrate such as river sand should be used, well washed and disinfected. The
seed should be distributed evenly or in rows 2-3 cm apart, sowing it
superficially. Germination begins 14-21 days later and the seedlings can be
transplanted when they reach 5 cm in height. The root is usually very long, so
it must be pruned to about 3 cm in length. When transplanting, be sure to make
a hole deep enough in the substrate to avoid curving up of the roots. Shade
should be provided for the first 2-3 weeks after transplanting, for instance
using shade clothing (saran) 50%. With seeds of good germination it is possible
to sow directly in the containers, placing 1-2 seeds per hole. Plants will be ready
for field planting after 3-4 months in the nursery. A couple of weeks before
planting out in the field it is recommended to reduce watering to stimulate the
lignification of the stems.
In a wide variety of sites in
Central America, T. rosea has shown
increments of 0.8-2.6 cm in diameter and 0.7-2.2 m in height per year, and
increments in volume from 3.2 up to 16.4 m3 /ha /year. In good sites
it can reach 9 m in height in 3 years.
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