Handroanthus (=Tabebuia) impetiginosa
Viable seeds / kg (approx.): 5,520
Minimum purchase: 100 g
H. impetiginosus is
native from Mexico to Argentina. It can reach up to 30 m in height and
diameters (DBH) of up to 50 cm, with profuse, dark pink flowering, which makes it
very attractive as ornamental. It is Paraguay’s national tree.
It is not widely used in plantations, but mostly as ornamental, to
combat soil erosion and in fences. It is very suitable for use in the
improvement of degraded areas and ecological restoration of the dry forest. It
usually shows slow growth. The wood is yellowish, very hard and heavy;
therefore, it is not appropriate for uses such as furniture, but mainly for
external uses, such as poles and floors.
It is common in dry and deciduous or semi-deciduous forests, at
elevations from sea level to 1000 masl, with climates that vary from dry to
humid, with mean annual rainfall of 800 to 2000 mm and mean annual temperatures
of 18 to 23 ° C.
It prefers light soils with good drainage.
Seeds and nursery
As a pre-germination treatment it is recommended to soak the seeds in running
water at room temperature for 24 hours. For the seedbed it is recommended to
use a loose substrate such as river sand, well washed and disinfected. The seed
should be distributed evenly or in rows 2-3 cm apart, sowing it superficially.
Germination begins 5 to 15 days later and transplanting can be done when the
seedlings 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 4-6 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.
H. impetiginosus is a slow growing species; in good sites it can reach a height of 3.5 m
in 2 years.
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