Jacaranda

The genus Jacaranda or Rosewood (Jacaranda), includes about 50 species of evergreen and deciduous trees and shrubs, some of which are especially valued as beautiful flowering ornamental plants. The most common type is Jacaranda mimosaefolia. A tree with an extensive uniform crown can reach a height of 15-20 m. Gives valuable rosewood wood. Leaves (the plant is often considered evergreen, because the leaves often remain until spring) are biconvex, consisting of 16 or more pairs of awns extending from the main awn, each of which, in turn, has 14-24 pairs of oblong leaflets with a whole or toothed edge. Very lush tubular lilac-blue flowers are collected in panicles and bloom in May-June, sometimes until the new ones are fully opened. leaves. Fruits are oblong or rounded lignified seed pods that crack when ripe. Jacaranda brasiliana (J. brasiliana), jacaranda obtusifoiia (J. obtusifoiia), jacaranda aculifolia (J. aculifolia) and other species are all large trees with hard, heavy, beautifully colored (from dark red to chocolate brown) wood, and they are called rosewood. Jacaranda jasminoides (J. jasminoides) is grown exclusively as an ornamental species.

The genus Jacaranda or Rosewood (Jacaranda), includes about 50 species of evergreen and deciduous trees and shrubs, some of which are especially valued as beautiful flowering ornamental plants.

The most common type is Jacaranda mimosaefolia. A tree with an extensive uniform crown can reach a height of 15-20 m. Gives valuable rosewood wood. Leaves (the plant is often considered evergreen, because the leaves often remain until spring) are biconvex, consisting of 16 or more pairs of awns extending from the main awn, each of which, in turn, has 14-24 pairs of oblong leaflets with a whole or toothed edge. Very lush tubular lilac-blue flowers are collected in panicles and bloom in May-June, sometimes until the new ones are fully opened. leaves. Fruits are oblong or rounded lignified seed pods that crack when ripe.

Jacaranda brasiliana (J. brasiliana), jacaranda obtusifoiia (J. obtusifoiia), jacaranda aculifolia (J. aculifolia) and other species are all large trees with hard, heavy, beautifully colored (from dark red to chocolate brown) wood, and they are called rosewood.

Jacaranda jasminoides (J. jasminoides) is grown exclusively as an ornamental species.

Cultivation

Plants of the genus Jacaranda are grown in areas with mild winters in the open ground in parks and gardens. In moderately cold climates, they should be cultivated in pots and exposed to the air only in the warm season, and then from autumn to spring they should be kept in a protected and well-lit room or covered with plastic wrap, and the soil at the base should be thoroughly mulched. Planted in a permanent place on the site in the spring. Plants do not have special requirements for the soil, although they prefer a fairly light mechanical composition of the soil, they respond well to the introduction of organic fertilizers. fertilizers at the rate of 2-3 kg per tree, depending on its size. They are also grown in pots filled with fertile soil. (2/3 of light fertile land and 1/3 of peat) with the addition of 300 g of complex fertilizer per bucket of substrate. In the period from April to August, once every 15-20 days, a mineral complex fertilizer is added to the water for irrigation in the amount of 20-30 g per bucket. Pruning is done at an early stage of development only in order to avoid the formation of two tips. Later, they are limited to removing dry and damaged branches. Potted plants are pruned, if required, in the fall to limit their size.

Plants of the genus Jacaranda are grown in areas with mild winters in the open ground in parks and gardens. In moderately cold climates, they should be cultivated in pots and exposed to the air only in the warm season, and then from autumn to spring they should be kept in a protected and well-lit room or covered with plastic wrap, and the soil at the base should be thoroughly mulched. Planted in a permanent place on the site in the spring. Plants do not have special requirements for the soil, although they prefer a fairly light mechanical composition of the soil, they respond well to the introduction of organic fertilizers. fertilizers at the rate of 2-3 kg per tree, depending on its size. They are also grown in pots filled with fertile soil. (2/3 of light fertile land and 1/3 of peat) with the addition of 300 g of complex fertilizer per bucket of substrate. In the period from April to August, once every 15-20 days, a mineral complex fertilizer is added to the water for irrigation in the amount of 20-30 g per bucket. Pruning is done at an early stage of development only in order to avoid the formation of two tips. Later, they are limited to removing dry and damaged branches. Potted plants are pruned, if required, in the fall to limit their size.

Location

They need a place in the open sun, protected from the cold wind.

Temperature

Since these plants are of tropical origin, they can be left outdoors in winter only where there is no danger of severe frosts.

Watering

Watering is especially important in times of drought and for potted plants. Water infrequently and abundantly, but not excessively, so as not to delay the growth of low-lignified parts of the plant.

Transplant

Transplanted in the spring each time in pots slightly larger than the previous one; grown-up specimens are not transplanted, but only remove the old surface layer of the earth.

Reproduction

The most common method is cuttings. In summer, take well-lignified cuttings about 15 cm long and place them in a mixture of peat and sand (1:1), put them in a closed, unheated room. After rooting, the seedlings are distributed in pots one at a time, and after several transshipments, after 2-3 years in the spring, they are planted in a permanent place in the ground.

Diseases

Plants are affected by chlorosis, which causes yellowing of the leaves. This happens most often due to a lack of iron or other nutrients when growing on heavy soil in the garden or in a pot. Treat with iron chelate or take preventive measures, use a suitable primer. Of the insects, the greenhouse whitefly (Trialeurodes vaporariorum) is particularly dangerous, which inhabits the underside of the leaves and sucks the sap, discoloring the leaves, as well as wilting the plant as a whole. Treatment with appropriate insecticides is required.

Acquisition

Jacaranda can only be found in specialized nurseries and well-stocked gardening centers. Buy small plants in containers or with a lump of earth. It is cheaper, and the plants themselves are easier to tolerate the shock of transplanting.

Valuable wood Rosewood is used to make expensive furniture, musical instruments (piano), colored parquet, plywood, etc. This wood is highly polished and has various tones (dark, even with a purple tint).

Valuable wood

Rosewood is used to make expensive furniture, musical instruments (piano), colored parquet, plywood, etc. This wood is highly polished and has various tones (dark, even with a purple tint).