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medium to large shrub, deciduous, native to North America; it has an erect habit, characterized by some stems that start from the ground, densely branched, with disordered foliage; the bark is smooth, light brown, or greyish. The foliage appears in spring, is lanceolate in shape, dark green on the upper page, it has a light color on the lower page, with the presence of a thin down, in spring it produces particular bell-shaped flowers, turned downwards, gathered together in small bunches. The flowers of the halesia carolina are white, sometimes pink, but there are hybrids with an intense pink flower. The plants of halesia carolina do not grow too quickly, over a few years the shrubs can easily reach 180-200 cm in height.
Plants of this kind prefer sunny, or even partially shady, positions, although it is advisable that they receive at least 3-4 hours of direct sun every day; it prefers cool places, so in areas with torrid summers it is good to make sure that the shrubs enjoy shade rest during the hottest hours of the day. They do not fear the cold and can therefore be grown in the open ground even in places where winters with cold temperatures are likely.
As regards the supply of water, it is advisable, from March to October, to prevent the soil from remaining dry for excessively long periods; in case of drought then we provide for watering, wetting the ground in depth.
At the end of winter we plant organic fertilizer at the feet of the plants which will provide the plants with all the nourishment necessary for their best development.
The pruning of this plant is not necessary for its health, but to maintain the desired shape, it is possible to intervene by shortening the branches too long, in the post-flowering period.
With regard to the best cultivation techniques, it is advisable to place the plant in a soft and loose, well-drained soil, rich in humus; halesia carolina plants fear soils with an excessively high pH, it is therefore good to supply slightly acid or neutral soil.
When these plants are planted, it is good to prepare a compound in which peat, pumice and organic substance are present, so as to have a well-drained soil available, which avoids the formation of dangerous water stagnation.
The multiplication of this type of plants occurs by seed, in spring, or by semi-woody cutting, in summer.
In the case of sowing it is possible to proceed also in October, in special containers that must be placed in a cold box and which must be kept for a couple of years, before being transplanted into the ground. In this way the plants will take the necessary strength to develop at their best.
Halesia carolina: Parasites and Diseases
These plants are rather rustic and very resistant to the most common pests, so they are generally free of insects; Cultivation in basic soils can cause the appearance of ferric chlorosis.
It is possible to intervene in the vegetative recovery phase with broad-spectrum treatments that allow the elimination of problems.