The Exochorda x macrantha is a medium-sized deciduous shrub native to central-northern Asia. It has thin, arched stems, of brown or red-brown color; the habit is roundish and the adult shrubs reach 3-4 m in height. In late spring this plant produces numerous small white flowers; in the summer, the fruits take the place of pentalobate woody capsules, which remain on the plant for months.
The leaves of this variety are oblong or rounded, dark green, glossy; generally they do not take on a decorative color before falling, while the fruits are very decorative in the autumn months.
For a better development of the shrub and to guarantee it always luxuriant growth it is good to prune it after flowering, removing the little developed or disordered branches.
The Exochorda x macrantha it should be placed in a sunny position, preferably well ventilated, and with the base of the shrub cool, even in the shade. It is however a very rustic and resistant variety of plant; in fact these shrubs do not fear the cold, and can withstand temperatures close to -15 ° C.
In the case of excessively hot summers they may need a slight shade to prevent direct sunlight from ruining the health of the plant.
Being a rustic plant it is possible to grow it in the garden throughout the year.
From March to September water regularly, especially in the hottest and dry months. The Exochorda x macrantha prefers damp and cool soils, so when the temperatures are very high it is important to supply more water.
In the vegetative period it is good to supply some fertilizer for flowering plants, at least every 15-20 days, mixed with the water of the watering. In the case of a new transplant it is advisable to place granular slow release fertilizer or mature manure that provides the necessary nutrients in the soil.
The Exochorda x macrantha prefers the loose, well-drained, rich in organic matter, slightly acidic soils that guarantee a correct degree of humidity. For this reason, in the hottest periods it is necessary to supply a greater quantity of water so as to prevent excessive dryness. At the same time it is useful to avoid stagnation that could be harmful to the health of this shrub.
The multiplication of this variety of plants occurs by seed, in spring, after stratifying the seeds in the sand and keeping them in the refrigerator for 2-3 weeks.
Wanting in July-August it is also possible to take cuttings from the new shoots and then implant them in a vase where they can take root.
Exochorda x macrantha: Pests and diseases
The presence of excessively calcium-rich soils or those lacking in bio-available iron can promote the onset of ferric chlorosis.
Towards the end of winter it can be useful to intervene with targeted products that prevent possible fungal diseases. The use of insecticidal products is recommended only when flowering is not already in progress to avoid compromising the action of pollinating insects.