It looks like a shrub or a small tree, usually less than two meters in size, with brown bark, bright red in color in the branches just grown.
Before the leaves appear, at the end of the winter, it produces a lot of yellow flowers, grouped in slightly hanging racemes that give it a very colourful and cheerful appearance.
The leaves are similar to those of the hazelnut, roundish in shape, furrowed by deep veins, green-blue on the upper page, light green on the lower page.
The Corylopsis pauciflora is a very choreographic shrub and can be grown quite easily, respecting some rules that allow a lush development.
This plant prefers positions in full sun or partial shade, possibly sheltered from strong winds and excessive frost; we recommend shading on the hottest days of summer.
It can withstand cold temperatures as low as -15°C, otherwise, if the minimum temperatures are lower, a more sheltered area should be provided, protecting the corylopsis pauciflora from the winds. It can be damaged by late frost and is quite sensitive to smoke.
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It does not need large quantities of water, however, we recommend watering every 10-20 days from spring to early autumn, especially in the hottest and driest days when the plant can be subjected to thermal stress that can affect its health. Provide fertiliser every 20-30 days from early spring to early autumn.
If the leaves tend to turn yellow, provide acidophilic plant fertiliser from time to time.
A distinction must then be made between specimens grown in the open ground and those planted in pots.
The latter, in fact, will need more watering, but always taking into account to let the soil dry, avoiding stagnation of water that could damage the plant.
The Corylopsis pauciflora does not have great needs as far as the soil is concerned, provided it is well drained and rich of humus; usually it prefers soil to slightly acidic Ph. The most suitable substrates are those of chalky, sandy and clayey type, which avoid water stagnations and allow the development of the roots.
During the spring, semi-woody cuttings can be made, which are to be rooted in a mixture of peat and sand in equal parts. The new plants are to be planted after at least two years, in order to avoid that the winter cold ruins them.
Corylopsis pauciflora: Pests to diseases
This plant is very resistant, hardly suffers from the attack of pests or diseases. Occasionally aphids can spoil new shoots. If the soil in which it is planted is excessively alkaline the corylopsis may suffer from ferric chlorosis. If it shows signs of pests or diseases it is possible to practice spring treatments based on copper and sulfur, while in summer it may be useful to use insecticides to avoid the appearance of aphids.