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The best time for planting decorative onions is from September 20 to October 15. You can plant them in the spring, at the beginning of May.
Decorative bows take root very quickly and well in a new place.
It is most convenient to sow them before winter, but it is necessary to choose a place where the seeds will not float away in the spring with melt waters.
When grown through seedlings, the seeds are mixed with wet sand or peat and stratified in the refrigerator for 2-3 months.
Even the most crowded gardens can accommodate decorative onions, as they do not take up much space.
The plant is considered a good honey plant.
Most species love light, so sunny areas are chosen for them.
The more natural light there is in the garden, the more intense the color of allium leaves and flowers.
There are two reasons. Most likely, the onions in your conditions do not have enough heat in the summer to set a flower bud.
In addition, from year to year the bulbs are divided at least in two and gradually become smaller, which, to put it mildly, also does not contribute to flowering.
Previously, we told you how to grow godetia.