Perennial or short-lived?

The majority is perennial

In this country, the majority of the ornamental onion plants available in stores are perennial. They owe this to their good winter hardiness. If there is frost, this does not cloud the onion underground. It is robust and will sprout again next spring.

A few exceptions are sensitive to frost

But there are exceptions. A few ornamental onion plants such as the species called Allium schubertii are not winter hardy and would therefore only be annual if they were left outside for the winter. It is therefore advisable to overwinter such specimens.

Hibernate sensitive species and varieties

It works like this:

• Do not water or fertilize after flowering
• cut down in autumn
• Carefully dig up the onion
• Put the onion in a cool and dark place
• Winter frost-free until spring
• from April back to the field plants

This is how your ornamental onion will live for many years!

Even hardy specimens can 'run out of air' at some point. If they are weakened, they will not live long. The onion dies. Therefore, the right care and the correct choice of location are the be-all and end-all!

Ornamental onion plants should be regularly supplied with nutrients in order to be perennial. This task is carried out by an organic one Complete fertilizer such as compost. This is how the ornamental onion is supplied in spring. Ornamental onion in the pot is fertilized with a liquid fertilizer until the flowering period.

Next to the Fertilize the following is decisive:

• sunnier Location
• Winter in a pot frost-free
• do not let it dry out
• keep from getting wet
• Do not cut leaves too early
• Cut off inflorescences after wilting (seed formation costs strength)