Ornamental onion care after flowering– Caring for ornamental garlic after flowering is very easy. Simply keep the plants moderately watered until the leaves begin to yellow and shrivel. Do not cut back the leaves until they have turned completely yellow, as this is when the bulb stores nutrients for the next flowering cycle. You can then cut the plants back to the ground, leave the seed heads or dig up the tubers. Allium bulbs should be divided every three or four years.
Overwinter ornamental garlic– Plants in the bed are hardy and do not need any special care in winter. Plants in containers can be more susceptible to winter cold. To ensure they survive the winter well, place the containers in a protected place. Protect them from winter rains by placing them in the lee of a wall or in a greenhouse.
