Depending on the variety, the ornamental onion is a delicate little plant or, as a giant onion, an imposing appearance, but its flower is always an eye-catcher. It usually flowers in early summer, but should be planted in autumn in good time.
Ornamental onions are best planted in the fall
The period from September to November is generally regarded as the ideal planting time. If the ground is frost-free, you can still plant your ornamental onions in December. For some varieties, later planting makes sense, since the ornamental onions that sprout early may be at risk of frost. Incidentally, this generally applies to ornamental onions during a longer period of frost in late spring.
The essentials in brief:
- ideal planting time: September to November
- Requirements: frost-free soil, sunny location
- Planting depth: three times the bulb height
- put some compost in the planting hole
tips
The earlier you plant your ornamental onions in the fall, the sooner they will sprout in the spring. If you expect late frosts, it makes sense to plant later.