With its often purple and ball-shaped flowers, the ornamental onion perfectly compensates for weak points in the garden. But he does not feel in good hands at every location.
Ornamental onions prefer to be in the sun
Much to little sunshine
The ornamental onion prefers to be in full sun. It can also thrive in semi-shade without any problems. But there are also varieties that prefer to be in partial shade to shade. This includes, for example, Allium triquetrum. In principle, almost all types of ornamental onions love warmth.
The substrate: rich in nutrients and permeable
You should plant your ornamental onion in a substrate that mimics the soil of its area of origin. The following properties are extremely advantageous:
- nutritious
- humorous
- moderately moist to dry (the larger the onion, the drier)
- well drained
- calcareous
tips
Since the ornamental onion gets an unsightly yellowish foliage in summer, it should be underplanted with ground-covering and clumpy perennials such as lady's mantle, cranesbill and bed roses.