Planting in the ground.
Planting allium bulbs.
Doing so can improve drainage conditions.
6 8 apart 4 8 deep.
The bulb forming alliums will need to be planted in the fall.
Alliums will grow perfectly well in a well drained soil.
Plant this allium bulb collection and you will be so excited for next summer you won t want to wait.
3 atropurpureum bulbs 10 nigrum bulbs.
They should be planted in fall between september and november before the soil freezes.
Weave them through sunny borders or combine them with feathery grasses for best effect.
Plant the bulbs at a depth of roughly 3 4 times the size of the bulb.
Plant them at a depth of 2 3 times their diameter 4 6 in a well drained sunny or partly shaded site.
Deep pots are most suitable for alliums.
Alliums are amongst the most undemanding flower bulbs to plant tolerating most types of soil and hardy down to zone 4.
They hate waterlogged soil.
U003c p u003e allium sonoma collection.
How to grow alliums.
When to plant them.
So if you have a two inch bulb you would plant it four to six inches deep water them well after planting.
Plant allium bulbs in the fall they bloom in spring.
Then cross your fingers and wait for spring.
Allium planting guide when.
Space larger bulbs approx.
The planting depth should be two to three times the diameter of the bulbs.
Consider spreading a 2 inch 5 cm layer of agricultural grit or spent compost at the bottom of the hole before laying the bulb inside.
Usda hardiness zone 3 8 full sun well draining soil.
These ornamental onions are bold and architectural with large rounded heads of usually purple flowers followed by attractive seedheads.
When planting multiple allium bulbs the bulbs should be spaced 6 to 8 inches 15 to 20 cm apart.
Plant bulbs in fall for a spring bloom.
Once after planting moderately in spring.