Planting Depth When planting allium bulbs, you want to plant them at a depth of two to three times their diameter—typically around 4 to 8 inches deep. Dig a hole that's at least twice as deep as ...

Adding blue allium plants to your spring garden attracts pollinators, and makes your flower beds bright with color. While the size, form and bloom period of blue allium flowers vary from one ...

If you haven’t already planted allium bulbs in the fall, you can still plant them in March, although the roots won’t have as ...

How late can you plant allium bulbs? When the Which? Gardening magazine researchers trialled planting allium bulbs at different times, they found that bulbs planted in September emerged in March to ...