Here are a few things you need to remember when planting alliums:
– Plant them in the fall.
– Get the root side down, with the pointy end up.
– Get the planting depth right. If you plant your bulbs too deep, they may not have enough energy to make it to the soil’s surface. If you plant them too shallow, the blooms may topple over when it reaches its full height.
In this video, Fine Gardening editor Steve Aitken demonstrates how to plant alliums.