What to Plant with Alliums: A Designer's Guide to Stunning Companions
Alliums are one of those plants that stop people in their tracks. Those architectural spheres of purple, white, or lilac floating above a border on slender stems: they are instantly recognisable and endlessly satisfying to design with. But here is the thing most planting guides skip over: alliums have an untidy secret. Their foliage starts to yellow and die back before or during flowering, leaving a gap at ground level that no amount of wishful thinking will disguise.
The solution is not complicated. It comes down to choosing the right companions, plants that hide the dying foliage, complement the flower heads, and carry the border through long after the alliums have finished. Over 36 years of working with plants in Kent gardens, I have found that the best allium combinations follow a few straightforward design principles rather than endless plant lists.