Troubleshooting
Sand Leek problems — and how to fix them
Sand Leek (Allium scorodoprasum) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Invasive bulbil spread
Produces prolific bulbils in the flowerhead that drop and colonise surrounding soil, making the plant difficult to eradicate. Harvest or deadhead before bulbils detach to contain spread.
Basal rot
Fusarium-related basal rot is triggered by waterlogged or compacted soils, causing yellowing foliage and soft, foul-smelling bulbs. Improve drainage and practise a 3-year Allium crop rotation to prevent build-up.
Prevent sand leek problems before they start
Most sand leek issues are care-mismatch, not bad luck. Dial in the basics:
Sand Leek problems — FAQ
Why is my sand leek invasive bulbil spread?
Produces prolific bulbils in the flowerhead that drop and colonise surrounding soil, making the plant difficult to eradicate. Harvest or deadhead before bulbils detach to contain spread.
Why is my sand leek basal rot?
Fusarium-related basal rot is triggered by waterlogged or compacted soils, causing yellowing foliage and soft, foul-smelling bulbs. Improve drainage and practise a 3-year Allium crop rotation to prevent build-up.