Troubleshooting
Common Milkwort problems — and how to fix them
Common Milkwort (Polygala vulgaris) 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.
Plants dying out after 1–2 seasons
Common Milkwort is short-lived in cultivation if soil fertility rises even slightly. Avoid any organic mulch or fertiliser, and allow it to self-seed to maintain a colony.
Smothering by coarse grasses and weeds
This slender wildflower is a weak competitor. Remove vigorous grasses and broad-leaved weeds by hand, and keep the surrounding sward mown short to give it light.
Prevent common milkwort problems before they start
Most common milkwort issues are care-mismatch, not bad luck. Dial in the basics:
Common Milkwort problems — FAQ
Why is my common milkwort plants dying out after 1–2 seasons?
Common Milkwort is short-lived in cultivation if soil fertility rises even slightly. Avoid any organic mulch or fertiliser, and allow it to self-seed to maintain a colony.
Why is my common milkwort smothering by coarse grasses and weeds?
This slender wildflower is a weak competitor. Remove vigorous grasses and broad-leaved weeds by hand, and keep the surrounding sward mown short to give it light.