Troubleshooting
Two-Flowered Everlasting Pea problems — and how to fix them
Two-Flowered Everlasting Pea (Lathyrus grandiflorus) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Powdery mildew
A common late-season problem, especially in dry summers with poor air circulation. Improve ventilation, water at the base rather than overhead, and apply a sulphur-based fungicide or potassium bicarbonate spray at the first signs of white powdery patches on leaves.
Invasive spreading
Underground rhizomes spread vigorously and can become invasive in border situations. Install a root barrier or grow in a contained bed. Division every few years controls spread and rejuvenates the plant.
Aphids
Blackfly and greenfly commonly colonise the growing tips and flower stems in late spring and early summer. Pinch out affected tips, blast off colonies with a strong water jet, and apply insecticidal soap if infestations are heavy.
Prevent two-flowered everlasting pea problems before they start
Most two-flowered everlasting pea issues are care-mismatch, not bad luck. Dial in the basics:
Two-Flowered Everlasting Pea problems — FAQ
Why is my two-flowered everlasting pea powdery mildew?
A common late-season problem, especially in dry summers with poor air circulation. Improve ventilation, water at the base rather than overhead, and apply a sulphur-based fungicide or potassium bicarbonate spray at the first signs of white powdery patches on leaves.
Why is my two-flowered everlasting pea invasive spreading?
Underground rhizomes spread vigorously and can become invasive in border situations. Install a root barrier or grow in a contained bed. Division every few years controls spread and rejuvenates the plant.
Why is my two-flowered everlasting pea aphids?
Blackfly and greenfly commonly colonise the growing tips and flower stems in late spring and early summer. Pinch out affected tips, blast off colonies with a strong water jet, and apply insecticidal soap if infestations are heavy.