Troubleshooting
Bladder Cherry problems — and how to fix them
Bladder Cherry (Physalis alkekengi var. franchetii) 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.
Uncontrolled Rhizome Spread
Var. franchetii is even more vigorous than the species and can spread several metres per season. Use buried plastic root-barrier edging at least 30 cm deep, or grow in a contained raised bed. Annual removal of perimeter rhizomes is necessary.
Calyx Rot in Wet Weather
The inflated calyces trap moisture in rainy autumns, leading to botrytis rot before they can dry properly. Harvest stems when calyces are fully coloured but before prolonged wet spells; hang to dry indoors in a warm, airy space.
Aphid Infestations
Colonies of aphids, particularly blackfly, can congregate on tender growing tips in late spring. Encourage natural predators such as ladybirds and lacewings. A strong water jet dislodges small infestations; insecticidal soap is effective for larger ones.
Prevent bladder cherry problems before they start
Most bladder cherry issues are care-mismatch, not bad luck. Dial in the basics:
Bladder Cherry problems — FAQ
Why is my bladder cherry uncontrolled rhizome spread?
Var. franchetii is even more vigorous than the species and can spread several metres per season. Use buried plastic root-barrier edging at least 30 cm deep, or grow in a contained raised bed. Annual removal of perimeter rhizomes is necessary.
Why is my bladder cherry calyx rot in wet weather?
The inflated calyces trap moisture in rainy autumns, leading to botrytis rot before they can dry properly. Harvest stems when calyces are fully coloured but before prolonged wet spells; hang to dry indoors in a warm, airy space.
Why is my bladder cherry aphid infestations?
Colonies of aphids, particularly blackfly, can congregate on tender growing tips in late spring. Encourage natural predators such as ladybirds and lacewings. A strong water jet dislodges small infestations; insecticidal soap is effective for larger ones.