Troubleshooting
Columbine 'McKana Giant' problems — and how to fix them
Columbine 'McKana Giant' (Aquilegia x hybrida) 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
Very common after flowering in summer. Cut foliage back hard to encourage fresh growth; improve air circulation.
Aquilegia leaf miner
Pale tracery patterns in leaves from Phytomyza aquilegivora. Remove and destroy affected leaves.
Short plant lifespan
Hybrid aquilegias are often shorter-lived than species (2–3 years). Treat as short-lived perennials and resow regularly.
Aphids
Common on young flower stems. Encourage beneficial insects or apply a soap-based spray.
Sawfly damage
Larvae can strip leaves rapidly. Inspect plants regularly in spring and remove by hand.
Prevent columbine 'mckana giant' problems before they start
Most columbine 'mckana giant' issues are care-mismatch, not bad luck. Dial in the basics:
Columbine 'McKana Giant' problems — FAQ
Why is my columbine 'mckana giant' powdery mildew?
Very common after flowering in summer. Cut foliage back hard to encourage fresh growth; improve air circulation.
Why is my columbine 'mckana giant' aquilegia leaf miner?
Pale tracery patterns in leaves from Phytomyza aquilegivora. Remove and destroy affected leaves.
Why is my columbine 'mckana giant' short plant lifespan?
Hybrid aquilegias are often shorter-lived than species (2–3 years). Treat as short-lived perennials and resow regularly.
Why is my columbine 'mckana giant' aphids?
Common on young flower stems. Encourage beneficial insects or apply a soap-based spray.
Why is my columbine 'mckana giant' sawfly damage?
Larvae can strip leaves rapidly. Inspect plants regularly in spring and remove by hand.