Troubleshooting
Walker's Low Catmint problems — and how to fix them
Walker's Low Catmint (Nepeta × faassenii 'Walker's Low') 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.
Flopping after first bloom
Stems sprawl after peak flowering in early summer. Cut the whole plant back to 10–15 cm immediately after bloom to stimulate fresh, upright regrowth and a strong second flush.
Powdery mildew
White fungal coating occurs in humid, crowded conditions. Space plants at least 60 cm apart, improve airflow, and avoid overhead watering. Rarely severe enough to require fungicide.
Cats rolling and crushing plants
Cats are attracted to all Nepeta. Protect young transplants with wire cloches until established. Older, woody-based plants are more resilient to feline attention.
Prevent walker's low catmint problems before they start
Most walker's low catmint issues are care-mismatch, not bad luck. Dial in the basics:
Walker's Low Catmint problems — FAQ
Why is my walker's low catmint flopping after first bloom?
Stems sprawl after peak flowering in early summer. Cut the whole plant back to 10–15 cm immediately after bloom to stimulate fresh, upright regrowth and a strong second flush.
Why is my walker's low catmint powdery mildew?
White fungal coating occurs in humid, crowded conditions. Space plants at least 60 cm apart, improve airflow, and avoid overhead watering. Rarely severe enough to require fungicide.
Why is my walker's low catmint cats rolling and crushing plants?
Cats are attracted to all Nepeta. Protect young transplants with wire cloches until established. Older, woody-based plants are more resilient to feline attention.