Nepeta · Perennial
Powdery mildew: Ensure good air circulation by thinning crowded plants and avoid overhead watering.
Slugs and snails: Use physical barriers like copper tape or apply organic slug pellets around the base.
Root rot: Plant in well-drained soil and avoid waterlogging to prevent root suffocation.
Leggy growth: Cut back stems by half immediately after the main flowering period to encourage compact regrowth.
Vine weevil: Inspect pots regularly for adult beetles at dusk and use biological nematodes in soil.