Lavandula angustifolia 'Hidcote' · Shrub
Root rot (Phytophthora): Plant in free-draining soil with good air circulation and avoid overwatering during dry spells.
Rosemary beetle: Hand-pick adults and larvae regularly or apply a biological control like nematodes if infestations are severe.
Grey mould (Botrytis): Ensure good air circulation by pruning out crowded growth and avoid wetting foliage when watering.
Vine weevil: Apply biological nematodes to the soil in late summer and autumn to control root-feeding larvae.
Winter dieback: Avoid pruning in late autumn in wet regions and ensure plants are situated in well-drained, sunny positions.