What's eating my agastache 'blue fortune'?

Agastache 'Blue Fortune' is exceptionally deer- and rabbit-resistant due to its anise-scented foliage. Aphids are the most common pest, colonising soft shoot tips. Leafhoppers can cause stippled foliage. Powdery mildew is more of a disease issue than pests. This aromatic perennial is generally one of the lowest-maintenance plants for pollinators.

Clusters of greenfly on new shoot tips and around flower buds; distorted growth and sticky honeydew. Spray with insecticidal soap or neem oil; strong water blast; encourage ladybirds and parasitic wasps.

Pale stippling or whitish mottling on upper leaf surfaces as the insects rasp leaf cells from beneath. Insecticidal soap spray targeting undersides of leaves; keep plants well-watered and healthy to aid recovery.

Occasional chewing damage to leaves from generalist moth caterpillars, though rarely a major problem on Agastache. Hand-pick caterpillars and egg masses; apply Bacillus thuringiensis (Bt) spray if numbers are high.