Guides · Problems

Hosta Problems Guides

Diagnose what's eating, browning, or stunting your Hosta — slug damage, deer browse, vole feeding, HVX, and fungal issues.

Ammonia Spray for Slugs on Hostas: Does the "Ed Lawrence Solution" Work?

Household ammonia kills slugs it touches. The spring soil spray said to kill slug eggs rests on a lab dip test and forum posts. Dilutions, risks and what to do instead.

Published 2026-11-12
Are Hostas Poisonous? Dogs, Cats, Horses, Goats and Humans

Are hostas poisonous to dogs, cats, horses, goats or people? What the ASPCA lists, which compound is involved, the usual symptoms, and what to do if a pet or child eats a hosta — with an animal-by-animal table.

Published 2018-06-01
Hosta Diseases and Pests: Pictures, Symptoms, Crown Rot

Identify hosta diseases and pests by symptom: crown and petiole rot, anthracnose, Hosta Virus X, foliar nematodes, soft rot, slugs and deer — with a diagnosis table, a crown-rot action plan and tips for photographing a sick plant.

Published 2018-06-01

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