Anise hyssop
Agastache foeniculum
Also called Agastache and Liquorice mint
Garden plant · Herbs, veg & fruitIt is short-lived — three or four years — and it seeds itself, which is how it keeps going. Leave a few heads on in autumn and you never have to buy it again.
Care at a glance
- Ease
- Easy
- Water
- Once a weekWater the ground, then leave it — water at the base and then leave it — these want to dry out between drinks.
- Light
- Full sun
- Feed
- Not needed
- Humidity
- Low
- Hardiness
- Half-hardy — a light frost RHS H3, to -5°C
- Size
- 0.75 m tall · 0.4 m across
- Lifecycle
- Perennial
- Origin
- North America
Is it safe for pets and people?
PetsNothing recorded against it
No animal-poison authority lists this plant either way.
PeopleNot checked yet
Nobody has checked this one against a source for us yet, so treat it as unknown rather than safe.
Checked against ASPCA and RHS on 2026-08-04. Where a source says nothing, we say nothing.
A guide, not veterinary or medical advice. If a pet or a person has eaten a plant and you are worried, call your vet or doctor now — don’t wait for signs to appear. Spotted a mistake? Tell us.