Agastache cusickii
- Families: Lamiaceae Nepetoideae Mentheae
- English name: Cusick's giant-hyssop
- Plant ID : 14345
- Author : (Jesse More Greenman (1867-1951)) Amos Arthur Heller (1867-1944)
- Zone : California
- Biological type : plant
- Adult size (h x w) : 2,62f x 1,31f
- Sun exposure : full sun
- Evergreen : deciduous
- Growth : average
- Hardiness : -4°F
- Leaf color : dark green
- Flower color : purple
- Formerly of wild origin : yes
- Native : no
- In danger : no
- Edible : no
- Precipitation : > 900mm
- FrostResistance >-5°C : yes
- FrostResistance >-8°C : yes
- FrostResistance >-12°C : yes
