Sunset Hyssop
Agastache rupestris
Sunset Hyssop (Agastache rupestris) is a perennial suited to the Colorado Front Range. It matures to about 24–36 in tall and 18–24 in wide, needs low water, and prefers full sun. Orange and lavender tubular flowers; very drought tolerant; hummingbird magnet.
low water24–36 in tall and 18–24 in wideXeric / water-wiseDeer-resistant
Photos



At a glance
- Botanical name
- Agastache rupestris
- Type
- Perennial
- Mature size
- 24–36 in tall and 18–24 in wide
- Water needs
- low water
- Sun
- full sun
- Colorado native
- No
- Foliage
- Deciduous
- Soil
- clay, loam, sandy
- Soil pH
- 6.5–8.0
- Hail tolerance
- high
- Wind tolerance
- high
- Salt tolerance
- moderate
- Bloom color
- orange, purple
- Bloom time
- mid summer, late summer
- Pollinator value
- high
- Good for
- slope, south wall
Planting & establishment
Deep-water first season to establish, then minimal water needed.
Frequently asked questions
- Is Sunset Hyssop good for the Colorado Front Range?
- Yes. Sunset Hyssop is included in the Front Range Plant Finder as a perennial suited to Colorado's Front Range.
- How big does Sunset Hyssop get?
- It matures to about 24–36 in tall and 18–24 in wide.
- How much water does Sunset Hyssop need?
- It needs low water once established.
- Is Sunset Hyssop native to Colorado?
- No — it is not a Colorado native, but it grows well on the Front Range.