Sunset Hyssop

Agastache rupestris

Plant Details:

Plant Type: Perennial
Plant Family: Lamiaceae
Plant Description: Upright growing fragrant perennial with a wispy look. Long-lasting bright orange-red blooms begin in mid-summer and last until the first freeze. Gray-green foliage emits a distinct root beer or licorice fragrance depending on your nose. Attractive to hummingbirds. Very drought tolerant but will use the water if it is available.

Maintenance:

Maintenance Type: Perennial - Herbaceous
Plant Care: Perennial - Herbaceous (soft-stemmed plants that die back in winter and regrow in spring): Remove spent blooms to promote rebloom later. Some plants tend to flop over after the first bloom and attempt to regrow from the base; in these cases, the old stems can be cut away in summer. As plants become dormant in the fall, remove dead leaves and stems.

Plant Attributes:

Mature Size: 36-42" tall x 18" wide
Utah Native: No
Plant Select: Yes
Pollinator Friendly: Yes
Localscapes: Foundation Plant, Perimeter Plant
Foliage Interest: No
Foliage Colors: Gray-green
Bloom Colors: Peach, Orange
Bloom Seasons: Late Summer
Bloom Period: Aug - Sep

Growing Conditions:

Hardiness Zone: 4 to 10
Light Requirement: Full Sun (6+ hrs sun), Part Shade (4-6 hrs morning sun), Part Sun (4-6 hrs afternoon sun)
Irrigation Requirement:     Low (1/2" every 10-14 days)
Salt Tolerant: Unknown
Deer Resistant: Yes

Garden Location:

  • Commercial Concepts
    • Garden Entrance
  • Neighborhood Landscapes
    • Prudent Perennials

Garden Staff Tips & Insights:

This Agastache, along with many others of its kind, is a short-lived perennial. Plan to replace every few years.
  • Spring
  • Summer
  • Fall
  • Winter