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Sunset Hyssop Agastache rupestris

Phonetic Spelling
a-GAH-sta-kee ru-PE-stris
Description

Sunset hyssop is a perennial in the mint (Lamiaceae) family that is native to the southwest USA and is found on cool mountain slopes. It will grow 1-3 feet tall and 1-1.5 feet wide. The Genus name comes from the Greek words agan meaning "very much" and stachys meaning "ear of wheat" in reference to the flower spikes. The species name, rupestris, means living on a cliff. The common name sunset hyssop refers to the color of the flowers.

The long-lasting blooms on this compact plant attract hummingbirds, bees and butterflies. Its foliage is licorice-scented, which is great to deter deer. This plant, once established, is drought tolerant. The bloom season extends from summer into fall. Sunset hyssop does best in a drier climate and may have problems in high-humidity areas.

Plant in sandy to rocky soils with very good drainage or in a pot or raised bed. This plant will not survive the winter in wet heavy soils. Deadheading the plant after the initial blooms will often encourage a fall blooming period.

Insects, Diseases, and Other Plant Problems: No significant problems but will develop root rot in too-wet soils. Watch for rust, powdery mildew and leaf spots.

 

 

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#hummingbird friendly#drought tolerant#orange flowers#fall interest#long-lasting flowers#summer flowers#deer resistant#herbaceous perennials#rock garden#poor soils tolerant#sandy soils tolerant#butterfly friendly#bee friendly#perennial
 
Cultivars / Varieties:
Tags:
#hummingbird friendly#drought tolerant#orange flowers#fall interest#long-lasting flowers#summer flowers#deer resistant#herbaceous perennials#rock garden#poor soils tolerant#sandy soils tolerant#butterfly friendly#bee friendly#perennial
  • Attributes:
    Genus:
    Agastache
    Species:
    rupestris
    Family:
    Lamiaceae
    Life Cycle:
    Perennial
    Recommended Propagation Strategy:
    Seed
    Country Or Region Of Origin:
    SW USA
    Distribution:
    AZ & NM on cool mountain slopes 5000' to 7000' elevation
    Wildlife Value:
    Attracts hummingbirds, bees and butterflies; deters deer
    Play Value:
    Wildlife Food Source
    Particularly Resistant To (Insects/Diseases/Other Problems):
    deer, drought
    Dimensions:
    Height: 1 ft. 6 in. - 3 ft. 0 in.
    Width: 1 ft. 0 in. - 1 ft. 6 in.
  • Whole Plant Traits:
    Plant Type:
    Herbaceous Perennial
    Perennial
    Habit/Form:
    Clumping
    Erect
    Growth Rate:
    Medium
    Maintenance:
    Low
    Texture:
    Fine
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Texture:
    Sand
    Shallow Rocky
    Soil pH:
    Neutral (6.0-8.0)
    Soil Drainage:
    Good Drainage
    Available Space To Plant:
    12 inches-3 feet
    NC Region:
    Mountains
    Piedmont
    USDA Plant Hardiness Zone:
    5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
  • Fruit:
    Display/Harvest Time:
    Fall
    Fruit Type:
    Capsule
    Fruit Length:
    < 1 inch
    Fruit Width:
    < 1 inch
    Fruit Description:
    Capsule with 4 nutlets
  • Flowers:
    Flower Color:
    Gold/Yellow
    Orange
    Purple/Lavender
    Flower Inflorescence:
    Spike
    Flower Value To Gardener:
    Long-lasting
    Flower Bloom Time:
    Fall
    Summer
    Flower Shape:
    Tubular
    Flower Petals:
    2-3 rays/petals
    Flower Size:
    < 1 inch
    Flower Description:
    Burnt orange tubular 2-lipped flowers with purplish calyxes on a 10-12 inch spike. Blooms all summer. Deadhead for a fall repeat bloom.
  • Leaves:
    Leaf Color:
    Gray/Silver
    Green
    Leaf Feel:
    Smooth
    Leaf Value To Gardener:
    Fragrant
    Leaf Type:
    Simple
    Leaf Arrangement:
    Opposite
    Leaf Shape:
    Lanceolate
    Linear
    Leaf Margin:
    Entire
    Hairs Present:
    No
    Leaf Length:
    1-3 inches
    Leaf Width:
    < 1 inch
    Leaf Description:
    Leaves are narrow, gray-green, lance to linear shape with a licorice scent. They are up to 2 inches long and narrow.
  • Stem:
    Stem Color:
    Green
    Stem Is Aromatic:
    No
    Stem Cross Section:
    Square
    Stem Surface:
    Smooth (glabrous)
    Stem Description:
    Square green stems
  • Landscape:
    Landscape Location:
    Container
    Naturalized Area
    Slope/Bank
    Landscape Theme:
    Butterfly Garden
    Pollinator Garden
    Rock Garden
    Design Feature:
    Border
    Small groups
    Attracts:
    Bees
    Butterflies
    Hummingbirds
    Resistance To Challenges:
    Deer
    Drought