Indigo Agastache Agastache 'Astello Indigo'
Other Common Name(s):
- Phonetic Spelling
- ah-GAH-sta-kee
- Description
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Astello indigo is a hybrid Agastache in the Lamiaceae (mint) family. and grows vigorously to 20 inches tall in a compact clump.
The deep green leaves are arranged oppositely on square stems and smell a little like rootbeer when crushed. The upright spikes are fully covered with deep indigo-blue flowers that exude a fresh minty scent that attracts butterflies and bees
Plant in full to part sun in well-drained soils. It is drought and heat tolerant once established and the leaves are free of foliar diseases. As with all members of the Agastache genus, it is important not to plant them in clay and poorly drained soils. Winter wetness will do them in.
In colder climates, it can be grown as an annual. 'Astello Indigo' provides a long season of blooms and attracts many pollinators to the landscape.
Grow this plant in containers, a pollinator garden, and mass plantings. The flowers make beautiful additions fresh flower bouquets so consider adding this vertical plant to your borders or cottage garden.
Insects, Diseases, and Other Plant Problems: Crown rot in wet soils.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Tags:
- Cultivars / Varieties:
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Attributes:
- Genus:
- Agastache
- Family:
- Lamiaceae
- Life Cycle:
- Perennial
- Wildlife Value:
- Flowers attract butterflies, hummingbirds, birds, and bees.
- Play Value:
- Attracts Pollinators
- Wildlife Food Source
- Dimensions:
- Height: 0 ft. 6 in. - 1 ft. 8 in.
- Width: 1 ft. 2 in. - 1 ft. 8 in.
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Whole Plant Traits:
- Plant Type:
- Herbaceous Perennial
- Perennial
- Woody Plant Leaf Characteristics:
- Deciduous
- Habit/Form:
- Erect
- Growth Rate:
- Medium
- Maintenance:
- Low
- Texture:
- Medium
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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:
- Loam (Silt)
- Sand
- Soil pH:
- Alkaline (>8.0)
- Neutral (6.0-8.0)
- Soil Drainage:
- Good Drainage
- Occasionally Dry
- Available Space To Plant:
- Less than 12 inches
- 12 inches-3 feet
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
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Fruit:
- Fruit Type:
- Nut
- Fruit Description:
- Dry nutlet
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Flowers:
- Flower Color:
- Blue
- Purple/Lavender
- Flower Inflorescence:
- Spike
- Flower Value To Gardener:
- Fragrant
- Good Cut
- Good Dried
- Long Bloom Season
- Flower Bloom Time:
- Fall
- Summer
- Flower Shape:
- Lipped
- Tubular
- Flower Petals:
- 2-3 rays/petals
- Flower Size:
- < 1 inch
- Flower Description:
- Indigo blue flowers have a minty fragrance from summer through fall. Produces many small tubular blooms on tall spikes. Blooms are blue surrounded by deep purple bracts.
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Leaves:
- Woody Plant Leaf Characteristics:
- Deciduous
- Leaf Color:
- Green
- Leaf Value To Gardener:
- Fragrant
- Leaf Type:
- Simple
- Leaf Arrangement:
- Opposite
- Leaf Margin:
- Serrate
- Hairs Present:
- No
- Leaf Description:
- Bright green leaves are slightly serrated and have a rootbeer fragrance.
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Stem:
- Stem Color:
- Green
- Stem Is Aromatic:
- No
- Stem Cross Section:
- Square
- Stem Description:
- Strong square green stems
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Landscape:
- Landscape Location:
- Container
- Naturalized Area
- Landscape Theme:
- Butterfly Garden
- Cutting Garden
- Drought Tolerant Garden
- Pollinator Garden
- Design Feature:
- Border
- Mass Planting
- Attracts:
- Bees
- Butterflies
- Hummingbirds
- Pollinators
- Songbirds
- Resistance To Challenges:
- Deer
- Drought
- Rabbits
