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  • Agastache 'Astello Indigo' Plant - Streambank Gardens
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Agastache 'Astello Indigo' Plants

Agastache 'Astello Indigo', a brilliant agastache, took home the 2012 Fleuroselect Gold Medal for its outstanding garden performance.  The lighter blue flowers burst out of indigo flowering bracts for a unique color contrast.  Tall columnar blooming spikes are borne on strong, square stems for a long period in summer.  The foliage is a rich green, slightly serrate, and deliciously licorice scented.  There is no browning to the bracts and after the flowers fade the blooming columns still look attractive.  In the fall the leaves turn gold and ripe flower heads turn amber.  Songbirds like goldfinch, sparrow, tuft titmouse, and black-capped chickadees feast on the seeds.  Easily our favorite blue agastache and that is also a consensus of the many butterflies and pollinators that it attracts.  A super easy perennial that exhibits drought tolerance one year after transplanting.
Mature Plant Size: 36" Tall, 24" Spread
Bloom Time: June - October
Light Exposure: Full Sun 
Soil Type/pH: Well-drained/6.0-7.5 
Hardiness Zones: 5-9
Fertilizer: If using compost apply an 1" at planting time and side dress annually in late fall or early spring.  If using a granular fertilizer (we recommend organic formulations) apply an all-purpose formula in early spring annually.  It is only recommended to use liquid fertilizers when the growth is slow.
Container Size: 4.5" Pot
Regular price $ 10.95 USD
Regular price Sale price $ 10.95 USD
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