Giant White Hyssop
Agastache
Lovers of heat, these tough and drought-resistant Mint family relatives guarantee terminal spikes adorned with brightly colored, tubular flowers just about all summer long. Agastaches are easily grown in well-drained soil, and will bloom more profusely, over an even longer period of time, if the flowering stems are cut back midseason.
A luminous white-flowering form of the Korean species, this superb cultivar has been vegetatively propagated to assure its garden-worthy status. Purple-tinged bright green leaves plus upright steady stalks promote a slew of generous, 6 in. tall, bottlebrush-like spikes with long-blooming pearly flowers and green calyces. Valued by bees, moths, hummingbirds and chefs, ‘Alabaster’ survives wet winters, demands good drainage and favors yearly pruning, while brightening perennial borders and herb gardens as well as nectaries.
Blooms July–October
Size: 2' 0" – 3' 0" high x 18" – 2' 0" wide.
Zone 5/6.
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Other selections in this genus:
- Agastache aurantiaca ‘Apricot Sprite’
- Agastache aurantiaca ‘Apricot Sunrise’
- Agastache aurantiaca ‘Coronado TM’
- Agastache aurantiaca ‘Tango’
- Agastache x ‘Black Adder’
- Agastache ‘Blue Blazes’
- Agastache ‘Blue Boa’
- Agastache ‘Bolero’
- Agastache ‘Danish Delight’
- Agastache ‘Firebird’
- Agastache mexicana ‘Red Fortune’
- Agastache mexicana ‘Sangria’
- Agastache pallida x gosa ‘Globetrotter’
- Agastache ‘Pink Panther’
- Agastache ‘Purple Haze’
- Agastache ‘Rosy Giant’
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