Agastache Giant Hyssop White Agastache Mexicana is a herbaceous perennial. Agastache Giant Hyssop White seeds can be started indoors, and also commonly called Mexican Giant Hyssop, this plant is related to mints and catnip. This variety of Agastache Mexicana features gray-green, lemon scented foliage and produces long spikes of whorled white flowers that are spectacularly attractive to bees, butterflies, hummingbirds and other beneficial garden insects.
Agastache Giant Hyssop White is a great addition to the butterfly and hummingbird garden, and it makes an excellent companion to other late blooming perennials. Agastache Mexicana seeds germinate quickly, and Giant Hyssop is intolerant of wet environment but the plant tolerates most soil conditions, heat and drought. Mexican Giant Hyssop makes a superb cut flower.
Height: 32 Inches
Bloom Season: Summer/Fall
Environment: Sun/Partial Shade
Soil Type: Dry/Moist well-drained, pH 5.8 - 7.2
USDA Zones: 5-10
Sow Indoors: Winter (6-8 weeks before last frost)
Sow Outdoors: Spring
Seed Depth: 1/16 Inch
Germination Time: 14-21 Days