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Giant Hyssop

Agastache Hybrids

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Overview

The Giant Hyssop (Agastache hybrids) is a hardy perennial favored for its striking spires of tubular flowers, attracting hummingbirds and butterflies. These fragrant, herbaceous plants typically reach heights of 2 to 5 feet and thrive in well-drained soil. Flower colors range from purples to pinks and whites, blooming from midsummer to fall. Space them about 1 to 3 feet apart in full sun to moderate shade for a vibrant, aromatic display.

Sun Full, HalfWater LowZones 5–9Type Perennial
Giant Hyssop (Agastache Hybrids) — creating a cohesive and dynamic garden plot; these fragrant, herbaceous plants typically reach heights of 2 to 5, image 105

Culture

Sun
Full, Half
Water
Low
USDA zones
5–9

Shape & size

Classification

Type
Perennial
Family
Lamiaceae

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Photos (126)

Giant Hyssop (Agastache Hybrids) — with a spread of 1 to 3 feet; perennial with blue and lavender and orange and pink and purple and red and violet, image 62
Giant Hyssop (Agastache Hybrids) — Known for its ease of cultivation and long blooming period; the Giant Hyssop (Agastache hybrids) stands out in, image 90
Giant Hyssop (Agastache Hybrids) — though deadheading can promote additional blooming and prevent self-seeding if desired
Giant Hyssop (Agastache Hybrids) — this plant works exceptionally well in borders; though deadheading can promote additional blooming and prevent, image 73
Giant Hyssop (Agastache Hybrids) — Minimal maintenance is required; known for its ease of cultivation and long blooming period, image 75
Giant Hyssop (Agastache Hybrids) — with a spread of 1 to 3 feet
Giant Hyssop (Agastache Hybrids) — slow-release fertilizer in the spring to encourage vigorous growth.<br><br>Giant Hyssop's aromatic foliage, image 96
Giant Hyssop (Agastache Hybrids) — Due to its vertical stature; slow-release fertilizer in the spring to encourage vigorous growth.<br><br>Giant, image 126
Giant Hyssop (Agastache Hybrids) — creating a cohesive and dynamic garden plot
Giant Hyssop (Agastache Hybrids) — The Giant Hyssop (Agastache hybrids) stands out in the landscape with its upright; it prefers well-drained soils and
Giant Hyssop (Agastache Hybrids) — Minimal maintenance is required; known for its ease of cultivation and long blooming period, image 102
Giant Hyssop (Agastache Hybrids) — reminiscent of mint or anise when crushed; the Giant Hyssop (Agastache hybrids) is a hardy perennial favored for, image 70
Giant Hyssop (Agastache Hybrids) — The Giant Hyssop (Agastache hybrids) stands out in the landscape with its upright
Giant Hyssop (Agastache Hybrids) — attracting hummingbirds and butterflies
Giant Hyssop (Agastache Hybrids) — providing a generous display that attracts hummingbirds
Giant Hyssop (Agastache Hybrids) — Flower colors range from purples to pinks and whites, blooming from midsummer to fall; blue and lavender and orange and pink
Giant Hyssop (Agastache Hybrids) — with a light application of a balanced, image 41
Giant Hyssop (Agastache Hybrids) — Space them about 1 to 3 feet apart in full sun to moderate shade for a vibrant, aromatic display, image 113
Giant Hyssop (Agastache Hybrids) — perennial with blue and lavender and orange and pink and purple and red and violet and yellow blooms
Giant Hyssop (Agastache Hybrids) — Due to its vertical stature; slow-release fertilizer in the spring to encourage vigorous growth.<br><br>Giant Hyssop's
Giant Hyssop (Agastache Hybrids) — creating a cohesive and dynamic garden plot; these fragrant, herbaceous plants typically reach heights of 2 to 5 feet and
Giant Hyssop (Agastache Hybrids) — For landscape design purposes, image 77
Giant Hyssop (Agastache Hybrids) — The Giant Hyssop (Agastache hybrids) is a hardy perennial favored for its striking spires of tubular flowers, image 109
Giant Hyssop (Agastache Hybrids) — this plant works exceptionally well in borders; though deadheading can promote additional blooming and prevent, image 100
Photographs by 12 contributors

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