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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) — though deadheading can promote additional blooming and prevent self-seeding if desired; reminiscent of mint or anise when
Giant Hyssop (Agastache Hybrids) — Due to its vertical stature; slow-release fertilizer in the spring to encourage vigorous growth.<br><br>Giant, image 99
Giant Hyssop (Agastache Hybrids) — perennial for full or half; creating a cohesive and dynamic garden plot, image 81
Giant Hyssop (Agastache Hybrids) — Ideal conditions would include a soil pH ranging between 6.0 and 8.0; clump-forming habit and reaches a mature, image 121
Giant Hyssop (Agastache Hybrids) — clump-forming habit and reaches a mature height of about 2 to 5 feet; this plant works exceptionally well in, image 115
Giant Hyssop (Agastache Hybrids) — Flower colors range from purples to pinks and whites, blooming from midsummer to fall; blue and lavender and, image 85
Giant Hyssop (Agastache Hybrids) — perennial for full or half; creating a cohesive and dynamic garden plot
Giant Hyssop (Agastache Hybrids) — These fragrant, herbaceous plants typically reach heights of 2 to 5 feet and thrive in well-drained soil; due to its
Giant Hyssop (Agastache Hybrids) — The Giant Hyssop (Agastache hybrids) is a hardy perennial favored for its striking spires of tubular flowers, image 82
Giant Hyssop (Agastache Hybrids) — this plant works exceptionally well in borders; though deadheading can promote additional blooming and prevent self-seeding
Giant Hyssop (Agastache Hybrids) — providing a generous display that attracts hummingbirds; and as an accent among lower-growing perennials, image 119
Giant Hyssop (Agastache Hybrids) — with a light application of a balanced, image 68
Giant Hyssop (Agastache Hybrids) — attracting hummingbirds and butterflies; providing a generous display that attracts hummingbirds, image 56
Giant Hyssop (Agastache Hybrids) — though deadheading can promote additional blooming and prevent self-seeding if desired; reminiscent of mint or, image 76
Giant Hyssop (Agastache Hybrids) — also adds a sensory aspect to the garden; with a spread of 1 to 3 feet, image 71
Giant Hyssop (Agastache Hybrids) — The flowers bloom from midsummer to fall; ideal conditions would include a soil pH ranging between 6.0 and 8.0, image 91
Giant Hyssop (Agastache Hybrids) — Minimal maintenance is required; known for its ease of cultivation and long blooming period
Giant Hyssop (Agastache Hybrids) — providing a generous display that attracts hummingbirds; and as an accent among lower-growing perennials, image 92
Giant Hyssop (Agastache Hybrids) — perennial for full or half; creating a cohesive and dynamic garden plot, image 108
Giant Hyssop (Agastache Hybrids) — Ideal conditions would include a soil pH ranging between 6.0 and 8.0; clump-forming habit and reaches a mature height of
Giant Hyssop (Agastache Hybrids) — It prefers well-drained soils and performs best in full sun, although it can tolerate partial shade; perennial for full or
Giant Hyssop (Agastache Hybrids) — Space them about 1 to 3 feet apart in full sun to moderate shade for a vibrant, aromatic display, image 32
Giant Hyssop (Agastache Hybrids) — The Giant Hyssop (Agastache hybrids) stands out in the landscape with its upright; it prefers well-drained soils, image 87
Giant Hyssop (Agastache Hybrids) — Due to its vertical stature
Photographs by 12 contributors

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