Agastache foeniculum - Anise Hyssop

Agastache foeniculum, commonly known as Anise Hyssop, is a fragrant herbaceous perennial that produces upright spikes of small tubular flowers in lavender-blue to purple tones. The blooms are held above aromatic, anise-scented green foliage, creating a soft, vertical, and natural appearance in the garden. Blooming from midsummer into early fall, this plant adds colour, fragrance, texture, and excellent pollinator value to borders, herb gardens, cottage gardens, meadow plantings, or sunny perennial beds.

Thrives in well-drained soil with dry to medium moisture. Avoid planting in heavy, wet, or waterlogged conditions. Requires minimal maintenance once established and shows good heat and drought tolerance. Deadhead spent flower spikes to encourage prolonged flowering and maintain a tidy appearance, or leave seed heads for winter interest and wildlife value. Pairs well with echinacea, rudbeckia, monarda, salvia, and ornamental grasses for a colourful, wildlife-friendly garden display. Attracts bees, butterflies, hummingbirds, and other beneficial pollinators. Generally avoided by deer and rabbits. Excellent for sunny borders, herb gardens, pollinator gardens, cottage-style landscapes, meadow plantings, or naturalized areas. Agastache foeniculum is a dependable and aromatic native perennial that thrives in sunny gardens, adding lavender-blue flower spikes and fragrant foliage through the summer season. Its long bloom period, drought tolerance, and exceptional appeal to pollinators make it a valuable choice for low-maintenance and wildlife-friendly landscapes.

Sun Requirements:

Full Sun to Partial Shade. Performs best in full sun, but can tolerate light partial shade, especially in warmer climates.

Maximum Growth Height:

24–48 inches (60–120 cm), with a spread of about 18–24 inches (45–60 cm).

Bloom Month:

July to September. Blooms from midsummer into early fall, producing lavender-blue flower spikes that provide long-lasting seasonal colour and attract many beneficial pollinators.