Giant Hyssop Blue – Seeds (Agastache mexicana)

Giant Hyssop Blue (Agastache mexicana) is a striking perennial producing tall spikes of fragrant blue-purple flowers from summer to early autumn. Its aromatic foliage and nectar-rich blooms make it highly attractive to bees, butterflies, and hummingbirds, ensuring a lively pollinator-friendly garden. Easy to grow and drought-tolerant once established, it adds height, color, and fragrance to borders, herb gardens, and cottage-style beds.

Why Grow "Giant Hyssop Blue"

• Tall spikes of vibrant blue-purple flowers

• Aromatic foliage with a long flowering season

• Hardy, drought-tolerant, and easy to grow

• Excellent pollinator magnet

Key Features

• Type: Perennial (Agastache mexicana)

• Height: 60–100 cm

• Flowering: Summer to early autumn

• Position: Full sun

• Uses: Borders, herb gardens, cottage gardens, pollinator planting

Ideal For

• Adding vertical height and fragrance to borders

• Pollinator-friendly and wildlife gardens

• Cottage and herb garden displays

• Drought-tolerant, low-maintenance planting

Sowing & Growing

• Sow indoors: February–April in trays or pots

• Sow outdoors: April–May after frost

• Germination: 14–21 days at 18–22°C

• Thin seedlings 25–30 cm apart

• Prefers well-drained soil in full sun

• Water sparingly once established