Agastache Growing Guide

Agastache foeniculum

Crop Rotation Group

Miscellaneous ●

Soil

Average garden soil with excellent drainage.

Position

Full sun.

Frost tolerant

Agastache seedlings can be damaged by spring frost, but established plants may survive winter if the soil does not freeze.

Feeding

Encourage fast growth by mixing a balanced organic fertiliser into the soil before planting.

Spacing

Single Plants: 30cm (11") each way (minimum)
Rows: 30cm (11") with 30cm (11") row gap (minimum)

Sow and Plant

Set out stocky seedlings after risk of frost has passed. Small agastache plants grow slowly at first, and gain size and bloom in late summer.
Our Garden Planner can produce a personalised calendar of when to sow, plant and harvest for your area.

Notes

Agastache tolerates summer drought better than many other flowers. Popular cultivars like ‘Blue Fortune’ are hardy to -15C (5F ) when well established. Some varieties bloom rose-red or orange.

Harvesting

As flower spikes fade, trim them off with secateurs.

Planting and Harvesting Calendar

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Pests which Affect Agastache

Aphids (General)

Slug

Snail