Agastache
Information on How to Grow Hyssop
The common names for the Hardy perennial Agastache include Hyssop and mosquito plant. It typically flowers in the Summer.
Description of Hyssop
Agastache are large plants that can grow between 60 and 180 cm in height. Hyssop may have spikes of blue, green or purple flowers. These plants are beautiful as part of a wild-flower garden.
Agastache Apricot sprite photograph by Anniesannuals.
How to grow Hyssop
It is best to sow Mosquito plant seeds just below the soil surface, with a spacing of 25 to 30cm, in the autumn. Hyssop prefers lightly shaded or preferably full sunlight conditions. The soil should be quite rich and well drained. Hyssop requires between 30 and 90 days to germinate. When starting the plants off indoors it is best to sow them seven to eight weeks before planting outside, at a temperature of 13 degrees centigrade.
Caring for Hyssop in the garden
Hyssop should be fed with fertiliser once a year in the spring. Agastache generally take two years to come into bloom after initial planting, and should be replaced after two years of flowering for best results.