Agastache: Sowing, planting and harvest calendar
How do you sow your agastaches under cover?
Check the species or variety on the packet before sowing your agastaches under cover. The genus includes different plants and hybrids that do not always come true from seed. Temperature, any preparation and germination speed depend on the batch. Emergence within one to three weeks is not guaranteed for every type.
Prepare pots or a tray with drainage holes and fine, free-draining seed compost. Moisten before distributing the small seeds thinly. Press gently and cover only as the packet specifies, often very lightly. Gentle warmth around 20°C suits some selections, but do not impose it on those requiring different preparation.
Keep compost moist without standing water and ventilate any lid. After emergence, provide plenty of light to avoid elongated, weak stems. Transplant young seedlings carefully when they are easy to handle. Accustom them gradually to outdoor conditions before planting and protect tender plants from frost. Keep the label: resistance to cold and winter wet differs, as does eventual growth in the border. Follow the instructions for the actual type you have rather than assuming every agastache behaves identically.
When and how should you sow agastache outdoors?
When and how should you plant agastache?
When does agastache bloom and how can you prolong flowering?
How do you trim agastache?
When and how should you harvest agastache for your intended use?
