Three-cornered garlic
How do you plant three-cornered garlic?
Check that the material really is Allium triquetrum. Three-cornered garlic has small bulbs and is not planted by dividing a head into cloves like culinary garlic. It can multiply strongly: plan a defined area and avoid introducing it into natural habitats.
Choose moisture-retentive but freely draining soil in sun or partial shade. Autumn is a usual time for dormant bulbs, adjusted to the supplied material and climate. Prepare a weed-free surface and plant outside frost or waterlogged conditions.
Use healthy bulbs without rot. Set the base downwards and the tip upwards, at the depth and spacing indicated by the supplier. For a leafy plant already growing in a pot, preserve its root ball and original level instead of pulling leaves off to recover the bulb.
Cover, firm gently and water if necessary. Watch moisture during establishment without saturation. Mark the boundaries of the area and look for new shoots. Avoid moving soil containing bulbs into other plots. Seasonal yellowing of the leaves does not mean the plant has disappeared; underground bulbs can remain after foliage dies back.
When does three-cornered garlic flower?