Tuberous chervil: Sowing, planting and harvest calendar
When and how do you sow tuberous chervil outdoors?
Sow tuberous chervil directly in its final position in autumn, generally between October and December according to the packet. Winter cold prepares seed to emerge in spring. Use fresh seed because viability declines quickly. Do not replace sowing with planting roots intended for food.
For spring sowing, plan the cold period specified by the supplier. Stratification means keeping seeds in slightly moist sand in a closed container in the refrigerator for several weeks. Some recommendations start at three weeks; others require longer. Check moisture and signs of germination regularly. Keeping seed warm does not serve the same purpose.
Prepare light, moisture-retentive but freely draining soil with a fine surface. Mark rows around 20 to 25 cm apart. Sow thinly at the surface, press gently and cover only very lightly, up to about 0.5 cm according to the packet. Do not bury seeds 2 or 3 cm deep.
Water with a fine spray if needed and mark the rows. Autumn sowing may not emerge until spring, so do not disturb the area prematurely. Thin young plants to roughly 8 to 10 cm without pulling up neighbours. Keep the surface moist without standing water.
How do you establish a tuberous chervil crop?
When and how do you harvest tuberous chervil?
