Black salsify (Scorzonera hispanica) is grown for its long black root, which has a flavour reminiscent of oysters. Here are the germination and growing instructions.
When to sow
Sow from March to May, directly in the final spot; the root does not transplant well.
Planting depth
Plant 1–1.5 cm deep in deep, loose, stone-free soil (pH 6–6.8) so the roots grow straight. Thin to 10–15 cm apart.
Germination temperature
Ideally 15–20°C (at least 7°C). Germination takes 10–20 days.
Watering
Water lightly and regularly, as soon as the soil surface dries.
Light and harvest
It needs full sun. The roots are ready in 120–150 days, from autumn onwards.
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