Radish '18 Jours': Sowing, planting and harvest calendar
How do you sow '18 jours' radishes under cover?
Sow '18 jours' radishes directly in their final position under a cloche, in a tunnel or in a bright greenhouse. You can also use a container with drainage holes and enough depth for their half-long roots. This short crop does not need to start in small pots before transplanting: moving the young roots can disturb their development. Choose a cover that protects against cold without allowing excessive heat to build up.
Weed and prepare a fine surface in light soil that holds moisture without becoming waterlogged. Moisten it before sowing if necessary. Place seeds in short rows, about 3 to 5 cm apart. For this half-long variety, around 1.5–3 cm is a depth guide; check the instructions suited to your seeds. Cover with fine soil, press gently and water with a soft spray.
Maintain even moisture during emergence and root swelling. Ventilate whenever the covered space warms up and check containers more often, since they dry rapidly. Thin overcrowded patches early without transplanting the removed seedlings. Look at young leaves and watch for slug damage. The variety's name indicates earliness, but harvesting depends on actual development, light and temperature.
How do you sow '18 jours' radishes outdoors?
How to care for this plant
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Thin seedlings
If emerged radishes are already crowded, remove the weakest. Follow packet spacing: winter radishes need more room.
How do you harvest '18 jours' radishes?
