Lettuce Merveille des 4 saisons: Sowing, planting and harvest calendar
How do you sow 'Merveille des 4 saisons' lettuce under cover?
Sow 'Merveille des 4 saisons' lettuce under cover at a time suited to your climate. A February or March start can work with enough light. Aim for germination between 10 and 18 °C. The name does not guarantee year-round growth in a cold garden or during intense heat.
Fill clean pots or a module tray with drainage holes using fine, free-draining seed compost, preferably peat-free. Moisten the compost, sow thinly and cover with a thin layer. Firm lightly and water gently so the seeds stay in place. Label the sowing with 'Merveille des 4 saisons' and the date.
Keep containers in good light and ventilate the growing space. Check moisture daily without leaving water in a saucer. After emergence, provide enough light to produce short, sturdy plants. If seedlings are crowded, move them gently into individual containers once they are large enough to handle.
Around four true leaves and a rootball that holds together are useful signs for preparing to plant out. The first leaves alone are not enough for moving plants outside. Gradually acclimatise them to wind, sunshine and outdoor temperatures, and check the weather before planting.
How do you sow 'Merveille des 4 saisons' lettuce outdoors?
How do you plant 'Merveille des 4 saisons' lettuce?
How to care for this plant
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Thin seedlings
If your lettuces are crowded and you want whole heads, thin gradually to about 15–30 cm according to the variety. Keep closer spacing for promptly harvested baby leaves. In a module, select the seedling you want to keep.
How do you harvest 'Merveille des 4 saisons' lettuce?
