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How to sow half-hardy annuals


Half an hour of seed sowing in early spring is time well spent. Come summer you'll have an abundant display of half-hardy annuals for the price of a few packets of seed. Start your half-hardy annuals in the greenhouse or on a sunny windowsill, then acclimatise your plants to life outdoors before planting out in their final position.

How to do it


Fill a tray with seed compost, then sow a tiny pinch of seeds in each cell. Cover with vermiculite, water and place the tray in a propagator in a warm spot.


Once seeds have sprouted, wait until two pairs of leaves form. Transplant each seedling into a 7cm pot filled with sieved multi-purpose compost.


Water well after transplanting and keep the pots in a warm, bright place. Avoid exposure to bright sunlight, which can scorch the young leaves.


When all risk of frost has passed, move the plants to a cold frame or patio, bringing them in at night. After a week you can plant them outside.

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