Water the compost so that it's just moist and using your finger or a dibber, make a hole that's wide and deep enough to accommodate the new plant. Choose the strongest seedlings as weaker plants ...

To do this, hold seedlings carefully by their leaves and gently lever up with a dibber. Make a hole in a 7.5cm (3in) pot filled with compost and carefully lower in the seedling. Gently firm ...