Jun, Jul, Aug
Roll down the sides of the potato sack and add a 25cm layer of compost to the bottom.
Lightly press the tubers on to the surface of the compost, ensuring the shoots, or 'eyes' are facing upwards.
Cover the tubers with a 5 - 10cm layer of compost and water well. When shoots appear, roll up the sides of the bag and add a further layer of compost to cover them. Keep repeating this until the bag is full.