When the fruit on the first truss is pea size.
General Rules
-
Tomatoes under glass
-
Tomatoes outdoors
When the fruit on the second truss is pea size.
-
Peppers and Aubergines
When fruit is golf ball size.
-
Melon
When first fruit is swelling.
-
Courgettes, Marrows and Cucumbers
When first picking starts.
-
All root vegetables
Never. If the ground is correctly prepared.
-
Onions and Leeks
Never. If the ground is correctly prepared.
-
Onions and Leeks for exhibition
Never. If the ground is correctly prepared. However they respond to a feed of Nitrate of Soda or a general fertilizer if a burst of growth is needed.
-
Brassica
Never. If the ground is correctly prepared.