Try 15 litres for those too. Tomato feed is balanced to promote flowers and fruit. You want a higher nitrogen content feed for foliage.
It's a case of reading the labels and, if you can, choosing organic rather than inorganic as these are better for soil organisms. Do not exceed the concentrations indicated on the packet or bottle. Do not feed after mid-July or you'll promote soft, sappy new growth that hasn't time to mature and ripen before the frosts arrive.
Vendée - 20kms from Atlantic coast.
"The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
Posts
Which size is ideal for plants planted in border?
I have 4 of them
https://forum.gardenersworld.com/discussion/1052474/help-and-advise-needed/p1
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
So the two tress 15l once a week
How much for the buxus?
Should I use tomato feed?
How much and how often
I'm a total novice!!
It's a case of reading the labels and, if you can, choosing organic rather than inorganic as these are better for soil organisms. Do not exceed the concentrations indicated on the packet or bottle. Do not feed after mid-July or you'll promote soft, sappy new growth that hasn't time to mature and ripen before the frosts arrive.