Both kinds are hungry plants and deserve a bucketful of rich compost each.
Times, Sunday Times
Slap on a rich compost and fertiliser around the stems.
Times, Sunday Times
Repot them in rich compost and add extra bonemeal.
Times, Sunday Times
Give them a mulch of rich compost, especially on drier soils.
Times, Sunday Times
She prefers the shade, and can turn 330 litres into rich compost in 4-6 months.
Times, Sunday Times