Lift and divide overgrown clumps of herbaceous perennials that were not split in the Autumn.
Overcrowded clumps of snowdrops and winter aconites can be lifted and divided after they have finished flowering.
This month is the last chance to prune your wisteria before it starts to grow.
Coppice Cornus and Salix to stimulate colourful young stems for next winter.
Many ornamental grasses can be trimmed back now. Deciduous grasses are cut down to 8-10cm from ground level, whereas with evergreen ones, the dead leaves can just be pulled out.
Give your borders and pots a general purpose fertiliser, and hoe and mulch borders. Hardy annuals such as Cornflower, Nigella and Californian poppies, can be sown directly at the end of the month.
Protect blossoms of apricots, peaches and nectarines from late frosts by covering with fleece. Sow lettuce, rocket, carrots, peas and early potatoes outside when the soil has warmed up. Sow parsnips now, as they are erratic germinators, sow them in clusters of 3 or 4 seeds, 15cm apart.
Gooseberries and currants can be pruned now as the sap is beginning to rise, so the cuts will heal faster.
If there are bare patches in the lawn, now is a good time to overseed areas. First, break up the soil surface with a fork and rake it to make a reasonable seed bed. Sow the grass seed 10-15g per square meter and lightly rake it in. Cover with a net if you have problems with birds. Water if no rain is forcast within two to three days.