What to do in March

Lift divide and re-plant snowdrops as the foliage starts yellowing.
Cover areas of soil with black plastic or black landscape fabric to warm it up before sowing seeds and planting out
Complete pruning Hybrid T and Floribunda roses.
Remove the top 1 to 2 inches of old compost from permanent pot plants and top dress with fresh compost
Start winter store dahlias into active growth. Hot firm healthy looking tubers into 3 L pots of multipurpose compost. Water sparingly and keep free of frost.
Sprout or chit seed potatoes indoors before planting.
Prune established blueberries now while the rounded fat fruit buds are distinguishable from the smaller flat leaf buds. Blueberries fruit on the previous years growth so prune up to a quarter of the older stems each year to promote fruitful young shoots.
To encourage healthy new growth tidy strawberry plants now remove dead and damaged or diseased leaves and old runners.
Plant soft neck garlic cultivars such as Picardy Wight and Solent Wight
Prune the colourful stems of shrub Cornus and Salix this month Cut all stems back to 2 to 3 inches from the ground or to last year stubs. This process should be done every year.
Cut back Epimedium leaves before the flowers appear.