Kitchen garden
- Sow peppers and chillies and glasshouse tomatoes and cucumbers at 21C. If your greenhouse is unheated wait until March.
- Force rhubarb by covering the crowns with straw and covering with a container to exclude light.
- Complete planting of bare-rooted fruit trees and bushes.
- Sow vegetables under cover for planting out under cloches next month.
- In mild areas sow broad beans, cabbage, carrots, parsnip, beetroot, radish, peas, spinach outside under cloches once weed seeds start to germinate.
- For blackcurrants prune out a quarter of the older growth at ground level. On gooseberries and red- and white currants shorten new growth by half and cut back side-shoots to two or three buds of the main stem.
- Plant spring garlic before the end of the month, 15cm apart and 2cm deep. Also plant onion and shallot sets.
- Prune autumn raspberries cutting all canes down to the ground.
- Order asparagus crowns and start preparing the beds for planting.
- Chit early seed potatoes in a light, cool but frost-free place. Stand in trays with the ‘eye’ end uppermost.
Glasshouse & Indoors
- Topdress citrus trees in pots with fresh potting compost and repot if necessary.
- Cut back overwintered Fuchsia, Pelargonium and Salvia to encourage new growth.
- Pot up cuttings of tender perennials such as verbena and Argyranthemum taken last summer.
- Prune conservatory climbers such as Plumbago, passionflower and jasmine.
- Pot up begonias and gloxinias, hollow side up.
- Sow gazania, hollyhocks, lobelia and other slow developing seedlings in propagators with additional heat.
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Ornamental garden
- Sow sweet peas in a cold frame. Pot on those sown in the autumn.
- Start dahlia tubers into growth in trays or individual pots in a light, warm place.
- Prune summer flowering deciduous shrubs such as buddleja that flower on current year’s growth.
- Prune hard back shrubs such as Salix and Cornus grown for their winter stems.
- Prune wisteria and Campsis by cutting back the sideshoots to two or three buds.
- Cut back late-summer flowering (Group 3) clematis to the lowest pair of strong buds about 20cm above ground level.
- Complete planting of deciduous trees, shrubs and hedging if the ground is workable.
Pest, disease and disorder watch
- Protect shoots of newly emerging herbaceous perennials from slugs and snails.
- Remove diseased leaves on overwintering glasshouse plants and check for aphids.
- Net fruit crops to reduce damage to buds by birds such as bullfinches.
- Check stored Canna and Dahlia for storage rots.
- Moles start to become active at this time of year.
- Remove pansy leaves showing signs of downy mildew or black spot.
- Fusarium patch or snow mould may be a problem in wet weather, particularly on lush turf.
Lawns and meadows
- Service mowers – sharpen blades, check cables of electric mowers.
- In mild areas lawns may need mowing. Set the blades high and use the grass collection box.
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