Monthly Gardening Advice – March

Monthly Gardening Advice – March



  • If the weather is mild, you may need to start mowing, remember to cut on the lawn mowers highest setting.
  • In late March apply a high nitrogen feed like Scotts ‘Lawn Builder’.
  • It’s a great time to sow a wildflower meadow.
  • Turf can be laid as long as the ground is not waterlogged or frozen. Work off planks of wood to avoid compacting soil, then leave undisturbed for a couple of weeks to allow the roots to establish – keep well watered.
  • Prepare seedbeds for new lawns to be seeded later in spring but only if the soil is not too wet.

Houseplant Care

  • Do not leave houseplants on windowsills behind curtains or blinds on frosty nights.
  • Many conservatory plants can be pruned in early spring. Shorten the stems of cestrum, brugmansia, and argyranthemum, also plumbago and passion flowers can be thinned.
  • Clean shiny- leaved plants with a damp cloth and spiky leaves with a soft brush.
  • Stand houseplants on trays of damp gravel or stones to give the plants extra humidity in centrally heated homes.

Jobs To Do In the Garden

  • Check that all your winter frost protection is securely in place.
  • Lift and divide larger clumps of perennials.
  • Top dress containers with fresh compost.
  • Cut back cornus (dogwood), salix (willow), buddleja (butterfly bush), lavatera, perovskia, hardy fuchsia and other summer or late summer flowering deciduous shrubs.
  • Plant deciduous hedging, roses, shrubs and trees.
  • Prune spring flowering shrubs once they have finished flowering.
  • Sweet peas can be sown outside this month.
  • Protect new shoots from slugs.

Jobs To Do In The Greenhouse

  • Check that heaters are working.
  • Remember to ventilate your greenhouse on sunny days.
  • Start cannas into growth by potting up water sparingly and place in a light position, increase watering as growth develops.
  • Begonia, gloxinia, dahlia and achimenes tubers can all be planted in trays this month before potting on once growth appears.
  • Prick out seedlings before they get too crowded.
  • Top dress citrus with fresh compost.
  • Look out for plug plants, which are now ready for sale. Grow on in the greenhouse, while avoiding the need for propagation facilities and labour.
  • Soft tip fuchsia cuttings can be taken this month.
  • Greenhouse bulbs that have finished flowering can be given a high potash feed (Tomorite) to help build the bulb up for next season.

The Vegetable Garden

  • Chit early and main-crop potatoes.
  • Prepare vegetable seed beds, and sow some vegetables under glass.
  • Net fruit and vegetable plants to keep birds off.
  • Plant onions, shallots and early potatoes.
  • Prune currants, gooseberries and autumn raspberries especially new bush or cordons
  • Protect brassicas from pigeons.
  • Finish planting bare-root fruit trees and bushes.
  • Prepare beds and supports for peas and runner beans
  • Continue to harvest parsnips, brussels, sprouting broccoli, winter salad, spring cauliflower and leeks.
  • Prepare polythene protection for peach leaf curl on peaches and nectarines.
  • Sow peppers, tomatoes, cucumber, salad and aubergines inside.

Wildlife & Bird Care

  • Put out food for the hungry birds don’t forget to put some on the ground as well as the bird table.
  • Put up nesting boxes for birds.
  • Keep birdbaths topped up with water.
  • Clean birdbaths and tables
  • Put out log and/ or rock piles to create areas of shelter for wildlife
  • Plan and dig wildlife pond
  • Hang a bee-nesting box
  • Sow or plant a wildflower meadow
  • Introduce frogspawn to your pond
  • Put out hedgehog and badger food.

Any Other Advice

  • Forced indoor bulbs that were inside during the winter period, which have finished flowering can be planted in the garden.
  • It’s a great time to install a water butt and collect your own rainwater.

Enjoy your garden and don’t forget to take time and stop and stare at the wonder of nature. Happy gardening!