Gardening Jobs For June


It’s getting warmer and everything seems to be putting a spurt on.
Fill in those final gaps in time for high-season and full production. Among others you should be harvesting the first lettuces, new potatoes and the first Peas.

Flower Garden

  • Continue planting out bedding plants
  • Continue sowing biennials
  • Sow perennials
  • Lift and divide bearded irises and primulas after flowering
  • Continue training sweet peas
  • Move chrysanthemums outside
  • Stake tall growing flowers
  • Take cuttings from pinks

~ How To Sow And Grow Sweet Peas ~


  • Cut back or deadhead spent flowers
  • Keep baskets and patio pots watered
  • Spray roses to protect them from pests and diseases
  • Cut the foliage of daffodils and tulips down to the ground
  • Trim box topiary and formal edging to keep it neat and tidy
  • Take cuttings of non-flowering new shoots from shrubs and pot them up in gritty compost
  • Rub greenfly off rose buds, or apply a soap-based spray
  • Lightly trim broom and genista after flowering to keep plants in shape
  • Water newly planted trees and shrubs if conditions turn hot and dry
  • Tidy up rock gardens, trimming off faded blooms, digging out weeds and replenishing mulches of grit
  • Keep a few bedding plants in reserve to plug gaps where disasters strike

In the greenhouse

  • Tie greenhouse tomatoes to their supports as they grow
  • Feed plants with full-strength fertiliser solution once a week, or apply a more diluted feed every few days
  • Apply shading paint or put up shade netting or blinds
  • Open doors and vents daily, and damp down the floor every morning
  • Be on the lookout for pests, including whitefly and red spider mite, and treat at once with a suitable spray or biological control
  • Pot up rooted cuttings
  • Pinch out the tips of cucumber side-shoots two leaves beyond a female flower
  • Check potted plants every day, watering if required
  • Pinch out side-shoots of tomato plants

Veggie Garden

  • Plant out curcubits (Pumpkins, Courgettes, Squash, Gherkins etc)
  • Plant out Sweetcorn
  • Start feeding Tomatoes with high potash feed once the first truss of flowers has set
  • Snap off Onion flowers if they appear
  • Pinch out the growing tips of Broad beans once the pods start to form to discourage blackfly
  • Sow more Lettuce, Radish, Spring onion, Salad leaves and Coriander
    Water Peas and Potatoes
  • Stake cutting flowers that will need support (such as Gladioli)
  • Tie in Runner Beans as they grow
  • Sow Fennel in situ

General advice

  • Add lawn cuttings to the compost heap, or use them to mulch around fruit trees
  • Mow and edge your lawn
  • Tie stems of tall perennials to supports
  • Feed houseplants every week with a liquid fertiliser
  • Clean out filters of pond pumps to get rid of any debris
  • Run a ‘seeping hose’ – a hose with holes in – through dry shaded borders or along the base of hedges so they can be watered weekly in dry weather
  • Treat lawn weeds and moss if necessary