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Top gardening jobs for June

Summer is here at last and it's a wonderful month to enjoy fresh veg from the garden and borders full of flowers

Top gardening jobs for June

The danger of frost will have passed in all areas, so it’s safe to plant tender flowers and veg outdoors. Keep them well watered while they settle in to their new homes.

After the hectic months of spring, the garden starts to settle into its summer routine in June, with mowing the lawn, watering, weeding and deadheading all regular jobs.

For in-depth advice about what to do in your garden every month, subscribe to Which? Gardening magazine for only £5 – either online or by calling 029 2267 0000.

1. Deadhead your roses

As the flowers naturally fade and begin to die, snap them off at the first leaf below them.

This will not only keep your plant looking tidy but will also encourage it to produce more blooms.

Doing it this way gave the shortest amount of time before more blooms followed in our trial for Which? Gardening magazine, where we test all sorts of gardening techniques.

Deadheading roses

2. Trim hedges

By now, many hedges will have soft, fuzzy new growth softening their outline and will be in need of a trim.

However, before you begin, check if there are any active bird’s nests in the hedge. This is very important as it’s illegal to disturb them. If you do find an active bird’s nest, then wait a month or so for them to leave before you trim the hedge.

Some stronger-growing hedges, such as leylandii, may need to be trimmed more than once during the season to keep them looking neat.

Watch our video guide to how to trim a hedge.

See how to buy the best hedge trimmer.

3. Mow the lawn regularly

  • Mowing the lawn once a week is the key to an easy life as then the grass will never get long and tufty, which just makes it harder to cut.
  • Keep your grass green for longer during dry weather by raising the height of the mower blades so it leaves the grass a bit taller. Cutting the grass super-short will put it under strain, and it will turn brown and dry.
  • Trim hard-to-cut grass around obstacles, such as a swing or bench, with a grass trimmer. Look for one recommended for trimming grass as a super-powerful one designed for cutting brambles will be hard to control for a neat finish.
  • To avoid your grass clippings turning into a slimy mess in the compost bin, mix in a spadeful of soil every time you add them.
  • Finally, give your lawn a feed as the spring feed will be running out.

Watch our video about how to cut the perfect lawn

Check out the top five best grass trimmers

Adjusting mower blades

4. Watch out for pests

Pests are out in force this month as plants are growing strongly. Try not to spray them as you could inadvertently kill pollinating insects such as bees. As well as treating pests that are already there, you can also take measures now to prevent pests that can be a problem later in the year, such as plum moth.

Plum moth

Put up a pheromone trap now to prevent your maggots in your plums when you harvest them later in the summer.

Pear midge

This causes the baby fruits to drop now because it burrowed into them in spring. Pick up any fruits you find on the ground and dispose of them.

Lily beetle

The black grubs and red beetles can quickly strip the leaves and flowers of lilies, so remove any you find.


These sap-sucking insects will suddenly proliferate and can weaken your plants as well as possibly giving them a virus. Squash them as soon as you see them.

Visit the Which? Gardening helpdesk for advice on more than 300 topics.

Plum moth trap

5. Care for veg

  • Sow lettuce and beetroot in module trays so you have plants ready to fill the gap when you lift early crops, such as potatoes and spring onions.
  • Pull up spinach and coriander when they begin to flower (bolt), which they naturally do as the day length increases at this time of year. You can sow them again in August for crops from autumn to spring.
  • Remove the shoots that appear between the main stem of tomato plants and their leaves (sideshoots). Doing this will channel the plant’s energy into making flowers and fruit.
  • Water veg as needed. Rather than doing it every day, wait until the surface looks dry and then give a decent amount.

Watch our video guide to veg-growing jobs for June.


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