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What to do in your garden this June

by Editor

Welcome to June – a fantastic month in the garden with flowers of all shapes, sizes and colours busting into bloom and (hopefully) the weather giving us lots of chances to get out and enjoy it, too.

As always, there’s lots to be done and plenty of gardening jobs to keep us busy as we look forward to a lovely summer ahead.

Here are a few ideas for your garden this month…

Get planting out!

Bedding plants in the garden with a covering of alpine grit on the soil

This year I’m trying out alpine grit to protect young plants from slugs.

Now, we’re pretty sure we’re safe from frosts… so you can go wild planting out all your lovely bedding plants! I’ve just planted out lots of dahlias, marigolds, foxgloves, delphiniums, osteospermum & more. The garden is still looking very green at this point as most of them aren’t flowering yet – but i’m expecting an utter riot of colour in a few weeks when they all get going!

Of course, the battle with slugs is at an all time high in the garden this month – and there’s nothing they love more than eating all your vulnerable young plants. I am trying everything – nematodes, grit, garlic spray, copper wire… and nothing seems to put them off! In my front garden, which seems even more overrun by molluscs, I’ve decided only to plant ‘slug tolerant’ plants. So far, the salvia ‘hot lips’, penstemon, hardy geranium and fuchsias all seem to be living up to that status… but unfortunately two others – ajuga and some other salvia varieties that my research suggested would survive – were eaten immediately. We live and learn…

If you’re growing vegetables, you are now safe to plant them into their final positions. Don’t forget that, for a lot of edibles, the key is successional sowing, so you get a constant supply of things like lettuce and radish and not one big glut which you’ll never be able to eat all of!

Pinch out sideshoots on your tomatoes

Don’t let your tomato plants run away with themselves – too many leaves and branches for it to support will leave it with less energy to concentrate on producing lots of lovely fruit. When you see side shoots like these appear (in between the main stem and an already established branch), just pinch them off (literally, use your fingernails to snip them off. If they’ve got a bit bigger, then use sharp garden scissors). It’ll leave you with a more manageable plant and better tomatoes!

Stake tall plants – before they need the help!

Young cosmos plants in the garden growing with support from a small cane stake

These cosmos plants will grow to be about 120cm tall, so I’m giving them a helping hand with a small cane to support them.

If you’re growing tall plants like cosmos and sunflowers, which are likely to need some help from a stake in the coming weeks or months, don’t leave it too late. Give them a helping hand from a stake support now to avoid the heartbreak of snapped stems when an unexpectedly windy day sneaks up on us!

When using a cane to stake a plant always make sure you cap it with something to reduce the risk that you’ll poke your eye out on it when distracted by weeding or some other task. Use caps like the ones pictured above – or just recycle old yoghurt pots to do the job just as well.

Prune back large Camellias

If your Camellias have finished flowering and the bush has got just a little bit too big, now is the perfect time to prune them back for size. You can also hard prune Rhododendrons and Azaleas when they finish flowering if they’ve also become a bit too big for their space. At first they may look a little bare but in a few months you’ll see the signs of regrowth.

Keep earthing up those potatoes

Potatoes in need of earthing

If you’re growing potatoes, make sure you keep ‘earthing them’ – basically topping up the soil to keep covering over any green shoots that start to appear. You do this because you want to stop too much light getting into the plants – because that could turn your potatoes green and even poisonous! You can wait until the shoots are about 23cm tall, then give them a good covering with soil or another light blocking material.

Mow the lawn regularly

Green grass in a lawn

At this time of year, the grass grows incredibly fast – especially after all the rain we’ve had lately. If you want to keep it neatly cut, you’ll need to mow it weekly or every two weeks. If you hate mowing the lawn but love nice neat grass, why not ask one of the local gardening companies in our Local Directory to do the honours for you?

Don’t panic if you spot an aphid invasion!

Collection of aphids on parsley plant

Take a close look at the stems of some of your plants – like roses and parsley (above) and you may find whole colonies of aphids coating them. It can be a bit alarming – but try not to overreact. Don’t forget, aphids are a good food source for helpful garden insects, like ladybirds. Before you reach for the pesticide, try simply rubbing them off with your fingers or just shaking them off onto the soil, where hopefully the good bugs will come along to feast on them.

At this time of year, when there are less predators about to control aphid numbers, it might seem as though you’re overrun. But if you let nature take its course, the abundance of these little green or black flies will actually attract ladybirds, ground beetles, hoverflies etc to your garden to patrol it all summer long. If you’re really worried about them damaging your plants, you can try an organic spray or even a biological control such as lacewing larvae.

Protect brassicas and onions from peckish pigeons

Netting tunnel protecting spring onions and lettuce in a container

Pigeons love to pull up your spring onions and munch on your broccoli and cauliflower. They’ll also make a beeline for your strawberries. Stop them eating everything you’re growing before you get a chance too by covering plants over with a fine netting or mesh like the one above.

Let the dead-heading begin!

Deadheading Iberis

This month is when deadheading gets added to the list of regular garden jobs – and it won’t stop until we get first frosts!

Deadheading – taking off the flower heads of plants as they fade, is a useful way to encourage plants to generate more flowers. It works for so many common garden plants – cosmos, dahlias, roses, snapdragons, geraniums, petunias… the list goes on! The very first plant I tend to deadhead in my garden is my white Iberis (above). This lovely little plant is a fantastic border filler – it’s low growing, spreads year on year, evergreen, and it tends to be the first thing in flower in early January/February, with its bright white flower spikes. Around now, the first flush of flowers have completely faded and you’re left with green spikes. I always cut these right back and within a few weeks, the Iberis is in full flower again. And it continues as a star of the garden for many months to come.

About the author:

My name is Gemma. I’m the editor of Lowton & Golborne News and a very keen but amateur gardener. I mainly enjoy growing flowers in my Golborne garden, but this year, with new raised beds, I’m also trying my hand at growing edibles, too. You can follow my garden on Instagram @gandtgarden.

What jobs will you be doing in the garden this month?

We’d love to hear from you in the comments below!

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