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The month of June is when you can really start to enjoy gardening outside. June brings the start of summer, which means warm weather, plenty of sunshine and new challenges for the budding gardener.

As pleasant as the June weather can be, it’s also a busy month for gardeners. It will become more important than ever to make sure that your plants have all of the water they need and as they continue to grow you will have to keep a sharper eye out for illnesses and weeds. The summer sun will also make your garden a haven for critters of all kinds, which will mean more pests invading your beds to eat your produce before you ever have a chance.

Luckily, there is no reason why you should have to take care of your garden on your own. An experienced local gardener will be able to provide valuable help and advice for making sure that your crop is as big as possible. If you are new to gardening, you may want to consider a garden planting service or even an ongoing garden maintenance service so that your plants will have all of the attention they need.

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What to sow/ plant outside

If you have been gardening over the last few months, then this is the time when you can really see the fruits (or veg) of your labour. Having said that, the warm June soil is ideal for some new planting, so be sure to make full use of any space which you have left in your garden!

However good the weather might be, you will need to pay very close attention to the planting or sowing instructions for your new plants. Again, if you are new to gardening then you may wish to speak to a local gardener about a garden planting service.

  • To sow: Beetroot, broccoli, carrot, chicory, coriander, dill, parsley, courgette, squash, kale, kohl rabi, pak choi, peas, radish, spinach, spring onions, swede, sweetcorn, chard, fennel, courgettes, runner beans.

  • To plant: Broccoli, brussel sprouts, cabbage, cauliflower, kale, leeks, celery, celeriac, cucumber, squash, pumpkin, tomato.
As well as planting new crops, this can also be an ideal time to transfer the healthy plants which you have been growing inside or in your greenhouse to a bed outside.

What to sow/ plant in a greenhouse/ polytunnel

Now that it’s getting warmer, you will need to be extra careful with your greenhouse. As useful as it is during the colder months, there is a real risk of greenhouses overheating during summer, which can be disastrous for the plants inside. 

To avoid this, remember to keep your greenhouse well ventilated and consider buying shade netting for particularly sunny days. You can also make sure your greenhouse keeps its humid atmosphere by watering the floor in the morning.

  • To sow: Cucumber, runner beans, cabbage

Jobs to do in June

June might be an active time for gardeners, but at least the weather is nice enough that you can enjoy working outside. These ideal conditions will make your garden a great place to be, not just for you but also for unwelcome critters and weeds, so you will need to keep on top of things if you want your greens to stay healthy.

  • It will be important to keep a close eye on your potatoes and to keep earthing them up as necessary. If any of the shoots have grown taller than 23cm, simply build up the soil around the stem until only 5cm is still visible.
  • If you have been growing garlic or onions, look out for any leaves that seem to be yellowing or dying - this means they’re ready to harvest!
  • There are dozens of pests to be looking out for in summer months. While slugs will still be a big problem, you should also be careful of aphids, which can eat and spread illnesses to your plants, as well as other flying insects such as carrot flies. Depending on the size of your patch, a protective mesh may be enough to keep flying insects away. However, if your problem is too large to handle then you may want to speak to a local pest controller.
  • Summer will bring temperature fluctuations, with wonderful sun in the day and cool air at night. Because of this, you will need to work to maintain the proper climate in your greenhouse. On scorching days you will need to keep it well ventilated, and you may also want to water the flooring in the morning to create the proper level of humidity. If your greenhouse is in an area without any cover, you should also consider buying shade netting for your younger plants.

  • If you have been growing soft fruits, such as currants and strawberries, then they will make tasty targets for birds. Consider buying fruit cages for your fruit plants to keep them away. Having said that, it can be useful to have certain birds in your garden, as they can help to keep slugs and other pests away.
  • You might have gotten used to only watering your plants sparingly, but that time is over. As the weather gets warmer you will need to work harder to keep your plants hydrated, so do your research, establish a watering routine and stick to it.
  • Now that the ground is fairly dry, you can finally start mowing your lawn again. The clippings will make a great addition to your compost bin! At the same time, you should also keep your grass well hydrated by watering it once or twice a week. In drought weather, let the grass blades grow longer than you usually would before cutting them.
  • While it might sound like a broken record by this point, you will still need to keep a close eye out for weeds. Remove any as soon as you see them, but be wary of using chemical weedkiller as it will likely harm your friendly greens as well. For more advice on how to get rid of weeds, read our handy guide.