July Gardening Advice

July Gardening Advice

Whether it’s a tasty barbeque, a quiet read under a shady tree or forty winks in your favourite deckchair – now’s the time to be outside enjoying our green spaces. Your months of digging, sowing and planting have paid off. Flowers are blooming and crops are growing.

But before you ease into summer’s lazy days and balmy nights, there’s still jobs to be done if you want your garden to remain at its best for the rest of the season. So, apply the sun cream, don the hat and get out into the garden. Afterall, those long days won’t be here forever.

In the flower garden

Deadheading

With balmy days ahead, and water in short supply, both perennials and bedding plants will be keen to set seed. Therefore, to keep them at their best, ensure you prune regularly. This will encourage new growth, and promote wonderful blooms throughout the rest of summer.

BloomsNutrients in pots, containers and hanging baskets will quickly deplete, so give plants a weekly feed

Now’s the time to introduce a plant feed. Nutrients in pots, containers and hanging baskets will quickly deplete, so give them a weekly feed.

Perennials, such as lupins, penstemons and delphiniums, will have already bloomed. Cut their flowered stems back to the base of the plant, and you could be rewarded with a second flourish later in the season.

Roses

By now, a lot of rose varieties will have spent their first blooms. Deadhead and feed to encourage a second bloom in the coming weeks. For the one-time season bloomers, you may want to refrain from deadheading. Allow their hips to develop, as this will make a welcome attraction in the autumn months.

Bearded Iris

Bearded Irises can now be lifted and divided. When re-planting, ensure the rhizome is sat on the soil, half exposed. The warm sun will quickly help to establish them, and ensure they flower next season. You should cut all foliage down by two thirds to ensure the energy is going into the rhizome and is not wasted.

Watering

Install water butts to save water in JulyWith water at a premium, if you haven’t done so already, install water butts. They come in array of shapes and sizes, so no matter how small the space there’s always an opportunity to save water. At this time of year, crops and plants are crying out for a good drink. However, try to carry out this task either first thing in the morning, or at dusk. With less sun, water evaporation isn’t an issue, keeping your beds and borders hydrated for longer. Also, try to water at the base of plants as water droplets on the foliage could potentially burn your plant, or encourage mildew and other diseases. Also, ensure all pots, containers and hanging baskets are watered regularly, due to rising temperatures they made need watering twice a day.

Lawns

This time of year, your lawn will be seeing a lot of action. If there’s a drought, your lawn will be looking worse for wear. Fear not though, the first rainfall will soon return it to its luscious green state. But, if there’s not a drought, mow the lawn, keeping blades higher, as this will retain moisture. Also, consider giving your grass a regular feed.

Greenhouse

Temperatures in greenhouses this time of year will be high. Introduce shading to your glass roof maybe the solution to preventing young plants from being scorched. Ensure there’s a steady airflow, by keeping all doors and vents open. Water the floor daily, not only to reduce temperature but deter red spider mite.

Pick courgettes regularly and the plant will continue to grow new produce

On the veg patch

Harvesting

Beetroot, chard, salad leaves, courgettes, beans and peas are ready to be harvested. By picking legumes and courgettes regularly, the plant will continue to grow new produce. Letting these crops grow past their best can encourage pests, or send a signal to the plant to stop growing altogether.

Tomatoes

Once your plants have four or five trusses, pinch out the top of the plant. This will send the plant’s energy into the fruit, and not the foliage. Feed regularly, and continue to pinch-out all side shoots. Don’t let plants dry-out, or water irregularly, as this can encourage blossom end rot. Finally, remove any leaves beneath the first truss of tomatoes, as this will help circulation and prevent the build-up of pests and diseases.

Potatoes

Second earlies should now be ready for the dinner plate. If you’re not sure, wait until the plants have flowered, then have a little dig around in the soil to find your spuds. If they’re ready, it won’t take long for you to uncover them.

Dig up what you need, and leave the rest of the tubers to grow on, ensuring your continue to water weekly. Or if you’re hoping to use the potato plot to grow a new crop, dig them all up. Try to do it on a sunny day, and place your freshly dug potatoes on the plot surface for a few hours to dry a little. Store them in hessian sacks and keep in a cool, dark room. Check them every so often to make sure they haven’t spoilt.

If you’re dreaming of eating freshly-grown spuds on Christmas day, now is the time to plant them. If you’re not using potato grow bags, consider large containers. As the cold weather returns and the temperatures drop, you’ll need to move them somewhere where the frost can’t get to them.

Choose a sunny day to pull garlic and onions and lay them out on the topsoil to dryGarlic and onions

Both crops should now be ready to be pulled. Ideally, choose a sunny day, and lay them out on the topsoil to dry. Failing that, dry them in your greenhouse or polytunnel. Once dried, they can be stored and used when you’re ready.

Pests and diseases

Powdery mildew can affect pumpkins, squashes and courgettes. First sign of this on your plants, remove infected leaves. Do not place on your compost heap, as this will encourage the bacteria. Either burn, or remove from site completely.

Weevils, blackfly, greenfly, aphids, slugs and snails will be thriving at this time of year. If chemicals aren’t an option for you, try hosing them off your plants, or spray with soapy water. Another option is to crush a clove or two of garlic and add it to the water in your spritzer bottle, as garlic deters pests. A morning or evening stroll around your plot is the perfect time for picking off slugs and snails.

Winter veg

If you’re hoping for a harvest of winter veg, then you should be thinking about planting out your autumn veg. Vegetables to consider are brassicas, leeks and swede.

Fruit

Hungry birds will make light work of strawberries, gooseberries, blackcurrants or blackberries, so net your fruit.

July is for pruning fruit trees, such as plum and cherryStrawberry plants will be producing runners, so if you want new plants for next year, pin the runners to the soil. Once they establish a root system, cut the runner from the main plant. Alternatively, if you want to maximise this year’s crop, remove the runners to divert the energy to the existing fruit.

This is also the month for pruning fruit trees, such as plum and cherry. The warmer weather reduces the risk of bacteria harming an open wound on a cherry tree, and setting off silver leaf disease. Summer pruning can also be carried out on trained apple and pear trees.

Other jobs

  • If you have a pond with fish, ensure water levels don’t drop. Remove any blanket weed as this can suffocate ponds.
  • Turn your compost bins as the aeration will open air pockets and drain away excess water, speeding up the decomposition process.
  • Check plants daily for the onset of pests. Ensure plants haven’t dried out, and if need be, move to a cooler spot.
  • Taking time to sit and enjoy your plants may also be the ideal opportunity to order autumn flower and seed catalogues.

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