July Gardening Tips

July Gardening Tips

With Summer in full swing, there is still lots of little jobs we can do to catch up on some gardening therapy!

These July Gardening Tips are a helpful guide looking at what we can do now to maintain the wonderful lush flourish in the garden but also looks ahead at what we can do now to aid the seasons ahead.

Early July

When sowing seeds water the bottom of the drill, sow seeds and cover with dry soil. This maintains moisture levels around the seeds for a longer period.

Cut back straggly violas to encourage new shoots, Use trimmings for cuttings.

Water and ventilate the greenhouse regularly.

Take clematis cuttings. Cut the new stems into sections between the leaf joints.

Prune plums, fruiting and ornamental cherries now. Treat large cuts with wound paint.

Prune and shape bay trees. They will tolerate fairly severe cutting back now.


Mid July

Keep camellias and magnolias moist at all times from now until late September. This is an essential aid to the setting of next year’s blooms.

Trim hedges including conifer and other evergreen hedges.

Be careful with water – early morning and late evening are the best watering times. There is usually no need to water the lawn.

Take particular care of planted containers. Keep them fed, watered and dead headed.

Cut down herbaceous geraniums and poppies as they stop blooming to encourage new shoots.

Give roses a boost with a dressing of rose fertiliser.

If greenfly attack water lily foliage, just sink the leaves under the water for a few hours.

Keep feeding and training tomatoes and other greenhouse fruiting plants.

Try growing oriental vegetables, like Chinese cabbage, this is the best month for sowing.

Sow beetroot, florence fennel, swiss chard, raddichio, and turnips in the vegetable garden.

Spray potato foliage if attacks of potato blight are likely.

Prune summer fruiting raspberries after harvest by removing old, fruited canes.

Air layer straggly houseplants, usually near the top, to create a new plant. Pinch out the tips of unwanted grape shoots after one leaf, to concentrate the plant’s energy on fruiting.

Take conifer cuttings from stems that are characteristic of the variety.


Late July

If you go on holiday, enlist the neighbours to look after your plants.

Pinch out the tops of outdoor tomato plants once four trusses of fruit have formed.

Sow parsley for winter use.

Onions, garlic and shallots are ready to harvest when foliage turns yellow and bends over.

Sow autumn / winter salads, e.g. claytonia, salad rocket, corn salad, land cress, and winter hardy white Lisbon onions.

Cut the old foliage off strawberry plants after harvest. New growth soon appears.

Take fuchsia cuttings to be trained as standards. Lantana, golden privet and elaeagnus are also suitable for training in this fashion.

Take semi – ripe cuttings from most shrubs – they will root easily now.


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