Posted by Tom Steel on 26th May 2026

Gardening Jobs for June

June is when the garden really starts to come into its own. Borders are filling out, hanging baskets are overflowing with colour, and vegetable plots are finally looking like providing regular harvests after weeks of sowing and preparation.

But while the garden may be looking sharp, June is also one of the busiest months in the gardening calendar. Rising temperatures, longer days and rapid growth mean small jobs can quickly pile up if we’re not careful. Keeping on top of our key tasks now will help ensure a colourful, healthy, productive garden through the summer.

Water thoroughly during warm weather

As temperatures start to rise, watering becomes one of the most important gardening jobs in June - especially for containers, hanging baskets and newly planted displays.

Plants growing in pots tend to dry out far quicker than those planted directly into borders, particularly during windy or sunny weather. Greenhouse crops can also struggle surprisingly fast during periods of heat, even when outdoor temperatures still feel fairly mild.

Hanging baskets, Begonias, Petunias and newly planted bedding displays will usually need the closest attention during dry spells.

Rather than watering lightly every day, it is far better to water deeply every few days to encourage stronger root systems and improve drought tolerance. Early morning or late evening watering also helps reduce evaporation while giving plants time to properly absorb moisture.

Plant out tender summer bedding

With the risk of frost largely behind us by the time June comes around, we can start planting tender bedding and moving summer containers outdoors.

Borders and containers can now be packed with summer colour, from trailing Petunias spilling over hanging baskets to Salvias and Cosmos bringing height and movement to sunny borders.

Classic choices for June planting include Begonias, Salvias, Cosmos, Nicotiana and Petunias, all of which thrive during warm weather and provide reliable colour throughout the season.

If plants have been raised indoors or in a greenhouse, you can harden them off gradually before planting them out. This helps prevent sudden temperature changes or strong sunlight from damaging soft young growth.

June is also the perfect month to refresh spring containers, replacing fading displays with summer-flowering varieties that will continue performing well into autumn.

Deadhead regularly to keep flowers coming

One of the simplest jobs in June is also one of the most rewarding. Removing faded flowers encourages many plants to continue blooming all summer long rather than diverting energy into seed production.

Regular deadheading helps keep displays looking fresh on plants such as Roses, Cosmos, Geraniums and Petunias, while frequent picking encourages sweet peas to keep flowering for as long as possible.

Even spending a few minutes removing spent blooms during an evening walk around the garden can make a noticeable difference to containers and borders, especially as displays begin to reach their peak later in the month.

Support tall-growing plants before they flop

June growth can be surprisingly vigorous, and many early summer favourites benefit from support before heavy rain and summer storms arrive.

Some of the most important plants to stake now include Delphiniums, Lupins, Peonies and Dahlias, all of which can become top-heavy once flowers fully open.

Adding supports early allows stems to grow naturally through them, creating a much neater finish than trying to rescue collapsed growth after bad weather.

Climbing plants should also be tied in regularly throughout the month.

Sweet Peas, Clematis and Climbing Roses will all produce stronger, healthier displays when guided onto supports as they grow, while improved airflow around stems can help reduce the risk of mildew during humid weather.

Keep weeds under control

The warm soil and longer daylight hours of June can, unfortunately, also create the ideal growing conditions for weeds, particularly around newly planted borders and vegetable beds.

A quick weekly hoe while weeds are still small is far easier than tackling established growth later in summer, especially once plants begin filling out around them.

Areas surrounding Roses, Dahlias and vegetable crops are often the first to become overcrowded if weeds are left unmanaged for too long, where they compete for both moisture and nutrients during dry weather.

Give greenhouse crops extra attention

Greenhouses can heat up extremely quickly during June, making ventilation essential during warmer weather. Opening vents and doors over the course of the day helps regulate temperatures and improves airflow around plants.

Crops such as tomatoes, cucumbers, chillies and aubergines will all benefit from consistent watering and regular feeding as growth accelerates.

Tomatoes in particular require a little extra maintenance during the month. Remove side shoots from cordon varieties, tie stems securely to supports, and begin feeding once flower trusses start to develop.

Keeping watering consistent is especially important, as irregular watering can lead to splitting fruit or blossom end rot later in the season.

Harvest little and often

June is often the month when the kitchen garden really begins to reward all the hard work put in during spring.

Fresh harvests can usually be taken from lettuce, radishes, strawberries, herbs and early potatoes, depending on sowing times and local growing conditions.

Picking crops regularly encourages continued production and helps maintain the best flavour and texture, particularly with salad crops and herbs.

It is also worth continuing to sow quick-growing vegetables throughout June to maintain harvests later into summer.

Salad leaves, beetroot and carrots can all still be sown successfully this month.

Keep lawns healthy during dry spells

Lawns usually grow vigorously during early summer, but periods of hot, dry weather can quickly leave grass stressed if cut too short.

Raising mower blades slightly during warm spells helps lawns retain moisture and reduces the risk of scorching, particularly during extended dry periods.

Allowing some areas to grow a little longer can also help encourage pollinators and create a more wildlife-friendly garden overall.

Keeping the garden at its best

With everything in the garden now growing strongly, a little regular attention helps keep colour and structure developing through the rest of the season.

Parker’s Pots

Carefully grown at our own nursery, these quality potted plants are well-established and ready to bring reliable colour, structure and long-lasting performance to the summer garden.

Rudbeckia laciniata ‘Herbstsonne’
Supplied as 1 Litre Pot Grown Plants
Packs of 1 & 3
Shop now

Strawberry ‘Korona’
Supplied as 9cm Pot Grown Plants
Packs of 3 & 6
Shop now

Geranium ‘Brookside’
Supplied as 1 Litre Pot Grown Plants
Pack of 1& 3
Shop now

Rose Climbing ‘Golden Showers’
Supplied as 2 Litre Pot Grown Plants
Pack of 1& 2
Shop now

Growing guides for June

Begonias| Clematis| Dahlias| Geraniums| Salvias

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