August Gardening Jobs: What to Plant, Grow, and Renovate This Month

August is that sweet spot between high summer and the early signs of autumn. Your garden is likely full of colour and crops, but it’s also the time to think ahead - tidying, sowing for late harvests, and maybe giving your space a little upgrade while the weather’s still on your side.

Here’s everything you need to know from our Woodie’s expert, Trevor McCarthy, for a productive (and relaxing) month in the garden.

Garden Maintenance and Cleaning in August

This time of year, it’s about keeping things fresh, hydrated, and tidy so you can enjoy your space at its best.

- Water early and consistently: August can bring dry spells, so water early in the day to beat evaporation. Focus on the roots, and check pots and hanging baskets daily. Explore our watering range for tools that make it easier.

- Keep weeds in check: They grow just as fast as your plants this time of year! Hoe them out or pull by hand before they get too established.

- Lawn care: Mow weekly but raise the blade slightly if it’s hot. If the lawn looks tired, you can feed it with a summer feed or start planning for autumn repairs.

- Deadhead and tidy: Remove spent flowers from perennials and annuals to encourage more blooms. Snip back straggly growth to keep everything looking sharp.

- Pest patrol: Look out for aphids, caterpillars, vine weevils and slugs. You’ll find natural and effective options in our pest control selection.

- Sweep and spruce up: A quick clean of paths and patios with a stiff brush or power washer helps your garden feel brand new. Browse our garden care range for essentials.

What to Plant in August: Vegetables, Herbs, and Flowers

There’s still lots you can plant in August—especially if you’re thinking about autumn harvests or next year’s flowers.

What Vegetables to Plant in August

- Lettuce and salad leaves: Great for quick growth. Sow little and often.

- Radishes: Ready in as little as four weeks—perfect for pots or window boxes.

- Spinach and Swiss chard: These leafy greens do well in the cooler months ahead.

- Spring onions: Sow now for crisp autumn crops.

- Turnips: Quick to mature and ideal for soups and stews.

- Winter cabbage and kale: Sow now for strong, hardy leaves through winter.

What Herbs to Plant in August

- Coriander: Loves the cooler temperatures of late summer.

- Parsley: Slow-growing but worth it—especially in pots near the kitchen.

- Chervil: Delicate and perfect for sowing now for a cooler season harvest.

What Flowers to Plant in August

- Biennials: Sow foxgloves, wallflowers, honesty and sweet Williams for spring colour next year.

- Perennials in pots: Plant now so they can establish before colder weather.

- Start prepping for bulbs: Daffodils, crocus and tulips will be in stores soon—get your beds and borders ready.

Feeding and Caring for Your Garden

- Feed containers weekly: Baskets, pots, and hungry veg like tomatoes and courgettes need regular feeding. A liquid feed will keep them going strong.

- Mulch to retain moisture: A layer of bark, compost or even lawn clippings can help keep roots cool and moist.

- Support heavy stems: Some tall perennials and veg might need staking after summer growth spurts.

- Tidy and prep: Start thinking ahead—clearing space now means easier planting next month.

Pruning in August: What to Cut Back and Shape

August is a great time to do some shaping, especially after early summer flowering is done. A light tidy now can help avoid heavier jobs later.

- Wisteria: Cut back this year’s long side shoots to around 5–6 leaves to encourage flowering next spring.

- Summer-flowering shrubs: Trim back shrubs like philadelphus and lavender once their blooms are finished.

- Evergreen hedges: Give a light trim to keep hedges neat and compact—check out our deals on hedge trimmers if you are in need of a new one.

- Roses: Continue deadheading and remove any weak, crossing or damaged stems.

Garden Renovation Projects for August

If you’re dreaming of a more inviting garden space, now’s a great time to make it happen. With dry weather and long evenings still hanging on, a few simple updates can make all the difference.

- Update your outdoor seating: Been thinking about replacing that wobbly table or tired old chair? Our garden furniture range has everything from sleek aluminium sets to classic wooden pieces.

- Lounge in comfort: Whether it’s morning coffee or evening cocktails, our lounge sets offer relaxed vibes and plenty of style.

- Set the table for summer: Enjoy dinner outside while the weather’s still good. Browse our dining sets to find something perfect for your space.

- Fire up the barbecue: Hosting a few friends? Take a look at our guides on how to host a barbecue party and how to prepare the perfect charcoal BBQ to make it one to remember.

- Style it your way: For those finishing touches—think cushions, lanterns, and garden lighting—check out our inspiration on how to create a summer oasis in your garden.

Embrace Late Summer Gardening with Woodie’s

August is a fantastic time to enjoy the garden you’ve worked hard on all year and to get ready for what comes next. From planting and pruning to full-on furniture upgrades, we’ve got everything you need to make it easy and enjoyable.

Call into your local Woodie’s or browse the full lawn and garden range online.

Frequently Asked Questions – August Gardening

What can I plant in August in Ireland?
Plenty! Sow leafy greens like spinach, kale, and lettuce. You can also get started on next year’s flowers with biennials and spring bulbs.

Can I still enjoy the garden in August?
Absolutely. Add some new furniture, fire up the BBQ, or just relax with a cup of tea—there’s still lots of summer left.

What should I prune this month?
Trim back shrubs that have finished flowering, give hedges a light shape, and tidy up climbers like wisteria.

Is it too late to start a garden project in August?
Not at all. August is actually a brilliant time to refresh your space with new furniture or plan some simple upgrades before autumn arrives.

Do I need to water as much in August?
That depends on the weather, but pots and baskets will likely still need daily attention in warm spells.

Written by

Trevor McCarthy, Woodie's Expert Horticulturist

With over three years of experience at Woodie’s, you can count on Trevor for expert advice on seasonal planting, garden care, and sustainable growing. Passionate about helping gardeners of all levels blossom, you can expect practical tips and specialist plant knowledge in every guide he writes.