August marks a quiet turning point in the gardening calendar, a bridge between the bold brilliance of summer and the soft beginnings of autumn.
Our August Gardening Guide is here to help you navigate this seasonal shift with purpose, care, and plenty of planting possibilities.
Whether you’re looking to prolong the life of your summer garden, prepare for a spectacular spring, or care for the soil beneath your feet, August is the ideal time to take gentle yet impactful action.
A Season for Steady Care
In August, your garden is likely bursting with colour, but it won’t last without a little effort. This month calls for thoughtful maintenance:
- Deadhead flowers such as dahlias and roses to encourage fresh blooms
- Prune wisteria by cutting back long, whippy growth to five or six leaves, which also helps form next year’s flower buds
- Cut back lavender after flowering to keep bushes neat and long-living
- Prune roses that don’t develop hips by thinning out old stems and tidying up flowering shoots
- Cut back perennials once they’ve finished flowering to refresh growth
This is also an excellent time to tidy garden edges, mow regularly (but not too short), and remove weeds before they go to seed.
Feed Your Garden for Autumn Strength
By August, your soil and plants have been working hard, and it’s time to give back. Feeding plants during the growing season encourages stronger growth, vibrant flowers, and more productive harvests.
- Tomatoes that are still flowering and fruiting will benefit from consistent feeding and watering
- Roses respond well to pruning and feeding to encourage further flushes of flowers
- Lawns can be revived with regular feeding, higher mower blades, and weed removal
- Leafy edibles and bedding plants thrive when given consistent nourishment
Regular feeding now helps your garden recover from summer demands and prepares for the cooler months ahead.
Conserve Water, Reduce Stress
While days may feel cooler, August can still bring long dry spells. Plants are under more stress than they seem, especially container-grown varieties and shallow-rooted perennials.
To support your plants:
- Water early in the morning or late evening to avoid evaporation
- Apply mulch to retain moisture and regulate soil temperature
- Move pots and containers into shadier areas before holidays
- Place pots in saucers, buckets, or even paddling pools to create water reservoirs while you’re away
- Hanging baskets can dry out quickly, so stand them in shade where possible
Smart watering not only preserves resources but also promotes deeper root growth and more resilient plants.
Sow Seeds, Plant Bulbs, Plan Ahead
A truly forward-thinking August gardening guide always encourages you to think one season ahead. Autumn and even next spring begin now, with seeds and bulbs planted today.
Sow now for autumn harvests:
- Leafy greens like spinach and rocket
- Quick crops such as radishes and salad mixes
Plant now for spring displays:
- Early bulbs like Crocus, Allium, Snowdrops, and Narcissus provide vital nectar to pollinators when little else is flowering.
Take cuttings of tender plants such as fuchsias, pelargoniums, and verbenas. With care, they’ll root and be ready for next year’s displays.
Kitchen Garden Jobs
August is a busy time in the vegetable patch and fruit garden. Now’s the time to:
- Harvest peas and beans regularly to encourage the production of more pods.
- Lift garlic and shallots once the foliage has died back, allowing the bulbs to dry for storage.
- Prune fruit trees, such as espaliered apples and pears, by cutting back new shoots to three leaves to improve airflow and promote fruiting.
- Prune canes of summer-fruiting raspberries, blackberries, and hybrids that have already fruited, tying in the new growth for next year
These tasks help you enjoy the last of summer’s bounty while setting up healthier harvests for the next season.
Rejuvenate Indoor Spaces with Houseplants
While outdoor colour begins to mellow, indoor greenery becomes even more critical for mood and wellbeing. August is an excellent time to introduce or expand your collection of houseplants.
Choose from:
- Air-purifying indoor palms and ferns
- Hardy succulents and cacti
- Pet-friendly foliage
- Striking orchids and tropicals
Pair your picks with ELHO recycled plastic pots for a touch of eco-conscious design in every room.
FAQs: August Gardening Guide
What can I plant in August in the UK?
August is ideal for sowing quick-growing crops, such as radishes, arugula (also known as rocket), spinach, and lettuce. You can also begin planting spring-flowering bulbs, such as crocuses, daffodils, snowdrops, and alliums. It’s also a good time to divide some perennials and plant evergreen shrubs.
Should I still be feeding plants in August?
Yes. Continue feeding flowering plants, container displays, and fruiting crops such as tomatoes. This helps maintain blooms and strengthens plants for the months ahead.
How often should I water my garden in August?
Watering depends on the weather, but most gardens require deep watering every two to three days. Always water early in the morning or late in the evening, focusing on the root zone to minimise evaporation. Consider adding mulch to help retain moisture.
Can I start planning for spring now?
Absolutely! Planting spring-flowering bulbs in August gives them time to establish before winter. Bulbs, such as snowdrops and crocuses, also provide vital food for early pollinators, making this a both beautiful and eco-conscious choice.
What houseplants are best for beginners?
If you’re new to indoor plants, try peace lilies, snake plants, or pothos. They’re low-maintenance, adaptable to various light conditions, and can help purify indoor air. All are available from our rotating JAVADO houseplant collection.
Stay Connected with the Growing Season
Gardening doesn’t end in the garden itself. To stay in rhythm with the seasons, we encourage readers of our August Gardening Guide to subscribe to the Vanstone Park Garden Centre newsletter. Each issue brings expert tips, seasonal reminders, product highlights, and exclusive offers directly to your inbox, designed to inspire and inform your journey throughout the year.
For those who love gardening all year long, becoming a Vanstone Park Garden Centre Reward Card Member offers even more benefits. You can earn points as you shop, enjoy member-only discounts, receive birthday rewards, and get early notice of seasonal product arrivals. It’s a simple way to deepen your connection to the garden and the gardening community.
We also warmly invite you to visit us in person at Vanstone Park Garden Centre, Hitchin Rd, Codicote, Herts, SG4 8TH, where you can explore a wide range of plants, gardening essentials, and beautiful inspiration for both home and garden.
