May marks one of the most rewarding months in the gardening calendar. The risk of frost is finally fading, the soil is warming, and the long daylight hours invite you to spend more time outdoors. Whether your goal is to grow your own vegetables, refresh your borders, or enjoy your outdoor space, May is the perfect time to make your garden thrive.
At Vanstone Park Garden Centre, we have everything you need from seeds and bulbs to garden care essentials, stylish outdoor living furniture, and expert advice to help your garden burst into life.
Whether you’re a seasoned green thumb or just beginning your gardening journey, this guide to May gardening jobs will help you make the most of the month ahead.
Tidy Up, Trim, and Prepare for Growth
After a burst of spring activity, May is your chance to tidy up the garden and prepare it for the vigorous growth to come.
Prune spring-flowering shrubs such as Forsythia and Chaenomeles once they’ve finished blooming. Trim them back by about one-third to encourage healthy new growth and shape them nicely for summer.
If you have herbaceous perennials like hardy geraniums or delphiniums, give them a quick tidy by removing old stems and spent blooms. This helps channel energy into new growth and prolongs their flowering season.
At Vanstone Park, you’ll find garden care essentials, including pruning tools, gloves, compost, and plant feed, everything you need to keep your plants in top condition.
Feed, Weed, and Mulch
With warmer temperatures and longer days, weeds start appearing with alarming enthusiasm. Keep on top of them now before they take hold.
Regular weeding keeps your garden tidy and prevents your plants from competing for nutrients. Once you’ve cleared the weeds, add a layer of mulch, bark, compost, or decorative gravel to retain moisture and keep future weeds at bay.
Don’t forget to feed your plants, too. Apply a balanced, slow-release fertiliser around shrubs, roses, and perennials to give them the boost they need to produce strong, healthy growth.
You can pick up a wide selection of garden care products, compost, and feeds at Vanstone Park Garden Centre, including eco-friendly options and top brands trusted by local gardeners.
Planting Outdoors: Time for Colour and Crops
By mid to late May, the risk of frost is usually over in most parts of the UK, meaning you can finally plant out tender vegetables, bedding plants, and summer displays.
Flowers for Summer Colour
Bring your borders and containers to life with cheerful blooms. Geraniums, begonias, petunias, and marigolds all thrive in May’s warming soil. For continuous colour, mix hardy perennials with annuals to ensure your garden stays vibrant all season long.
Explore our range of outdoor plants, seeds, and bulbs from traditional favourites to unique varieties that’ll make your garden stand out.
Vegetables to Sow and Grow
If you love homegrown produce, May is a busy month. Plant tomatoes, courgettes, runner beans, and sweetcorn outdoors once it’s consistently mild. Lettuce, beetroot, and carrots can be sown directly into the ground.
For first-time growers, we stock a range of vegetable seeds, seed trays, and quality compost to get you started. And if you need advice, our friendly team are always happy to help, no question is too small!
Hanging Baskets and Patio Pots
Few things brighten up a patio or doorway like a well-planted hanging basket or container. May is the perfect month to create them.
Choose trailing plants like lobelia, fuchsia, and bacopa for baskets, and mix them with upright flowers for contrast. If you prefer low-maintenance, drought-tolerant displays, try geraniums and verbena.
At Vanstone Park, our outdoor lifestyle and garden care sections have everything you need from pre-lined hanging baskets and premium potting compost to decorative pots, feed, and stylish accessories to suit every home.
And if you’re short on time, our helpful staff can assist with carrying your purchases to your car or arrange home delivery for larger items, perfect for those beautiful but heavy ceramic planters!
Caring for Your Lawn
With the grass growing fast, May is a key time for lawn care. Start mowing regularly, keeping blades high at first to avoid stressing new shoots. Feed your lawn with a nitrogen-rich fertiliser to promote lush, green growth.
If you notice bare patches, overseed them and keep them watered until established. Regular weeding and aeration will help your lawn stay strong and healthy through the summer.
We stock grass seed, lawn feed, and garden tools in our garden care section, as well as wildlife-friendly lawn options for a more natural look that attracts bees and butterflies.
Houseplants and Indoor Greenery
Don’t forget your indoor plants this month. With longer days, most houseplants begin to grow more actively. Repot any that have outgrown their containers and move them to brighter spots (but out of direct midday sun).
Visit our houseplants department to explore everything from tropical favourites like monsteras and orchids to easy-care succulents and air plants. Add a touch of colour to your home and boost your wellbeing at the same time!
Wildlife and Garden Visitors
May is a busy time for wildlife. Birds are nesting, bees are buzzing, and hedgehogs are venturing out at night.
Support your garden visitors by providing food, water, and shelter. A bird feeder or bee house can make a big difference, and they’re great for children to learn from, too.
Our wildlife, bird & pet care range includes quality feed, nesting boxes, and bee hotels to keep your garden full of life and activity.
Enjoy the Outdoors: Furniture and Family Time
Now that the weather is warming up, it’s time to make your garden an inviting space to relax and entertain.
Explore our outdoor leisure and outdoor lifestyle collections for stylish garden furniture, parasols, and barbecues perfect for hosting friends or enjoying a quiet cuppa surrounded by your blooms.
And since Vanstone Park Garden Centre is proudly dog-friendly, you can even bring your four-legged friend along while you browse. There’s plenty of free parking and complimentary Wi-Fi throughout the centre, making your visit as convenient and enjoyable as possible.
Looking Ahead: Preparing for June and Beyond
May sets the stage for a blooming summer. Keep an eye out for pests like aphids and slugs, stake tall perennials before they flop, and water containers regularly as the weather warms up.
Consistency is key. A little attention now will ensure your garden rewards you with colour, fragrance, and harvests all through the season.
FAQs: May Gardening Jobs in Hertfordshire
What should I plant in May in the UK?
You can plant bedding plants like petunias, begonias, and geraniums, as well as tender vegetables such as tomatoes, courgettes, and beans, once frosts have passed.
Can I still sow seeds in May?
Absolutely! Many annuals and vegetables thrive from sowing in May. Try sunflowers, zinnias, carrots, and lettuce for quick, rewarding results.
How often should I water in May?
As the weather warms, water early mornings or evenings to prevent evaporation. Container plants may need daily watering on hot days.
Is it too late to plant summer bulbs?
Not at all, you can still plant dahlias, gladioli, and lilies in May for spectacular summer colour.
How can I keep weeds under control naturally?
Regular hoeing, mulching, and using ground cover plants are effective ways to suppress weeds without chemicals.
Visit Vanstone Park Garden Centre This May
Get everything you need for your May gardening jobs at Vanstone Park Garden Centre. From plants and seeds to tools, compost, and garden furniture, our family-run centre has been helping Hertfordshire gardeners grow with confidence since 1976.
📍 Vanstone Park Garden Centre
Hitchin Rd, Codicote, Herts, SG4 8TH
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