Five simple gardening tasks in September can deter pests, support wildlife and encourage healthy growth in the coming months, according to James Ewens, gardening expert at Green Feathers.
As summer draws to a close, September is the optimal time for gardeners to bridge the gap between summer harvests and preparing for the next growing season, while also supporting wildlife in their garden.
Why September matters
Ewens said: "Your September jobs don’t have to be exhaustive, but a little goes a long way. Your garden is experiencing less daylight and cooler temperatures, and more moisture in your soil works in your favour for planting and establishing new growth."
He added: "September is also a vital time to support our wildlife populations by building up food and shelter reserves, including our feathered friends and our pollinators. These five small gardening jobs can make a huge difference to your garden’s success in the year to follow."
Plant spring bulbs and divide perennials
September soil retains warmth from the peak summer months, making it the perfect time to plant spring-flowering bulbs. This lets roots establish in the tepid soil before the winter chill. Daffodils, tulips, crocuses and hyacinths can develop strong root systems that survive winter and produce vibrant spring blooms. Staggering varieties can provide months of colour, with crocuses showing in February and late tulips in May. Early spring blooms provide some of the first vital nectar sources for bees emerging from winter hibernation.
Many herbaceous perennials, such as asters and daylilies, benefit from being divided every three to four years, and September is the ideal time. The soil is still workable and plants are slowing growth as autumn nears. Dividing prevents overcrowding, reduces competition for nutrients, and rejuvenates older clumps that may have stopped blooming vigorously. More flowers extends the feeding season for pollinators, giving them a consistent source of energy and nutrients.
Support wildlife and care for the lawn
September is the perfect time to create a safe haven for wildlife by providing water, food and shelter for the scarce cold months. Leaving seedheads on sunflowers, planting native trees and shrubs, and supplementing with bird-loving food like high-energy bird cakes or fat balls provides a food source for birds. Piles of logs, leaves and branches create instant shelter for hedgehogs, amphibians and insects. Delaying heavy pruning gives insects a safe home for winter, maintaining biodiversity at the most crucial time of year.
September is also ideal for lawn care. Tepid soil and regular rainfall mean new grass can germinate quickly, while aerating compacted soil improves drainage and root growth. Overseeding bare patches allows them to thicken before winter, giving an even, healthy appearance. A light feed with something high in potassium and phosphorus can promote strong root growth and winter hardiness. A healthy lawn also supports birds foraging for worms and insects.
Harvesting
Apples, pears, plums, squash, pumpkins, late beans and courgettes will now be ready to pick. Regular harvesting encourages continued fruitful crops and prevents them from falling and going to waste. Collecting fruits and vegetables at their peak also prevents pests and the spreading of diseases.
