What to plant in September
September marks the transition from summer to autumn, but don’t be fooled into thinking the gardening season is winding down. In fact, it’s one of the best months of the year for planting.
The soil remains warm after the summer months while cooler air temperatures reduce stress on young plants, creating ideal growing conditions for strong root development.
Sow hardy annuals
For gardeners wanting an early burst of colour next year, now is the perfect time to sow hardy annuals.
Plants such as cornflowers, snapdragons and other hardy flowering varieties can establish themselves before winter and will reward you with earlier, stronger blooms in spring and summer. Choose a sunny, well-drained spot and avoid overcrowding seedlings as they develop.
Spring-flowering bulbs
September is also the traditional season for planting spring-flowering bulbs. Daffodils, hyacinths, crocuses and alliums can all be planted now, giving them plenty of time to develop roots before winter arrives.
These bulbs will provide welcome colour after the colder months and can be planted in borders, containers or naturalised in lawns.
Cold-season vegetables
The kitchen garden still has plenty to offer too. Cold-season vegetables thrive when planted in September, including spinach, rocket, mustard leaves and lamb’s lettuce. Many gardeners also begin planting onion sets and garlic for crops next year.
Quick-growing radishes are another excellent option, providing a harvest in just a few weeks.
Harvest-time
As you plant for the future, don’t forget to enjoy the rewards of the current season. September is harvest-time for many fruits and vegetables, while late-summer flowers continue to provide colour throughout the garden.
Overcrowded perennials
It’s also a good opportunity to divide overcrowded perennials and refresh tired borders.
A little effort in September can pay dividends for months to come, helping to ensure your garden remains productive, colourful and full of life right through to next spring.
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