As summer fades and cooler autumn days arrive, many gardeners assume their outdoor spaces will become dull and lifeless. But this couldn’t be further from the truth! Autumn is a time of rich, vibrant colour—and at Hilltop Garden Centre, we have a beautiful selection of September flowering plants to bring your garden back to life.
September is the perfect time to plant autumn bloomers. These flowers thrive well into the season and add colour just as many other plants begin to fade.
Asters
Asters—often called Michaelmas daisies—are a must-have for autumn gardens. These dainty, daisy-like flowers come in purples, pinks, blues, and whites. They attract bees and butterflies, which makes them ideal for wildlife-friendly spaces.
Why Choose Asters?
Asters are hardy and versatile. They suit many garden styles, from relaxed cottage gardens to neat formal borders. Their blooms last from late summer into early autumn, adding a splash of colour when other flowers are winding down.
Caring for Asters
Asters prefer full sun but cope well with partial shade. Plant them in well-drained soil and mulch around the base to retain moisture and reduce weeds. Water regularly, but don’t overdo it. Remove spent flowers to encourage more blooms.
Chrysanthemums

Chrysanthemums are classic September flowering plants. Their large, vibrant blooms light up gardens in shades of red, orange, yellow, pink, and white. Whether in pots or borders, they offer unbeatable autumn colour.
Why Choose Chrysanthemums?
These flowers come in various shapes, sizes, and colours, making them easy to match with your existing garden palette. They’re also low-maintenance and continue blooming right through the season.
Caring for Chrysanthemums
Plant them in sunny spots with well-drained soil. Give each plant room to grow. Regularly deadhead flowers to keep them tidy and encourage more blooms. That’s all it takes to keep them looking their best.
Rudbeckia

Also known as Black-eyed Susan, Rudbeckia bursts with golden-yellow or orange daisy-like flowers. Each bloom has a dark, cone-shaped centre, creating a striking contrast. They flower from late summer well into autumn.
Why Choose Rudbeckia?
Rudbeckia is robust and easy to grow. It’s drought-tolerant, low-maintenance, and thrives in different soil types. Best of all, it attracts bees and butterflies, adding life and movement to your garden.
Caring for Rudbeckia
Plant Rudbeckia in full sun for the best results, though they will tolerate some light shade. Well-drained soil works best, but they adapt to sandy or poor soils too. Water during dry spells and deadhead faded blooms to keep plants tidy and flowering longer.
Cyclamen

Cyclamen brings a delicate touch to shady areas of your garden. Its dainty pink, red, or white flowers bloom beautifully in darker corners, under trees, or in containers. This plant thrives in partial to full shade.
Why Choose Cyclamen?
Cyclamen’s gentle blooms brighten gloomy spots and flower from late summer through autumn. They’re perfect for containers and compact spaces. You’ll love how they extend your garden’s interest without needing much attention.
Caring for Cyclamen
Use humus-rich, well-drained soil. Water regularly, but let the soil dry slightly between watering sessions. Keep your plant tidy by removing yellow leaves. Adding mulch helps keep moisture in and protects the roots in cooler months.
Dahlias

Though often linked with summer, Dahlias continue to bloom well into autumn. Their large, bold flowers bring drama to beds and borders. Available in almost every colour, they’re ideal for September planting.
Why Choose Dahlias?
Dahlias make fantastic focal points. They’re also great for cut flowers, letting you bring autumn beauty indoors. With the right care, these plants will flower until the first frost, giving you plenty to enjoy.
Caring for Dahlias
Dahlias like full sun and well-drained soil. Water often, especially during dry weather. Deadheading is key—remove spent blooms regularly to keep the flowers coming. That simple routine leads to months of colour.
Refresh Your Garden This Autumn
September is a brilliant time to give your garden a fresh start. With plants like Dahlias, Chrysanthemums, Asters, Rudbeckia, and Cyclamen, you can enjoy rich colour right through the season.
At Hilltop Garden Centre, we stock all these beautiful autumn bloomers and more. Our team is on hand to help you choose the best plants and share tips for autumn care.
Visit us today and discover how easy it is to make your garden glow with colour this season with a fantastic selection of September flowering plants. Happy gardening!