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Plants that Flower in September

The heat may be starting to fade, but that does not mean the colour should. Keep it fresh with asters, phlox and late-flowering anemones.

By type
Facing
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Bulb planting time
Bulb divisions
Bedding planting time
RHS Chelsea Flower Show plant of year
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Multibuy packs
Ready made borders
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Hardiness
Leaf colour
Ground cover
Position
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Used at RHS Chelsea Flower Show
Kitchen garden planting guidelines
Sort by availability
All items
Showing Flowering month : September clear all
1815 items
Award-winning spring, summer & autumn clematis collection
Award-winning spring, summer & autumn clematis collection
£47.97
available to order from summer
Award-winning summer flowering clematis collection
Award-winning summer flowering clematis collection
£44.97
available to order from spring 2027
Award-winning sweet pea collection
Award-winning sweet pea collection
£10.27
available to order from summer
Sweet pea collection highly scented
Award-winning sweet pea collection highly scented
£11.17
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Bees and butterflies dahlia collection

Best Seller

Bees & butterflies dahlia collection
From £23.95
available to order from winter
Begonia collection for hanging baskets & pots
Begonia collection for hanging baskets and pots
From £11.95
available to order from winter
Berry dahlia collection

Best Seller

Berry dahlia collection
From £29.75
available to order from winter
Best purple salvia collection

New

Best purple salvia collection
From £29.97
1 × collection | 3 plants
3 × collections | 9 plants
Best salvias for pots salvia collection
Best salvias for pots collection
£39.97
available to order from summer
Blue and white cutting garden collection
Blue & white cutting garden collection
£11.36
1 × collection
Blue spires and spots mini-border collection
Blue spots and spires mini-border collection
£57.99
available to order from spring 2027
Border salvia collection

New

Border salvia collection
From £41.96
available to order from summer
Botanical Tales dahlia collection

New

Botanical Tales dahlia collection
From £17.75
available to order from winter
Bright and bold sweet pea collection
Bright & bold sweet pea collection
£9.97
1 × collection
Bruised dahlia collection

New

Bruised dahlia collection
From £16.99
available to order from winter
Burnt orange dahlia collection
Burnt orange dahlia collection
From £15.99
available to order from summer
Burnt sugar dahlia collection

Best Seller

Burnt sugar dahlia collection
From £18.95
available to order from winter
Candyfloss dahlia collection

New

Candyfloss dahlia collection
From £23.95
available to order from winter
Cherry creme brûlée cutting garden collection
Cherry créme brûlée cutting garden collection
£25.33
1 × collection
Chocolate orange container plant collection
Chocolate orange container plant collection
£31.96 £27.96
available to order from winter
Chocolate orange dahlia collection

New

Chocolate orange dahlia collection
From £17.75
available to order from winter
Chocolate orange pollinator dahlia collection
Chocolate orange pollinator dahlia collection
From £17.99
available to order from winter
1 star 1 star 1 star 1 star 1 star (1)
Classic Canna collection
Classic canna collection
From £28.95
available to order from winter
Classic cottage alba amethyst combination
Classic cottage alba amethyst combination
From £39.96
4 plants | 1 of each
12 plants | 3 of each
Classic cottage alba combination
Classic cottage alba combination
From £40.96
4 plants | 1 of each
12 plants | 3 of each
Classic cottage apricot combination
Classic cottage apricot combination
From £39.96
4 plants | 1 of each
12 plants | 3 of each
Classic cottage dusky Rozanne combination
Classic cottage dusky Rozanne combination
From £45.96
4 plants | 1 of each
12 plants | 3 of each
Coffee and cream 5 varieties dahlia collection

New

Coffee & cream 5 varieties dahlia collection
From £29.95
available to order from winter
Coffee and cream dahlia collection

Best Seller

Coffee & cream dahlia collection
From £23.95
available to order from winter
Contemporary plant combination
Contemporary plant combination
£43.96
4 × plants | 1 of each
Cool & calm container plant collection

New

Cool & calm container plant collection
£33.97
sold out
Cool tones plant combination
Cool tones plant combination
£22.98
2 × plants | 1 of each
Classic cottage mini-border collection
Cottage garden mini-border collection
£64.99
6 × 9cm plants
Cottage garden showstoppers mini-border collection
Cottage garden showstoppers mini-border collection
£71.99
6 × 9cm plants
Crocosmia collection
Crocosmia collection
From £17.95
available to order from winter
Cutting garden dahlia collection

New

Cutting garden dahlia collection
From £28.95
available to order from winter
Dark and rich sweet pea collection
Dark & rich sweet pea collection
£9.37
available to order from summer
Dots & spires plant combination
Dots & spires plant combination
£30.97
3 × plants
Dry shade plant combination
Dry shade plant combination
£37.96
available to order from summer
Dry sun plant combination
Dry sun plant combination
£29.96
4 × plants | 1 of each
Dusky violet shade mini-border collection

New

Dusky violet shade mini-border collection
From £54.99
available to order from summer
Echinops and Achillea plant combination
Echinops & Achillea plant combination
£56.94
6 × plants | 3 of each
Jewel garden plant combination
Echinops & Salvia plant combination
£71.94
6 × plants | 3 of each
Edible flowers plant and seed combination
Edible flowers plant & seed combination
£29.26
available to order from summer
Elegant cutting garden collection
Elegant cutting garden collection
£13.16
1 × collection
Endless scent container plant collection

New

Endless scent container plant collection
£31.96
available to order from winter
3 × Erigeron karvinskianus and embossed aged planter
Crocus collection
Erigeron karvinskianus and an embossed aged planter
£101.24
Evening sky pollinator mini-border collection
Evening sky pollinator mini-border collection
From £57.99
6 × 9cm plants
with large zinc dolly pot Ø46 × H40cm
with tall zinc dolly pot - Ø46 × H50cm
Evergreen groundcover mini-border collection
Evergreen groundcover mini-border collection
£62.99
6 × 9cm plants
Favourite salvia collection

New

Favourite salvia collection
From £31.97
available to order from summer
Forever white container plant collection
Forever white container plant collection
£20.98
available to order from winter
Four seasons clematis collection
Four seasons clematis collection
£62.96
available to order from spring 2027
Scented begonia collection
Fragrant begonia collection
From £14.95
available to order from winter
Heavenly Penstemon collection

New

Heavenly Penstemon collection
From £26.97
1 × collection
3 × collections
Hedychium collection
Hedychium collection
From £26.95
available to order from winter
Heliopsis and Miscanthus plant combination
Heliopsis & Miscanthus plant combination
£65.94
6 × plants | 3 of each
Hydrangea and tulip pot combination

BLOOM30 for 30% off

Hydrangea & tulip pot combination
£123.98
Jewel garden dahlia collection

New

Jewel garden dahlia collection
From £23.75
available to order from winter
John's pollinator 5 varieties dahlia collection

New

John's pollinator 5 varieties dahlia collection
From £28.45
available to order from winter
John's pollinator dahlia collection

New

John's pollinator dahlia collection
From £17.75
available to order from winter
Last days of summer dahlia collection

New

Last days of summer dahlia collection
From £23.95
available to order from winter
Lathyrus latifolius collection
Lathyrus latifolius collection
From £29.99
available to order from spring 2027
Lavender Hidcote and trough combination
Crocus collection
Lavender Hidcote & trough combination
£64.49
3 × plants
Lavish and lush sweet pea collection
Lavish & lush sweet pea collection
£9.37
available to order from summer
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