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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
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RHS Chelsea Flower Show plant of year
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Used at RHS Chelsea Flower Show
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Showing Flowering month : September clear all
1205 items
Perovskia Bluesette

New

Perovskia 'Bluesette'
From £9.99
available to order from spring 2027
Rhododendron Encore Autumn Prince

New

Rhododendron 'Encore Autumn Prince'
£29.99
available to order from spring 2027
Veronica Caledonia
Veronica 'Caledonia'
£24.99
available to order from spring 2027
0.75 star 1 star 1 star 1 star 1 star 4.7 5 11 (11)
Veronica Mohawk
Veronica 'Mohawk'
£19.99
available to order from spring 2027
Veronica Pink Pixie
Veronica 'Pink Pixie'
£19.99
available to order from spring 2027
Buddleja Little Lila (’BotEx 004’) (PBR) (Butterfly Candy Series)
Buddleja Little Lila (’BotEx 004’) (PBR) (Butterfly Candy Series)
£26.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Buddleja × weyeriana Sungold
Buddleja × weyriana 'Sungold'
£19.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 3 (3)
Calycanthus Venus
Calycanthus 'Venus'
£99.99
available to order from summer
0.5 star 1 star 1 star 1 star 1 star 4.4 5 7 (7)
Fuchsia magellanica 'Arauco'

New

Fuchsia magellanica 'Arauco'
£19.99
available to order from summer
Fuchsia microphylla subsp. hemsleyana Silver Lining
Fuchsia microphylla subsp. hemsleyana 'Silver Lining'
From £19.99
available to order from summer
Gardenia jasminoides Kleim's Hardy
Gardenia jasminoides 'Kleim's Hardy'
£26.75
available to order from summer
Hibiscus syriacus Oiseau Bleu
Hibiscus syriacus 'Oiseau Bleu'
£29.99
available to order from summer
0.5 star 1 star 1 star 1 star 1 star 4.6 5 11 (11)
Hydrangea Boléro Blue
Hydrangea 'Boléro Blue'
£24.99 £14.99
available to order from summer
0 star 0 star 0 star 1 star 1 star 2.0 5 2 (2)
Hydrangea aspera Villosa Group
Hydrangea aspera 'Villosa Group'
£32.99
available to order from summer
0.75 star 1 star 1 star 1 star 1 star 4.8 5 5 (5)
Hydrangea macrophylla Blue
Hydrangea macrophylla 'Blue'
£19.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Hydrangea macrophylla Kardinal Violet
Hydrangea macrophylla 'Kardinal Violet'
£19.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Hydrangea macrophylla Lanarth White
Hydrangea macrophylla 'Lanarth White'
From £19.99
available to order from summer
0 star 0.5 star 1 star 1 star 1 star 3.6 5 7 (7)
Hydrangea macrophylla Little Pink
Hydrangea macrophylla 'Little Pink'
£17.99
available to order from summer
0.5 star 1 star 1 star 1 star 1 star 4.5 5 2 (2)
Hydrangea macrophylla Little Purple
Hydrangea macrophylla 'Little Purple'
£19.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 3 (3)
Hydrangea macrophylla Little White
Hydrangea macrophylla 'Little White'
£17.99
available to order from summer
0 star 0.5 star 1 star 1 star 1 star 3.5 5 4 (4)
Hydrangea macrophylla Deep Purple Dance ('Schrolla02') (PBR) (Music Series)
Hydrangea macrophylla Deep Purple Dance ('Schrolla02')(PBR) (Music Series)
£19.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (1)
Hydrangea macrophylla Love ('Youme H1917') (PBR)
Hydrangea macrophylla Love ('Youme H1917') (PBR)
£24.99
available to order from summer
Hydrangea macrophylla Midnight Pearl ('Hokomamipe') (PBR)
Hydrangea macrophylla Midnight Pearl ('Hokomamipe') (PBR)
£24.99
available to order from summer
Hydrangea paniculata Fire Light ('Smhpfl') (PBR)
Hydrangea paniculata Fire Light ('Abetwo') (PBR)
£49.99
available to order from summer
Hydrangea paniculata Groundbreaker Greeny ('LC NO24') (PBR)

New

Hydrangea paniculata Groundbreaker Greeny ('Lc no24') (PBR)
£29.99
available to order from summer
Hydrangea quercifolia Snowflake ('Brido')
Hydrangea quercifolia Snowflake ('Brido')
£27.99
available to order from summer
Itea ilicifolia
Itea ilicifolia
£44.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (1)
Lavandula angustifolia Miss Katherine

New

Lavandula angustifolia 'Miss Katherine'
£19.99
available to order from summer
Magnolia grandiflora Little Gem
Magnolia grandiflora 'Little Gem'
From £89.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (1)
Vinca minor Azurea Flore Pleno
Vinca minor 'Azurea Flore Pleno'
£17.99
available to order from summer
Buddleja Little Pink (’BotEx 005’) (PBR) (Butterfly Candy Series)
Buddleja Little Pink (’BotEx 005’) (PBR) (Butterfly Candy Series)
£26.99
sold out
0 star 1 star 1 star 1 star 1 star (4)
Callistemon Inferno ('Yanferno') (PBR)
Callistemon Inferno ('Yanferno') (PBR)
£26.99
sold out
Hibiscus syriacus Marina
Hibiscus syriacus 'Marina'
£29.99
sold out
Hydrangea Preziosa
Hydrangea 'Preziosa'
From £24.99
sold out
Hydrangea aspera Hot Chocolate ('Haopr012') (PBR)
Hydrangea aspera Hot Chocolate ('Haopr012') (PBR)
£29.99
sold out
Hypericum × inodorum Magical Beauty ('Kolmbeau') (PBR) (Magical Series)
Hypericum × inodorum Magical Beauty ('Kolmbeau') (PBR)
£24.99
sold out
Mahonia eurybracteata subsp. ganpinensis Meteor ('Hillmah') (PBR)
Mahonia eurybracteata subsp. ganpinensis Meteor ('Hillmah') (PBR)
£59.99
sold out
Antique peach dahlia collection
Antique peach dahlia collection
From £30.45
available to order from winter
Berry dahlia collection

Best Seller

Berry dahlia collection
From £29.75
available to order from winter
Bruised dahlia collection
Bruised dahlia collection
From £16.99
available to order from winter
Burnt sugar dahlia collection
Burnt sugar dahlia collection
From £18.95
available to order from winter
Chocolate orange dahlia collection
Chocolate orange dahlia collection
From £17.75
available to order from winter
Coffee and cream dahlia collection
Coffee & cream dahlia collection
From £23.95
available to order from winter
Last days of summer dahlia collection
Last days of summer dahlia collection
From £23.95
available to order from winter
Peach dahlia collection
Peach dahlia collection
From £17.75
available to order from winter
Pink champagne dahlia collection

Best Seller

Pink champagne dahlia collection
From £27.45
available to order from winter
Bees and butterflies dahlia collection

Best Seller

Bees & butterflies dahlia collection
From £23.95
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)
Purple dahlia collection
Purple dahlia collection
£17.75
available to order from winter
The Laundry Garden jewel dahlia collection
The Laundry Garden jewel dahlia collection
From £17.75
available to order from winter
1 star 1 star 1 star 1 star 1 star (1)
Ashley's balcony 5 varieties dahlia collection
Ashley's balcony 5 varieties dahlia collection
From £29.95
available to order from winter
Ashley's balcony dahlia collection
Ashley's balcony dahlia collection
From £17.95
available to order from winter
Ashley's flight of the butterflies dahlia collection
Ashley's flight of the butterflies dahlia collection
From £29.25
available to order from winter
Award-winning border favourite dahlia collection
Award-winning border favourite dahlia collection
From £15.99
available to order from winter
Award-winning dahlia collection for pots
Award-winning dahlia collection for pots
From £17.75
available to order from winter
Jewel garden dahlia collection
Jewel garden dahlia collection
From £23.75
available to order from winter
John's pollinator 5 varieties dahlia collection
John's pollinator 5 varieties dahlia collection
From £28.45
available to order from winter
John's pollinator dahlia collection
John's pollinator dahlia collection
From £17.75
available to order from winter
Lucy's go your own way 3 varieties dahlia collection
Lucy's 'Go your own way' 3 varieties dahlia collection
From £17.95
available to order from winter
Lucy's border dahlia collection
Lucy's border dahlia collection
From £29.95
available to order from winter
Lucy's get off my cloud dahlia collection
Lucy's get off my cloud dahlia collection
From £23.75
available to order from winter
Lucy's go your own way 5 varieties dahlia collection
Lucy's go your own way 5 varieties dahlia collection
From £28.95
available to order from winter
Tangerine twist 3 varieties dahlia collection
Tangerine twist 3 varieties dahlia collection
From £16.99
available to order from winter
Tangerine twist 5 varieties dahlia collection
Tangerine twist 5 varieties dahlia collection
From £28.95
available to order from winter
Velvet dahlia collection
Velvet dahlia collection
From £23.75
available to order from winter
A tale of summer blooms dahlia collection
A tale of summer blooms dahlia collection
From £18.95
available to order from winter
Botanical Tales dahlia collection
Botanical Tales dahlia collection
From £17.75
available to order from winter
Burnt orange dahlia collection
Burnt orange dahlia collection
From £15.99
available to order from winter
Candyfloss dahlia collection
Candyfloss dahlia collection
From £23.95
available to order from winter
Coffee and cream 5 varieties dahlia collection
Coffee & cream 5 varieties dahlia collection
From £29.95
available to order from winter
Cutting garden dahlia collection
Cutting garden dahlia collection
From £28.95
available to order from winter
Mulberry twirl dahlia collection
Mulberry twirl dahlia collection
From £29.25
available to order from winter
Pastel antique dahlia collection
Pastel antique dahlia collection
From £15.99
available to order from winter
Plums and peaches dahlia collection
Plum & peaches dahlia collection
From £12.90
available to order from winter
Proud Mary dahlia collection
Proud Mary dahlia collection
From £23.25
available to order from winter
Velvet 5 varieties dahlia collection
Velvet 5 varieties dahlia collection
From £29.75
available to order from winter
Agapanthus collection
Agapanthus collection
From £12.95
available to order from winter
Award-winning crocosmia collection
Award-winning crocosmia collection
From £18.95
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
Classic Canna collection
Classic canna collection
From £28.95
available to order from winter
Crocosmia collection
Crocosmia collection
From £17.95
available to order from winter
Scented begonia collection
Fragrant begonia collection
From £14.95
available to order from winter
Hedychium collection
Hedychium collection
From £26.95
available to order from winter
Nerine collection
Nerine collection
From £14.95
available to order from winter
Tropicanna Cannas
Tropicanna canna collection
From £33.95
available to order from winter
Dahlia Ambition
Dahlia 'Ambition'
From £5.99
available to order from winter
0.75 star 1 star 1 star 1 star 1 star (12)
Dahlia American Dawn
Dahlia 'American Dawn'
From £5.49
available to order from winter
0.5 star 1 star 1 star 1 star 1 star (18)
Dahlia Arabian Night
Dahlia 'Arabian Night'
From £5.99
available to order from winter
0.75 star 1 star 1 star 1 star 1 star (6)
Dahlia Babylon Brons
Dahlia 'Babylon Brons'
From £5.99
available to order from winter
Dahlia Bayou (PBR)
Dahlia 'Bayou' (PBR)
From £5.99
available to order from winter
1 star 1 star 1 star 1 star 1 star (3)
Dahlia Bishop of Canterbury (PBR)
Dahlia 'Bishop of Canterbury' (PBR)
From £5.79
available to order from winter
1 star 1 star 1 star 1 star 1 star (3)
Dahlia Bishop of Dover
Dahlia 'Bishop of Dover'
From £5.99
available to order from winter
0.75 star 1 star 1 star 1 star 1 star (3)
Dahlia Bishop of Llandaff
Dahlia 'Bishop of Llandaff'
From £5.99
available to order from winter
0.5 star 1 star 1 star 1 star 1 star (15)
Dahlia Bishop of Oxford
Dahlia 'Bishop of Oxford'
From £5.79
available to order from winter
0 star 1 star 1 star 1 star 1 star (1)
Dahlia Black Jack
Dahlia 'Black Jack'
From £5.99
available to order from winter
1 star 1 star 1 star 1 star 1 star (1)
Dahlia Boom Boom White
Dahlia 'Boom Boom White'
From £5.99
available to order from winter
0.5 star 1 star 1 star 1 star 1 star (13)
Dahlia Break Out
Dahlia 'Break Out'
From £5.99
available to order from winter
Dahlia Burlesca
Dahlia 'Burlesca'
From £5.79
available to order from winter
Dahlia Cafe au Lait Twist
Dahlia 'Cafe au Lait Twist'
From £5.99
available to order from winter
Dahlia Cafe au Lait Royal
Dahlia 'Café au Lait Royal'
From £5.99
available to order from winter
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