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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.

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Used at RHS Chelsea Flower Show
Kitchen garden planting guidelines
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Showing Flowering month : September clear all
86 items
Erigeron karvinskianus

Best Seller

30% off

Erigeron karvinskianus
From £3.99
approx 100 seeds
9cm pot
3 × approx 100 seeds
2 litre pot
+ 3 more available
0.75 star 1 star 1 star 1 star 1 star 4.8 5 233 (233)
Salvia nemorosa Caradonna

Best Seller

Salvia nemorosa 'Caradonna'
From £9.99
9cm pot
2 litre pot
3 × 9cm pots
6 × 9cm pots
+ 1 more available
0.75 star 1 star 1 star 1 star 1 star 4.8 5 81 (81)
Verbena bonariensis

Best Seller

Verbena bonariensis
From £3.49
approx 250 seeds
9cm pot
3 × packets (approx 750 seeds)
2 litre pot
+ 3 more available
0.75 star 1 star 1 star 1 star 1 star 4.8 5 169 (169)
Perovskia Blue Spire

Best Seller

Perovskia 'Blue Spire'
From £7.99
9cm pot
3 × 9cm pots
2 litre pot
6 × 9cm pots
+ 2 more available
0.75 star 1 star 1 star 1 star 1 star 4.7 5 49 (49)
Stipa tenuissima

Best Seller

Stipa tenuissima
From £3.79
approx 30 seeds
9cm pot
2 litre pot
3 × 9cm pots
+ 2 more available
0.75 star 1 star 1 star 1 star 1 star 4.8 5 60 (60)
Salvia × sylvestris Schneehügel

Best Seller

Salvia × sylvestris 'Schneehügel'
From £9.99
9cm pot
3 × 9cm pots
6 × 9cm pots
0.25 star 1 star 1 star 1 star 1 star 4.1 5 7 (7)
Helenium Waltraut

30% off

Helenium 'Waltraut'
From £7.69
9cm pot
3 × 9cm pots
6 × 9cm pots
0.5 star 1 star 1 star 1 star 1 star 4.4 5 14 (14)
Rudbeckia subtomentosa Henry Eilers
Rudbeckia subtomentosa 'Henry Eilers'
From £11.99
9cm pot
3 × 9cm pots
1 star 1 star 1 star 1 star 1 star 5.0 5 3 (3)
Salvia Lake Como ('Tl1017') (Salgoon Series) (PBR)

New

40% off

Salvia Lake Como ('Tl1017') (Salgoon Series) (PBR)
From £6.59
9cm pot
3 × 9cm pots
6 × 9cm pots
Agastache and Helenium plant combination

30% off

Agastache & Helenium plant combination
£59.94 £50.05
6 × plants | 3 of each
Moody blues plant combination
Moody blues plant combination
£27.97
3 × plants
Pastel haze plant combination
Oenothera & Perovskia plant combination
£50.94
6 × plants | 3 of each
Opposites attract plant combination
Opposites attract plant combination
£53.94
6 × plants | 3 of each
Solanum crispum Glasnevin
Solanum crispum 'Glasnevin'
From £17.99
3 litre pot | 60cm cane
0.5 star 1 star 1 star 1 star 1 star 4.5 5 8 (8)
Clematis Multi Blue
Clematis 'Multi Blue'
From £14.99
3 litre pot | 60cm cane
0 star 0 star 0 star 1 star 1 star 2.0 5 1 (1)
Clematis Bridgewater ('EviGsy155') (PBR)
Clematis Bridgewater ('EviGsy155') (PBR)
£34.99
3 litre pot | 60cm cane
Clematis Sally ('Evipo077') (PBR) (Boulevard Series)
Clematis Sally ('Evipo077') (PBR) (Boulevard Series)
£27.99
3 litre pot | 60cm cane
Perovskia Little Spire (PBR)
Perovskia 'Little Spire' (PBR)
From £7.99
9cm pot
3 × 9cm pots
0.5 star 1 star 1 star 1 star 1 star 4.5 5 8 (8)
Award-winning hardy cyclamen collection
Award-winning hardy cyclamen collection
From £25.95
1 × collection | 9 corms
2 + 1 FREE collections | 27 corms
Calendula officinalis
Calendula officinalis
£2.99
approx 100 seeds
0.25 star 1 star 1 star 1 star 1 star 4.3 5 4 (4)
Calendula officinalis Indian Prince (Prince Series)
Calendula officinalis 'Indian Prince' (Prince Series)
£2.69
approx 100 seeds
0.75 star 1 star 1 star 1 star 1 star (5)
Helianthus annuus Ruby Eclipse

New

Helianthus annuus 'Ruby Eclipse'
£2.99
approx 20 seeds
Tropaeolum majus Climbing Mixed
nasturtium - Tropaeolum majus 'Climbing Mixed'
£2.49
approx 40 seeds
Calendula officinalis Sherbet Fizz
Calendula officinalis 'Sherbet Fizz'
£2.99
approx 100 seeds
0 star 1 star 1 star 1 star 1 star (1)
Helianthus annuus Claret

New

Helianthus annuus 'Claret'
£3.49
approx 20 seeds
Helianthus annuus Ms Mars
Helianthus annuus 'Ms Mars'
£2.99
approx 20 seeds
Helianthus annuus ProCut White Lite (ProCut Series)

New

Helianthus annuus 'ProCut White Lite' (ProCut Series)
£3.49
approx 15 seeds
Helianthus annuus Red Sun

New

Helianthus annuus 'Red Sun'
£3.49
approx 25 seeds
Tropaeolum majus Black Velvet (Tom Thumb Series)
nasturtium - Tropaeolum majus 'Black Velvet' (Tom Thumb Series)
£2.69
approx 30 seeds
1 star 1 star 1 star 1 star 1 star (5)
Tropaeolum majus Ladybird Rose
nasturtium - Tropaeolum majus 'Ladybird Rose'
£3.49
approx 30 seeds
Calendula officinalis Orange King
Calendula officinalis 'Orange King'
£2.49
approx 150 seeds
Calendula officinalis Snow Princess
Calendula officinalis 'Snow Princess'
£2.89
approx 100 seeds
Helianthus Tall Single
Helianthus 'Tall Single'
£2.49
approx 50 seeds
1 star 1 star 1 star 1 star 1 star (2)
Helianthus annuus Taiyo

New

Helianthus annuus 'Taiyo'
£3.49
approx 30 seeds
Helianthus annuus Teddy Bear

New

Helianthus annuus 'Teddy Bear'
£2.49
approx 40 seeds
1 star 1 star 1 star 1 star 1 star (1)
Helianthus debilis Soluna Lemon

30% off

Helianthus debilis 'Soluna Lemon'
£3.49 £2.44
approx 30 seeds
1 star 1 star 1 star 1 star 1 star (1)
Tropaeolum Baby Rose
nasturtium - Tropaeolum 'Baby Rose'
£2.99
approx 30 seeds
1 star 1 star 1 star 1 star 1 star (1)
Tropaeolum majus Alaska Series

30% off

nasturtium - Tropaeolum majus 'Alaska Series'
£2.49 £1.74
approx 40 seeds
1 star 1 star 1 star 1 star 1 star (3)
Tropaeolum majus Cherry Rose Jewel
nasturtium - Tropaeolum majus 'Cherry Rose Jewel'
£3.99
approx 30 seeds
Tropaeolum majus Empress of India
nasturtium - Tropaeolum majus 'Empress of India'
£3.39
approx 35 seeds
1 star 1 star 1 star 1 star 1 star (1)
Tropaeolum minus Bloody Mary
nasturtium - Tropaeolum minus 'Bloody Mary'
£3.89
approx 30 seeds
1 star 1 star 1 star 1 star 1 star (1)
Phacelia tanacetifolia
Phacelia tanacetifolia - green manure
£2.89
25m² pack
1 star 1 star 1 star 1 star 1 star (3)
Limonium sinuatum QIS White
statice 'White'
£3.49
approx 100 seeds
Tagetes patula Burning Embers
Tagetes patula 'Burning Embers'
£2.39
approx 50 seeds
Tagetes tenuifolia Golden Gem

30% off

Tagetes tenuifolia 'Golden Gem'
£2.99 £2.09
approx 225 seeds
edible flower petal collection
edible flower petal collection
£12.55
5 × packets | seeds
Helianthus annuus Desire Red

30% off

Helianthus annuus 'Desire Red'
£3.99 £2.79
approx 10 seeds
Helianthus debilis Soluna Bronze
Helianthus debilis 'Soluna Bronze'
£3.49
approx 30 seeds
Limnanthes douglasii
Limnanthes douglasii
£2.49
approx 125 seeds
1 star 1 star 1 star 1 star 1 star (1)
Tagetes patula Strawberry Blonde

New

Tagetes patula 'Strawberry Blonde'
From £3.79
approx 50 seeds
Phalaenopsis Nantes
Phalaenopsis Nantes | Orchid
From £29.99
12cm pot | 60cm tall
with white pot
with terracotta pot
with verdigris pot
Lavandula angustifolia Hidcote

Best Seller

Lavandula angustifolia 'Hidcote'
From £7.99
available to order from autumn
0.5 star 1 star 1 star 1 star 1 star (102)
Pollinator's blue mini-border collection
Pollinator's blue mini-border collection
£64.99
available to order from autumn
Campanula lactiflora Loddon Anna
Campanula lactiflora 'Loddon Anna'
From £8.99
available to order from autumn
0.75 star 1 star 1 star 1 star 1 star (8)
Contemporary plant combination
Contemporary plant combination
£43.96 £40.66
available to order from autumn
Dry sun plant combination
Dry sun plant combination
£29.96
sold out
Lythrum and Campanula plant combination
Lythrum & Campanula plant combination
£53.94 £45.85
available to order from autumn
Echinacea KISMET® Kiwi

New

Echinacea 'KISMET® Kiwi'
From £12.99
available to order from spring 2027
Geranium pratense Black Beauty ('Nodbeauty') (PBR)

New

Geranium pratense Black Beauty ('Nodbeauty') (PBR)
From £9.99
available to order from spring 2027
Alcalthaea suffrutescens Parkfrieden

New

× Alcalthaea suffrutescens 'Parkfrieden'
From £12.99
available to order from autumn
0 star 1 star 1 star 1 star 1 star (1)
Viola Molly Sanderson

New

Viola 'Molly Sanderson'
From £9.99
sold out
Clematis Little Nell
Clematis 'Little Nell'
£27.99
available to order from spring 2027
Clematis Perle d'Azur
Clematis 'Perle d'Azur'
From £14.99
available to order from spring 2027
0.5 star 1 star 1 star 1 star 1 star (10)
Clematis Ernest Markham
Clematis 'Ernest Markham'
From £14.99
available to order from autumn
Clematis Westerplatte
Clematis 'Westerplatte'
£27.95
available to order from autumn
Clematis Amethyst Beauty ('Evipo043') (PBR)
Clematis Amethyst Beauty ('Evipo043') (PBR)
£32.99
available to order from autumn
Last days of summer dahlia collection
Last days of summer dahlia collection
From £23.95
available to order from winter
Bees and butterflies dahlia collection

Best Seller

Bees & butterflies dahlia collection
From £23.95
available to order from winter
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
Velvet dahlia collection
Velvet dahlia collection
From £23.75
available to order from winter
Dahlia Floorinoor

New

Dahlia 'Floorinoor'
From £5.99
available to order from winter
Mulberry twirl dahlia collection
Mulberry twirl dahlia collection
From £29.25
available to order from winter
Velvet 5 varieties dahlia collection
Velvet 5 varieties dahlia collection
From £29.75
available to order from winter
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 Jowey Merel
Dahlia 'Jowey Merel'
From £5.99
available to order from winter
Dahlia Jowey Midnight
Dahlia 'Jowey Midnight'
From £5.99
available to order from winter
Dahlia Labyrinth
Dahlia 'Labyrinth'
From £5.99
available to order from winter
Dahlia Lava Glow
Dahlia 'Lava Glow'
£5.99
available to order from winter
Dahlia Mondriaan
Dahlia 'Mondriaan'
From £5.99
available to order from winter
1 star 1 star 1 star 1 star 1 star (1)
Dahlia Pepita Pink
Dahlia 'Pepita Pink'
From £5.99
available to order from winter
0 star 0 star 1 star 1 star 1 star (1)
Dahlia Japlou

New

Dahlia 'Japlou'
From £6.99
sold out
Pennisetum alopecuroides Little Bunny
Pennisetum alopecuroides 'Little Bunny'
From £9.99
available to order from autumn
Tropaeolum majus Tip Top Apricot

New

nasturtium - Tropaeolum majus 'Tip Top Apricot'
£2.79
available to order from autumn
Tropaeolum majus Milkmaid
nasturtium - Tropaeolum majus 'Milkmaid'
£2.99
available to order from autumn
Lathyrus odoratus Almost Black
Lathyrus odoratus 'Almost Black'
£3.49
available to order from spring 2027

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