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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
Sort by popularity
All items
Showing Flowering month : September clear all
754 items
Begonia Illumination Apricot (Illumination Series)
Begonia 'Illumination Apricot' (Illumination Series)
From £7.99
sold out
0 star 1 star 1 star 1 star 1 star 4.0 5 2 (2)
Calibrachoa Cabaret Early Pink (PBR) (Cabaret Series)
Calibrachoa 'Cabaret Early Pink' (Cabaret Series)
From £7.99
sold out
0.5 star 1 star 1 star 1 star 1 star 4.5 5 2 (2)
Geranium Red Shades
Geranium 'Red Shades'
From £7.99
sold out
0.75 star 1 star 1 star 1 star 1 star 4.8 5 17 (17)
Geranium Showstopper Mixed
Geranium 'Showstopper Mixed'
£39.99
sold out
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Hanging basket bedding plant collection

Best Seller

Hanging basket bedding plant collection
£36.99
sold out
0.5 star 1 star 1 star 1 star 1 star 4.5 5 15 (15)
Impatiens Beacon Select Mixture (Beacon Series)
Impatiens 'Beacon Select Mixture'
£36.99
sold out
0.25 star 1 star 1 star 1 star 1 star 4.3 5 4 (4)
Lobelia Bedding Mixed
Lobelia 'Bedding Mixed'
£34.99
sold out
1 star 1 star 1 star 1 star 1 star 5.0 5 6 (6)
Lobelia Trailing Mixed
Lobelia 'Trailing Mixed'
£34.99
sold out
0.5 star 1 star 1 star 1 star 1 star 4.4 5 7 (7)
Lobelia erinus Crystal Palace
Lobelia erinus 'Crystal Palace'
£34.99
sold out
Lobelia erinus Fountain White (Fountain Series)
Lobelia erinus 'Fountain White' (Fountain Series)
£34.99
sold out
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Nicotiana alata
Nicotiana alata
From £7.99
sold out
1 star 1 star 1 star 1 star 1 star 5.0 5 4 (4)
Petunia Tidal Wave Silver (Tidal Wave Series)
Petunia 'Tidal Wave Silver (Tidal Wave Series)'
£9.99
sold out
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Petunia Surfinia Pink Vein ('Suntosol') (Surfinia Series)
Petunia Surfinia Pink Vein ('Suntosol') (PBR) (Surfinia Series)
From £7.99
sold out
Petunia Surfinia White ('Kesupite') (Surfinia Series)
Petunia Surfinia White ('Kepusite') (Surfinia Series)
From £7.99
sold out
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Chaenostoma Galactic Mist White

New

Chaenostoma 'Galactic Mist White'
From £7.99
available to order from spring 2027
Euphorbia Silver Fog White Improved
Euphorbia 'Silver Fog White Improved'
From £7.99
available to order from winter
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Lathyrus odoratus Charlie's Angel
Lathyrus odoratus 'Charlie's Angel'
From £3.49
available to order from spring 2027
0.25 star 1 star 1 star 1 star 1 star 4.2 5 5 (5)
Dark and rich sweet pea collection
Dark & rich sweet pea collection
£9.37
available to order from autumn
Lavish and lush sweet pea collection
Lavish & lush sweet pea collection
£9.37
available to order from autumn
Strongly-scented sweet pea collection
Strongly-scented sweet pea collection
£9.27
available to order from autumn
Matthiola longipetala subsp. bicornis

New

Matthiola longipetala subsp. bicornis
£2.99
available to order from autumn
Rudbeckia triloba Prairie Glow

New

Rudbeckia triloba 'Prairie Glow'
£3.99
available to order from autumn
Tropaeolum majus Purple Emperor

New

nasturtium - Tropaeolum majus 'Purple Emperor'
£3.29
sold out
Award-winning sweet pea collection
Award-winning sweet pea collection
£10.27
available to order from spring 2027
Lathyrus odoratus Dorothy Eckford
Lathyrus odoratus 'Dorothy Eckford'
£3.49
available to order from spring 2027
Lathyrus odoratus Almost Black
Lathyrus odoratus 'Almost Black'
£3.49
available to order from spring 2027
Lathyrus odoratus Bobby's Girl
Lathyrus odoratus 'Bobby's Girl'
£3.49
available to order from spring 2027
Geranium Maderense

New

Geranium Maderense
From £3.49
available to order from autumn
Lathyrus odoratus Eclipse
Lathyrus odoratus 'Eclipse'
£3.49
available to order from autumn
Lathyrus odoratus Karen Louise
Lathyrus odoratus 'Karen Louise'
£3.49
available to order from autumn
1 star 1 star 1 star 1 star 1 star (1)
Lathyrus odoratus Lisa Marie
Lathyrus odoratus 'Lisa Marie'
£3.89
available to order from autumn
Lobelia cardinalis
Lobelia cardinalis
£11.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star (3)
Lobelia cardinalis Queen Victoria
Lobelia cardinalis 'Queen Victoria'
From £24.99
available to order from spring 2027
Lobelia siphilitica
Lobelia siphilitica
From £24.99
available to order from spring 2027
Lobelia × speciosa Vedrariensis
Lobelia × speciosa 'Vedrariensis'
From £24.99
available to order from spring 2027
Phalaenopsis Boquetto Passione
Phalaenopsis Boquetto Passione | Orchid
From £44.99
available to order from winter
Camellia sinensis var. sinensis
tea plant
From £19.99
available to order from autumn
0 star 1 star 1 star 1 star 1 star (1)
Phalaenopsis grandiflorum White
Crocus collection
Phalaenopsis grandiflorum White | Orchid
From £22.99
available to order from winter
Hosta Time in a Bottle (PBR)

New

Hosta 'Time in a Bottle' (PBR)
£14.99
available to order from spring 2027
Hydrangea arborescens Incrediball® Stormproof®

New

Hydrangea arborescens Incrediball® 'Stormproof'®
£34.99
available to order from spring 2027
Mahonia Jungle Whisper ® ('BBM9')

New

Mahonia Jungle Whisper® ('BBM9')
£34.99
available to order from spring 2027
Phalaenopsis Bellissimo Amore

Best Seller

Phalaenopsis Bellissimo Amore | Orchid
From £79.99
available to order from winter
1 star 1 star 1 star 1 star 1 star (2)
Phalaenopsis Formidablo Niagra Falls
Phalaenopsis Formidablo Niagra Falls | Orchid
From £69.99
available to order from winter
Humulus lupulus Magnum
Humulus lupulus 'Magnum'
£19.99
available to order from spring 2027
Phalaenopsis White Willd Orchid

Best Seller

Crocus collection
Phalaenopsis White Willd Orchid
From £29.99
available to order from winter
1 star 1 star 1 star 1 star 1 star (2)
Phalaenopsis Alice
Phalaenopsis Alice | Orchid
From £19.99
available to order from winter
Phalaenopsis Elegant Polka Dots
Phalaenopsis Ever-spring Fairy 'Elegant Polka Dots' | Orchid
From £19.99
available to order from winter
Tricyrtis formosana Autumn Glow

New

Tricyrtis formosana 'Autumn Glow'
£12.99
available to order from spring 2027
Agapanthus Fairy Blue ('DWAgHyb21') (PBR)

New

Agapanthus Fairy Blue ('DWAgHyb21') (PBR)
From £12.99
sold out
Althea cannabina

New

Althea cannabina
From £12.99
sold out
Coreopsis verticillata Zagreb

New

Coreopsis verticillata 'Zagreb'
From £9.99
sold out
Petrorhagia illyrica

New

Petrorhagia illyrica
£12.99
sold out
Salvia Blue Sky

New

Salvia 'Blue Sky'
From £9.09
sold out
Salvia Lake Silvretta ('Tl1086') (Salgoon Series) (PBR)

New

Salvia Lake Silvretta ('Tl1086') (Salgoon Series) (PBR)
£12.99
sold out
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