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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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Multibuy packs
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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
1115 items
Edible flower collection seed gift box
Edible flower collection seed gift box
£22.99
gift set
Heritage sweet pea seed gift box
Heritage sweet pea seed gift box
£22.99
gift set
Seedballs wildlife collection
Seedballs wildlife collection
£16.99
set of 6
Streptocarpus Leah
Streptocarpus 'Leah' & ceramic pot cover
£32.99
10cm pot | with 11cm white pot
Scutellaria Appalachian Blues (PBR)

New

Scutellaria 'Appalachian Blues' (PBR)
From £14.99
9cm pot
3 × 9cm pots
Anemone hupehensis var. japonica Prinz Heinrich
Anemone hupehensis var. japonica 'Prinz Heinrich'
From £10.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star 5.0 5 5 (5)
Cottage garden showstoppers mini-border collection
Cottage garden showstoppers mini-border collection
£71.99
available to order from autumn
Pollinator's blue mini-border collection
Pollinator's blue mini-border collection
£64.99
available to order from autumn
Blue spires and spots mini-border collection
Blue spots and spires mini-border collection
£57.99
available to order from spring 2027
Evening sky pollinator mini-border collection
Evening sky pollinator mini-border collection
From £57.99
available to order from autumn
Astrantia Roma (PBR)

Best Seller

Astrantia 'Roma' (PBR)
From £12.99
available to order from autumn
0.5 star 1 star 1 star 1 star 1 star 4.4 5 33 (33)
Campanula poscharskyana
Campanula poscharskyana
From £8.99
available to order from autumn
0.75 star 1 star 1 star 1 star 1 star 4.7 5 3 (3)
Hydrangea Runaway Bride Snow White ('USHYD0405') (PBR)
Hydrangea Runaway Bride Snow White ('USHYD0405') (PBR)
From £44.99
available to order from autumn
0.75 star 1 star 1 star 1 star 1 star 4.8 5 10 (10)
Sesleria autumnalis

Best Seller

Sesleria autumnalis
From £19.99
available to order from autumn
0 star 0 star 1 star 1 star 1 star 3.0 5 2 (2)
Daphne × transatlantica Eternal Fragrance ('Blafra') (PBR)
Daphne × transatlantica Eternal Fragrance ('Blafra') (PBR)
From £27.99
available to order from autumn
0 star 1 star 1 star 1 star 1 star 4.0 5 19 (19)
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 4.6 5 8 (8)
Cynara cardunculus
Cynara cardunculus
From £9.99
available to order from autumn
0.25 star 1 star 1 star 1 star 1 star 4.3 5 15 (15)
Leucanthemum × superbum Snowcap
Leucanthemum × superbum 'Snowcap'
From £11.99
available to order from autumn
0.5 star 1 star 1 star 1 star 1 star 4.5 5 8 (8)
Liriope muscari Monroe White
Liriope muscari 'Monroe White'
From £12.99
available to order from autumn
0 star 0.75 star 1 star 1 star 1 star 3.8 5 23 (23)
Salvia nemorosa Caradonna Pink Inspiration ('Tuitsalv') (PBR)
Salvia nemorosa Caradonna Pink Inspiration ('Tuitsalv') (PBR)
From £9.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Geranium Ann Folkard
Geranium 'Ann Folkard'
From £11.99
available to order from autumn
0.75 star 1 star 1 star 1 star 1 star (17)
Geum Pretticoats Peach ('Tngeupp') (Pretticoats Series) (PBR)
Geum Pretticoats Peach ('Tngeupp') (Pretticoats Series) (PBR)
From £12.99
available to order from spring 2027
1 star 1 star 1 star 1 star 1 star (1)
Campanula lactiflora Prichard's Variety
Campanula lactiflora 'Prichard's Variety'
From £8.99
available to order from autumn
0.25 star 1 star 1 star 1 star 1 star (12)
Helianthus Lemon Queen
Helianthus 'Lemon Queen'
From £9.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star (20)
Nepeta Cat's Pajamas
Nepeta 'Cat's Pajamas'
From £9.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star (2)
Nepeta grandiflora Summer Magic (PBR)
Nepeta grandiflora 'Summer Magic' (PBR)
From £8.99
available to order from autumn
0.75 star 1 star 1 star 1 star 1 star (3)
Rudbeckia fulgida Little Goldstar (PBR)
Rudbeckia fulgida 'Little Goldstar' (PBR)
From £12.99
available to order from autumn
0.5 star 1 star 1 star 1 star 1 star (5)
Penstemon Elmley

New

Penstemon 'Elmley'
From £8.99
available to order from spring 2027
Penstemon Pensham Bilberry Ice (Pensham Series)

New

Penstemon 'Pensham Bilberry Ice' (Pensham Series)
From £8.99
available to order from spring 2027
Penstemon Alice Hindley

New

Penstemon 'Alice Hindley'
From £8.99
available to order from autumn
0 star 1 star 1 star 1 star 1 star (2)
Penstemon Midnight

New

Penstemon 'Midnight'
From £8.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star (2)
Penstemon heterophyllus Heavenly Blue

New

Penstemon heterophyllus 'Heavenly Blue'
From £8.99
available to order from autumn
Border salvia collection

New

Border salvia collection
From £33.17
available to order from autumn
Dry shade plant combination
Dry shade plant combination
£37.96
available to order from autumn
Dry sun plant combination
Dry sun plant combination
£29.96
sold out
Echinops and Achillea plant combination
Echinops & Achillea plant combination
£56.94
available to order from autumn
Edible flowers plant and seed combination
Edible flowers plant & seed combination
£33.26
available to order from autumn
Heavenly Penstemon collection

New

Heavenly Penstemon collection
From £24.27
available to order from autumn
Heliopsis and Miscanthus plant combination
Heliopsis & Miscanthus plant combination
£65.94 £55.15
available to order from autumn
Lavender Hidcote and trough combination
Crocus collection
Lavender Hidcote & trough combination
£63.49
available to order from autumn
Lythrum and Campanula plant combination
Lythrum & Campanula plant combination
£53.94 £45.85
available to order from autumn
Pensham Penstemon collection

New

Pensham Penstemon collection
From £26.97
available to order from spring 2027
Sarah's Chelsea daisy susan combination
Sarah's Chelsea 'daisy susan combination'
From £54.96
available to order from spring 2027
Sarah's Chelsea lavender susan combination
Sarah's Chelsea 'lavender susan combination'
From £56.96
available to order from spring 2027
Sarah's Chelsea pink & lavender combination
Sarah's Chelsea 'pink & lavender combination'
£76.96
available to order from autumn
Sarah's Chelsea pink & lavender combination
Sarah's Chelsea 'pink & lavender combination'
£71.96
available to order from autumn
Sarah's Chelsea silver susan combination
Sarah's Chelsea 'silver susan combination'
From £56.96
available to order from spring 2027
Tom's Chelsea Woodland Sanctuary collection 'Delicate colour'
Tom's Chelsea 'Woodland Sanctuary collection 'Delicate colour''
From £52.96
available to order from autumn
Tom's Chelsea Woodland Sanctuary collection 'Textural tones'
Tom's Chelsea 'Woodland Sanctuary collection 'Textural tones''
From £50.96
available to order from autumn
Tom's Chelsea Woodland Sanctuary collection 'Texture & form'
Tom's Chelsea 'Woodland Sanctuary collection 'Texture & form''
From £40.96
available to order from autumn
Veronicastrum and Hydrangea plant combination
Veronicastrum & Hydrangea plant combination
£101.22
available to order from autumn
Weed-smothering mini-border collection
Weed-smothering mini-border collection
£57.99
available to order from autumn
Dahlia Strawberry Bon Bon (Sweet Candy Series)
Dahlia 'Strawberry Bon Bon' (Sweet Candy Series)
From £14.99
available to order from spring 2027
Echinacea Fried Egg

New

Echinacea 'Fried Egg'
From £14.99
available to order from spring 2027
Echinacea KISMET® Kiwi

New

Echinacea 'KISMET® Kiwi'
From £12.99
available to order from spring 2027
Echinacea Pretty Parasols ('JS Engeltje') (PBR)
Echinacea Pretty Parasols ('JS Engeltje') (PBR)
From £14.99
available to order from spring 2027
0 star 0 star 1 star 1 star 1 star (1)
Geranium nodosum Fielding's Folly
Geranium nodosum 'Fielding's Folly'
From £12.99
available to order from spring 2027
Geranium pratense Cloud Nine (PBR)

New

Geranium pratense 'Cloud Nine' (PBR)
From £9.99
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
Geranium × oxonianum Rose Clair

New

Geranium × oxonianum 'Rose Clair'
From £11.99
available to order from spring 2027
Nemesia denticulata

New

Nemesia denticulata
From £9.99
available to order from spring 2027
1 star 1 star 1 star 1 star 1 star (1)
Oenothera lindheimeri Whiskers Deep Rose
Oenothera lindheimeri 'Whiskers Deep Rose'
From £9.99
available to order from spring 2027
Osteospermum Nairobi Purple
Osteospermum 'Nairobi Purple'
From £9.99
available to order from spring 2027
Romneya coulteri
Romneya coulteri
From £36.99
available to order from spring 2027
0.25 star 1 star 1 star 1 star 1 star (3)
Rudbeckia fulgida Early Bird Gold
Rudbeckia fulgida 'Early Bird Gold'
From £12.99
available to order from spring 2027
Salvia Blue Butterflies

New

Salvia 'Blue Butterflies'
From £9.99
available to order from spring 2027
0.75 star 1 star 1 star 1 star 1 star (7)
Salvia Cream Soda

New

Salvia 'Cream Soda'
From £11.99
available to order from spring 2027
0 star 0 star 1 star 1 star 1 star (1)
Salvia Melba magic® Peach Melba
Salvia Melba Magic® 'Peach Melba'
From £12.99
available to order from spring 2027
1 star 1 star 1 star 1 star 1 star (1)
Salvia nemorosa Crystal Blue (Color Spires Series)
Salvia nemorosa Crystal Blue (Color Spires Series)
From £9.99
available to order from spring 2027
0.5 star 1 star 1 star 1 star 1 star (2)
Salvia × jamensis Violette de Loire ('Barsal') (PBR)

New

Salvia × jamensis Violette de Loire ('Barsal) (PBR)
From £11.99
available to order from spring 2027
Symphyotrichum novae-angliae Helen Picton
Symphyotrichum novae-angliae 'Helen Picton'
From £9.99
available to order from spring 2027
Verbascum Honey Dijon

New

Verbascum 'Honey Dijon'
£12.99
available to order from spring 2027
Verbascum Primrose Path

New

Verbascum 'Primrose Path'
From £12.99
available to order from spring 2027
Verbascum Peach Champagne (PBR)

New

Verbascum Peach Champagne (PBR)
From £12.99
available to order from spring 2027
Anemone Ruffled Swan ('Macane007') (PBR)
Anemone Ruffled Swan ('Macane007') (PBR)
From £14.99
available to order from autumn
0 star 1 star 1 star 1 star 1 star (1)
Asclepias tuberosa

New

Asclepias tuberosa
From £12.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star (1)
Campanula carpatica Blaue Clips
Campanula carpatica 'Blaue Clips'
From £7.99
available to order from autumn
0.5 star 1 star 1 star 1 star 1 star (5)
Chrysanthemum Clara Curtis
Chrysanthemum 'Clara Curtis'
From £9.99
available to order from autumn
Delosperma cooperi Jewel of Desert Garnet (PBR) (Jewel of Desert Series)
Delosperma cooperi 'Jewel of Desert Garnet' (PBR) (Jewel of Desert Series)
From £7.99
available to order from autumn
0.25 star 1 star 1 star 1 star 1 star (9)
Delosperma cooperi Hot Pink Wonder ('Wowdry1') (PBR) (Wheels of Wonder Series)
Delosperma cooperi Hot Pink Wonder('Wowdry1') (Wheels of Wonder Series) (PBR)
From £7.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star (2)
Dianthus Gran's Favourite
Dianthus 'Gran's Favourite'
From £7.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star (4)
Diascia Monhop Pink

New

Diascia 'Monhop Pink'
From £10.99
available to order from autumn
Echinacea Harvest Moon (PBR) (Big Sky Series)
Echinacea 'Harvest Moon' (PBR) (Big Sky Series)
From £14.99
available to order from autumn
Echinacea pallida Hula Dancer
Echinacea pallida 'Hula Dancer'
From £11.99
available to order from autumn
Eryngium × zabelii Jos Eijking
Eryngium × zabelii 'Jos Eijking'
From £12.99
available to order from autumn
0 star 0.75 star 1 star 1 star 1 star (5)
Geranium × oxonianum Katherine Adele
Geranium × oxonianum 'Katherine Adele'
From £12.99
available to order from autumn
Glandularia Claret
Glandularia 'Claret'
From £7.99
available to order from autumn
Heliopsis helianthoides var. scabra Summer Nights
Heliopsis helianthoides var. scabra 'Summer Nights'
From £9.99
available to order from autumn
0.5 star 1 star 1 star 1 star 1 star (7)
Hylotelephium spectabile Stardust
Hylotelephium spectabile 'Stardust'
From £17.99
available to order from autumn
0.75 star 1 star 1 star 1 star 1 star (10)
Iberis Pink Ice
Iberis 'Pink Ice'
From £8.99
available to order from autumn
0.5 star 1 star 1 star 1 star 1 star (4)
Iberis Masterpiece (PBR)
Iberis Masterpiece (PBR)
From £8.99
available to order from autumn
0 star 1 star 1 star 1 star 1 star (4)
Iberis sempervirens Appen-Etz
Iberis sempervirens 'Appen-Etz'
From £8.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star (1)
Kniphofia Poco Sunset (Poco Series)
Kniphofia 'Poco Sunset' (Poco Series)
From £14.99
available to order from autumn
0 star 0 star 0 star 0 star 1 star (1)
Lupinus Chandelier (Band of Nobles Series)
Lupinus 'Chandelier' (Band of Nobles Series)
From £9.99
available to order from autumn
0.25 star 1 star 1 star 1 star 1 star (7)
Oenothera lindheimeri Siskiyou Pink
Oenothera lindheimeri 'Siskiyou Pink'
From £8.99
available to order from autumn
0.75 star 1 star 1 star 1 star 1 star (3)
Origanum Kent Beauty
Origanum 'Kent Beauty'
From £9.99
available to order from autumn
0.5 star 1 star 1 star 1 star 1 star (7)
Origanum laevigatum Herrenhausen
Origanum laevigatum 'Herrenhausen'
From £8.99
available to order from autumn
0.5 star 1 star 1 star 1 star 1 star (5)
Osteospermum In The Pink
Osteospermum 'In The Pink'
From £12.99
available to order from autumn
1 star 1 star 1 star 1 star 1 star (1)
Osteospermum jucundum
Osteospermum jucundum
From £11.99
available to order from autumn
0 star 0 star 0 star 1 star 1 star (1)
Penstemon Rich Ruby

New

Penstemon 'Rich Ruby'
From £8.99
available to order from autumn
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