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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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All items
Showing Flowering month : September clear all
1814 items
Sanguisorba Blackthorn

New

Sanguisorba 'Blackthorn'
From £17.99
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 Cherry Helen
Verbascum 'Cherry Helen'
From £12.99
available to order from spring 2027
0.5 star 1 star 1 star 1 star 1 star 4.5 5 2 (2)
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
Agapanthus BlackJack ('Dwaghyb02') (PBR)
Agapanthus BlackJack ('Dwaghyb02') (PBR)
From £16.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Anemone Ruffled Swan ('Macane007') (PBR)
Anemone Ruffled Swan ('Macane007') (PBR)
From £14.99
available to order from summer
Centranthus ruber Albus
Centranthus ruber 'Albus'
From £8.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 4.9 5 9 (9)
Coreopsis Fool's Gold

New

Coreopsis 'Fool's Gold'
From £11.99
available to order from summer
Cosmos atrosanguineus Chocamocha ('Thomocha') (PBR)
Cosmos atrosanguineus Chocamocha ('Thomocha') (PBR)
From £9.99
available to order from summer
0.75 star 1 star 1 star 1 star 1 star 4.8 5 12 (12)
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 summer
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Echinacea Flame Thrower (PBR)
Echinacea 'Flame Thrower' (PBR)
From £15.99
available to order from summer
0 star 0.5 star 1 star 1 star 1 star 3.4 5 8 (8)
Echinacea Harvest Moon (PBR) (Big Sky Series)
Echinacea 'Harvest Moon' (PBR) (Big Sky Series)
From £14.99
available to order from summer
Echinacea Hot Lava (PBR)
Echinacea 'Hot Lava' (PBR)
From £14.99
available to order from summer
0.5 star 1 star 1 star 1 star 1 star 4.5 5 4 (4)
Eryngium × zabelii Jos Eijking
Eryngium × zabelii 'Jos Eijking'
From £12.99
available to order from summer
0.25 star 1 star 1 star 1 star 1 star 4.3 5 4 (4)
Eutrochium maculatum (Atropurpureum Group) Purple Bush
Eutrochium maculatum (Atropurpureum Group) 'Purple Bush'
From £9.99
available to order from summer
0.5 star 1 star 1 star 1 star 1 star 4.5 5 8 (8)
Glandularia Claret
Glandularia 'Claret'
From £7.99
available to order from summer
Hylotelephium spectabile Stardust
Hylotelephium spectabile 'Stardust'
From £17.99
available to order from summer
0.75 star 1 star 1 star 1 star 1 star 4.8 5 10 (10)
Kniphofia Ember Glow ('Tneg') (PBR) (Glow Series)
Kniphofia Ember Glow ('Tneg') (PBR) (Glow Series)
From £14.99
available to order from summer
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Oenothera lindheimeri Cherry Brandy ('Gauchebra') (PBR)
Oenothera lindheimeri Cherry Brandy ('Gauchebra')
From £8.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (1)
Origanum Kent Beauty
Origanum 'Kent Beauty'
From £9.99
available to order from summer
0.5 star 1 star 1 star 1 star 1 star (7)
Penstemon Arabesque Appleblossom
Penstemon 'Arabesque Appleblossom'
From £9.99
available to order from summer
Salvia Lake Como ('Tl1017') (Salgoon Series) (PBR)

New

Salvia Lake Como ('Tl1017') (Salgoon Series) (PBR)
From £10.99
available to order from summer
Salvia Love and Wishes ('Serendip6') (PBR)
Salvia Love and Wishes ('Serendip6') (PBR)
From £9.99
available to order from summer
0.5 star 1 star 1 star 1 star 1 star (6)
Salvia microphylla Cerro Potosi

New

Salvia microphylla 'Cerro Potosi'
From £9.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (1)
Salvia uliginosa
Salvia uliginosa
From £18.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (1)
Sedum collection
Sedum collection
£42.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (8)
Succisa pratensis
Succisa pratensis
From £14.99
available to order from summer
Symphyotrichum novae-angliae Andenken an Alma Pötschke
Symphyotrichum novae-angliae 'Andenken an Alma Pötschke'
From £19.99
available to order from summer
Tulbaghia Purple Eye
Tulbaghia 'Purple Eye'
From £10.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (1)
Tulbaghia violacea
Tulbaghia violacea
From £12.99
available to order from summer
0 star 0 star 0 star 1 star 1 star (1)
Verbascum Clementine
Verbascum 'Clementine'
From £12.99
available to order from summer
0.75 star 1 star 1 star 1 star 1 star (4)
Veronicastrum virginicum Lavendelturm
Veronicastrum virginicum 'Lavendelturm'
From £12.99
available to order from summer
Viola Etain
Viola 'Etain'
From £8.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (1)
Alcalthaea suffrutescens Parkallee
× Alcalthaea suffrutescens 'Parkallee'
From £12.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (2)
Dahlia Cornel
Dahlia 'Cornel'
From £11.99
sold out
Delosperma cooperi Jewel of Desert Grenade (PBR) (Jewel of Desert Series)
Delosperma cooperi 'Jewel of Desert Grenade' (PBR) (Jewel of Desert Series)
£7.99
sold out
1 star 1 star 1 star 1 star 1 star (3)
Echinacea purpurea Pink Double Delight (PBR) (Cone-fections Series)
Echinacea purpurea 'Pink Double Delight' (PBR) (Cone-fections Series)
From £14.99
sold out
0 star 0 star 1 star 1 star 1 star (1)
Hesperantha coccinea Cindy Towe
Hesperantha coccinea 'Cindy Towe'
From £12.99
sold out
Viola Molly Sanderson

New

Viola 'Molly Sanderson'
From £9.99
sold out
Alstroemeria Valley Wild ('Tesvalwild') (Summer Paradise - Valley Series)
Alstroemeria Valley Wild ('Tesvalwild') (Summer Paradise - Valley Series)
From £22.99
available to order from spring 2027
Alstroemeria Inticancha Paraíso ('Tesparai') (PBR) (Inticancha Series)
Alstroemeria Inticancha Paraiso ('Tesparai') (PBR) (Inticancha Series)
From £24.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (2)
Alstroemeria Valley Girl ('Tesvalgirl') (Summer Paradise - Valley Series)
Alstroemeria Valley Girl ('Tesvalgirl') (Summer Paradise - Valley Series)
From £24.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (1)
Clematis Rebecca ('Evipo016') (PBR) (Boulevard Series)
Clematis Rebecca ('Evipo016') (PBR) (Boulevard Series)
£29.99
available to order from spring 2027
0.5 star 1 star 1 star 1 star 1 star (15)
Passiflora caerulea Constance Eliott
Passiflora caerulea 'Constance Eliott'
From £17.99
available to order from spring 2027
0.75 star 1 star 1 star 1 star 1 star (8)
Clematis Princess Diana
Clematis 'Princess Diana'
From £14.99
available to order from summer
0.75 star 1 star 1 star 1 star 1 star (16)
Clematis Jackmanii
Clematis 'Jackmanii'
From £14.99
available to order from spring 2027
0.75 star 1 star 1 star 1 star 1 star (4)
Award-winning honeysuckle collection
Award-winning honeysuckle collection
£44.97
available to order from spring 2027
Award-winning late-summer flowering clematis collection
Award-winning late-summer flowering clematis collection
£44.97
available to order from summer
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
Four seasons clematis collection
Four seasons clematis collection
£62.96
available to order from spring 2027
Lathyrus latifolius collection
Lathyrus latifolius collection
From £29.99
available to order from spring 2027
Passion flower collection
Passion flower collection
£53.97
available to order from spring 2027
Abutilon Canary Bird
Abutilon 'Canary Bird'
£32.99
available to order from spring 2027
Billardiera heterophylla
Billardiera heterophylla
£29.99
available to order from spring 2027
0.5 star 1 star 1 star 1 star 1 star (7)
Clematis Alba Luxurians
Clematis 'Alba Luxurians'
£27.99
available to order from spring 2027
Clematis Betty Corning
Clematis 'Betty Corning'
£26.95
available to order from spring 2027
1 star 1 star 1 star 1 star 1 star (1)
Clematis Blue Eclipse
Clematis 'Blue Eclipse'
£27.99
available to order from spring 2027
Clematis Emilia Plater
Clematis 'Emilia Plater'
£27.99
available to order from spring 2027
Clematis Fond Memories
Clematis 'Fond Memories'
£29.99
available to order from spring 2027
0.25 star 1 star 1 star 1 star 1 star (8)
Clematis Fujimusume
Clematis 'Fujimusume'
£27.99
available to order from spring 2027
Clematis John Huxtable
Clematis 'John Huxtable'
£29.99
available to order from spring 2027
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