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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
Facing
How much sun
Soil type
Special conditions
Flower colour
Evergreen / deciduous
Fragrance
Attractive to wildlife
Quick growing
Eventual size
Special features
Bedding planting time
Sowing month inside or protected
Sowing month outside
Vegetable harvesting month
Vegetable groups
Ready made borders
Planting combinations
Hardy
Leaf colour
Ground cover
Position
Shape
Soil moisture
Used at RHS Chelsea Flower Show
Kitchen garden planting guidelines
Sort by name
All items
Showing Flowering month : September clear all
371 items
Pelargonium Angeleyes Blueberry ('Pacbluebe') (PBR)

New

20% off

Pelargonium Angeleyes Blueberry ('Pacbluebe') (PBR)
From £6.39
9cm pot
2 + 1 FREE 9cm pots
Pelargonium Angeleyes Cassis

New

20% off

Pelargonium Angeleyes Cassis (Angeleyes Series)
From £6.39
9cm pot
2 + 1 FREE 9cm pots
Pelargonium Angeleyes Magenta

New

Pelargonium Angeleyes Magenta (Angeleyes Series)
From £6.39
available to order from winter
0 star 1 star 1 star 1 star 1 star 4.0 5 1 (1)
Pelargonium fragrans
Pelargonium fragrans
From £6.39
available to order from winter
Pelargonium sidoides
Pelargonium sidoides
From £6.39
available to order from winter
0 star 0.5 star 1 star 1 star 1 star 3.5 5 2 (2)
Persicaria orientalis Cerise Pearls

20% off

Persicaria orientalis 'Cerise Pearls'
£3.99 £3.19
approx 100 seeds
Petunia Designer Bridal Blush (Designer Series)

Up to 40% off

Petunia Designer Bridal Blush Designer Series
From £5.99
9cm pot
2 + 1 FREE 9cm pots
0 star 0 star 1 star 1 star 1 star 3.0 5 4 (4)
Petunia Designer Royal Lace (Designer Series)

20% off

Petunia Designer Royal Lace Designer Series
From £6.39
9cm pot
2 + 1 FREE 9cm pots
Petunia Easy Wave Silver ('Pas1016992') (Easy Wave Series)
Petunia Easy Wave Silver ('Pas1016992') (Surfinia Series)
From £6.39
available to order from winter
0.5 star 1 star 1 star 1 star 1 star 4.5 5 2 (2)
Petunia multiflora Shock Wave Deep Purple ('Pas933531')
Petunia Shock Wave Deep Purple ('Pas933531')
£9.99 £5.99
sold out
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Petunia Double Pirouette Series
Petunia 'Double Pirouette Series'
£36.99 £18.50
sold out
0.75 star 1 star 1 star 1 star 1 star 4.8 5 6 (6)
Petunia Tidal Wave mix
Petunia 'Tidal Wave mix'
£44.99 £22.50
sold out
Petunia Tidal Wave Silver (Tidal Wave Series)
Petunia 'Tidal Wave Silver (Tidal Wave Series)'
£9.99 £7.99
sold out
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Petunia Tumbelina Compact Julianna

20% off

Petunia 'Tumbelina Compact Julianna'
From £6.39
9cm pot
2 + 1 FREE 9cm pots
Petunia Tumbelina Compact Sophia

20% off

Petunia 'Tumbelina Compact Sophia'
From £6.39
9cm pot
2 + 1 FREE 9cm pots
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Petunia Tumbelina Compact Victoria

20% off

Petunia 'Tumbelina Compact Victoria'
From £6.39
9cm pot
2 + 1 FREE 9cm pots
Petunia Black Velvet ('Balpevac') (PBR)

Up to 40% off

Petunia Black Velvet ('Balpevac') (PBR)
From £6.39
9cm pot
2 + 1 FREE 9cm pots
0.75 star 1 star 1 star 1 star 1 star 4.7 5 6 (6)
Petunia Easy Wave Red Velour ('Pas933560') (Easy Wave Series)
Petunia Easy Wave Red Velour ('Pas933560') (Easy Wave Series)
From £6.39
available to order from winter
Petunia Surfinia Deep Red ('Sunsurf Akatora') (PBR) (Surfinia Series)
Petunia Surfinia Deep Red ('Sunsurf Akatora') (PBR) (Surfinia Series)
From £6.39
available to order from winter
Petunia Surfinia Heavenly Blue (Surfinia Series)
Petunia Surfinia Heavenly Blue (Surfinia Series)
From £6.39
available to order from winter
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Petunia Surfinia Hot Pink (Surfinia Series)
Petunia Surfinia Hot Pink (Surfinia Series)
From £6.39
available to order from winter
1 star 1 star 1 star 1 star 1 star (1)
Petunia Surfinia Lime ('Keiyeul') (PBR) (Surfinia Series)
Petunia Surfinia Lime ('Keiyeul') (PBR) (Surfinia Series)
From £6.39
available to order from winter
1 star 1 star 1 star 1 star 1 star (4)
Petunia Surfinia Pink Vein ('Suntosol') (Surfinia Series)
Petunia Surfinia Pink Vein ('Suntosol') (PBR) (Surfinia Series)
From £6.39
sold out
Petunia Surfinia Purple (Surfinia Series)
Petunia Surfinia Purple (Surfinia Series)
From £6.39
available to order from winter
Petunia Surfinia White ('Kesupite') (Surfinia Series)
Petunia Surfinia White ('Kepusite') (Surfinia Series)
From £6.39
sold out
1 star 1 star 1 star 1 star 1 star (1)
Petunia Tidal Wave Red Velour ('Pas1085269') (Tidal Wave Series)
Petunia Tidal Wave Red Velour ('Pas1085269') (Tidal Wave Series)
£9.99 £7.99
sold out
0.75 star 1 star 1 star 1 star 1 star (6)
Phlox drummondii Cherry Caramel

20% off

Phlox drummondii 'Cherry Caramel'
£3.49 £2.79
approx 200 seeds
1 star 1 star 1 star 1 star 1 star (1)
Phlox drummondii Crème Brûlée

20% off

Phlox drummondii 'Crème Brûlée'
£2.49 £1.99
approx 200 seeds
1 star 1 star 1 star 1 star 1 star (1)
Phlox drummondii Sugar Stars

20% off

Phlox drummondii 'Sugar Stars'
£3.49 £2.79
approx 300 seeds
Pink and purple container plant collection
Pink & purple container plant collection
£23.98 £13.29
sold out
Pink mist container plant collection

20% off

Pink mist container plant collection
£31.96 £25.57
1 x bedding collection | 6 × 9cm plants
Purple sunshine container plant collection
Purple sunshine container plant collection
£31.96 £25.57
available to order from winter
Royal flush container plant collection
Royal flush container plant collection
£31.96 £25.57
available to order from winter
Ruffling skies cutting garden collection

20% off

Ruffling skies cutting garden collection
£15.05 £12.04
1 × collection
Salvia elegans

20% off

sage - pineapple
From £6.39
9cm pot
2 + 1 FREE 9cm pots
Salvia Sea of Butterflies mixed
Salvia farinacea Sea of Butterflies mixed
£29.99 £15.00
sold out
0 star 1 star 1 star 1 star 1 star (5)
Salvia farinacea Victoria Blue Bicolour

20% off

Salvia farinacea 'Victoria Blue Bicolour'
From £6.39
9cm pot
2 + 1 FREE 9cm pots
Salvia Mystic Spires Blue ('Balsalmisp')
Salvia Mystic Spires Blue ('Balsalmisp')
From £6.39
available to order from winter
1 star 1 star 1 star 1 star 1 star (2)
Salvia Victoria Blue ('Vivisal') (PBR)

20% off

Salvia Victoria Blue ('Vivisal') (PBR)
From £6.39
9cm pot
2 + 1 FREE 9cm pots
Salvia viridis

New

20% off

Salvia viridis
£2.99 £2.39
approx 300 seeds
Saponaria ocymoides

New

20% off

Saponaria ocymoides
From £9.59
9cm pot
3 × 9cm pots
Simple white cutting garden collection

20% off

Simple white cutting garden collection
£5.88 £4.70
1 × collection
Limonium sinuatum QIS Apricot

20% off

statice 'Apricot'
£4.79 £3.83
approx 100 seeds
Limonium sinuatum QIS White

20% off

statice 'White'
£3.49 £2.79
approx 100 seeds
Stipa tenuissima

Best Seller

20% off

Stipa tenuissima
From £3.03
approx 30 seeds
9cm pot
2 litre pot
3 × 9cm pots
+ 1 more available
0.75 star 1 star 1 star 1 star 1 star (57)
Stocks Fragrance Mixed (10 Week Mixed)
Stocks 'Fragrance Mixed'
£29.99 £15.00
available to order from winter
0.25 star 1 star 1 star 1 star 1 star (10)
Sugared almonds cutting garden collection
Sugared almonds cutting garden collection
£28.62 £22.32
available to order from summer
Summer nights container plant collection
Summer nights container plant collection
£31.96 £25.57
available to order from winter
Summer nights cutting garden collection

20% off

Summer nights cutting garden collection
£28.43 £22.74
1 × collection
Summer pudding cutting garden collection

20% off

Summer pudding cutting garden collection
£28.53 £22.82
1 × collection
Sunburst container plant collection
Sunburst container plant collection
From £12.79
sold out
Lathyrus odoratus Old Fashioned mixed

New

20% off

sweet pea 'Old Fashioned mixed'
£2.99 £2.39
approx 30 seeds
Sweet pinks container plant collection
Sweet pinks container plant collection
£21.98 £12.09
sold out
Tagetes patula Burning Embers

20% off

Tagetes patula 'Burning Embers'
£2.39 £1.91
approx 50 seeds
Tagetes patula Strawberry Blonde

New

Up to 50% off

Tagetes patula 'Strawberry Blonde'
From £3.03
approx 50 seeds
Tagetes tenuifolia Golden Gem

20% off

Tagetes tenuifolia 'Golden Gem'
£2.99 £2.39
approx 225 seeds
The light before dawn container plant collection
The light before dawn container plant collection
From £21.59
sold out
0 star 0.75 star 1 star 1 star 1 star (3)
Thunbergia alata SunEyes Rose Sensation
Thunbergia alata 'SunEyes Rose Sensation'
£14.99 £11.99
sold out
1 star 1 star 1 star 1 star 1 star (3)
Thunbergia alata Susie Orange with Black Eye (Susie Series)

20% off

Thunbergia alata 'Susie Orange with Black Eye' (Susie Series)
£2.89 £2.31
approx 30 seeds
0 star 0 star 1 star 1 star 1 star (2)
Thunbergia alata Susie White Black Eye (Susie Series)
Thunbergia alata 'Susie White Black Eye' (Susie Series)
£12.99 £7.79
available to order from winter
0 star 1 star 1 star 1 star 1 star (3)
Tropicanna Cannas
Tropicanna canna collection
From £27.16
available to order from winter
Verbena Enchantment Purple (Enchantment Series)

Up to 50% off

Verbena 'Enchantment Purple' (Enchantment Series)
From £5.50
9cm pot
2 + 1 FREE 9cm pots
0.5 star 1 star 1 star 1 star 1 star (2)
Verbena Enchantment White (Enchantment Series)
Verbena 'Enchantment White' (Enchantment Series)
£10.99 £6.59
sold out
1 star 1 star 1 star 1 star 1 star (3)
Verbena Showboat Dark Red (Showboat Series)
Verbena 'Showboat Dark Red' (Showboat Series)
£10.99 £5.50
sold out
1 star 1 star 1 star 1 star 1 star (2)
Verbena Showboat Magenta (Showboat Series)

New

Verbena 'Showboat Magenta' (Showboat Series)
£10.99 £5.50
available to order from winter
0 star 1 star 1 star 1 star 1 star (2)
Verbena Showboat Midnight (Showboat Series)

Up to 40% off

Verbena 'Showboat Midnight' (Showboat Series)
From £6.39
9cm pot
2 + 1 FREE 9cm pots
0 star 0.5 star 1 star 1 star 1 star (4)
Verbena Endurascape Dark Purple ('Balendakle')

Up to 50% off

Verbena Endurascape Dark Purple ('Balendakle')
From £6.39
9cm pot
5 × rooted cuttings
2 + 1 FREE 9cm pots
Verbena Endurascape Hot Pink ('Balendopin')

Up to 40% off

Verbena Endurascape Hot Pink ('Balendopin')
From £6.39
9cm pot
2 + 1 FREE 9cm pots
0.25 star 1 star 1 star 1 star 1 star (3)
Verbena officinalis var. grandiflora Bampton

20% off

Verbena officinalis var. grandiflora 'Bampton'
From £2.79
approx 50 seeds
9cm pot
3 × 9cm pots
1 star 1 star 1 star 1 star 1 star (9)
White pearls container plant collection
White pearls container plant collection
£20.98 £11.59
available to order from winter
0 star 1 star 1 star 1 star 1 star (1)
Zizia aurea

New

Zizia aurea
£3.49 £2.79
available to order from summer
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