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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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Used at Chelsea
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Available items
Showing Flowering month : September clear all
798 items
Buddleja davidii Black Knight

20% off

Buddleja davidii 'Black Knight'
£15.99 - £55.99
2 litre pot In stock (shipped within 2-3 working days)
10 litre pot | 80 - 100cm tall available to order from autumn
0.75 star 1 star 1 star 1 star 1 star 4.8 5 9
Buddleja davidii Royal Red

20% off

Buddleja davidii 'Royal Red'
£18.39 - £55.99
2 litre pot In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
10 litre pot | 80 - 100cm tall available to order from autumn
1 star 1 star 1 star 1 star 1 star 4.9 5 10
Buddleja davidii White Profusion

20% off

Buddleja davidii 'White Profusion'
£15.99 - £55.99
10 litre pot | 80 - 100cm tall In stock (shipped within 2-3 working days)
2 litre pot available to order from autumn
0.75 star 1 star 1 star 1 star 1 star 4.8 5 11
Buddleja Little Lila (’BotEx 004’) (PBR) (Butterfly Candy Series)

20% off

Buddleja Little Lila (’BotEx 004’) (PBR) (Butterfly Candy Series)
£29.99 £23.99
2 litre pot In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Buddleja Little Purple (’BotEx 001’) (PBR) (Butterfly Candy Series)

20% off

Buddleja Little Purple (’BotEx 001’) (PBR) (Butterfly Candy Series)
£29.99 £23.99
2 litre pot In stock (shipped within 2-3 working days)
Buddleja Little Ruby ('BotEx 006') (PBR) (Butterfly Candy Series)

20% off

Buddleja Little Ruby ('BotEx 006') (PBR) (Butterfly Candy Series)
£29.99 £23.99
2 litre pot In stock (shipped within 2-3 working days)
Buddleja Little White (’BotEx 003’) (PBR) (Butterfly Candy Series)

20% off

Buddleja Little White (’BotEx 003’) (PBR) (Butterfly Candy Series)
£29.99 £23.99
2 litre pot In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Buddleja Sugar Plum ('Lonplum') (PBR)

20% off

Buddleja Sugar Plum ('Lonplum') (PBR)
£24.99 £19.99
2 litre pot In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star 4.8 5 15
Buddleja × pikei Unique ('Pmoore12') (PBR)

20% off

Buddleja × pikei Unique ('Pmoore12') (PBR)
£22.99 £18.39
2 litre pot In stock (shipped within 2-3 working days)
0 star 1 star 1 star 1 star 1 star 3.9 5 9
Buddleja × weyeriana Bicolor

20% off

Buddleja × weyeriana 'Bicolor'
£21.99 £17.59
2 litre pot shipped within 2 weeks
0.5 star 1 star 1 star 1 star 1 star 4.6 5 5
Butterfly mat seed carpet

25% off

Butterfly mat seed carpet
£11.99 £8.99
seed mat In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Calendula officinalis

25% off

Calendula officinalis
£2.09 - £5.62
approx 100 seeds In stock (shipped within 2-3 working days)
3 × packets of seeds In stock (shipped within 2-3 working days)
0.25 star 1 star 1 star 1 star 1 star 4.3 5 4
Calendula officinalis Indian Prince (Prince Series)

25% off

Calendula officinalis 'Indian Prince' (Prince Series)
£2.02 - £5.62
approx 100 seeds In stock (shipped within 2-3 working days)
3 × packets of seeds In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star 4.8 5 5
Calendula officinalis Orange King

25% off

Calendula officinalis 'Orange King'
£2.49 £1.87
approx 150 seeds In stock (shipped within 2-3 working days)
Calendula officinalis Sherbet Fizz

25% off

Calendula officinalis 'Sherbet Fizz'
£2.49 £1.87
approx 100 seeds In stock (shipped within 2-3 working days)
Calendula officinalis Snow Princess

25% off

Calendula officinalis 'Snow Princess'
£2.89 £2.17
approx 100 seeds In stock (shipped within 2-3 working days)
Callistephus chinensis King Size Apricot

25% off

Callistephus chinensis 'King Size Apricot'
£2.79 £2.09
approx 50 seeds In stock (shipped within 2-3 working days)
Callistephus chinensis Light Blue

25% off

Callistephus chinensis 'Light Blue'
£2.99 £2.24
approx 100 seeds In stock (shipped within 2-3 working days)
Campanula Rebelle

New

20% off

Campanula 'Rebelle'
£10.39 - £32.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Campanula carpatica f. alba Weisse Clips

20% off

Campanula carpatica f. alba 'Weisse Clips'
£6.39 - £26.39
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
0.25 star 1 star 1 star 1 star 1 star 4.3 5 6
Campanula lactiflora Loddon Anna

20% off

Campanula lactiflora 'Loddon Anna'
£7.19 - £35.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
2 litre pot available to order from autumn
3 × 2 litre pots available to order from autumn
0.5 star 1 star 1 star 1 star 1 star
Campanula lactiflora Prichard's Variety

20% off

Campanula lactiflora 'Prichard's Variety'
£7.19 - £39.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
2 litre pot available to order from autumn
3 × 2 litre pots available to order from autumn
0.5 star 1 star 1 star 1 star 1 star
Campanula trachelium

25% off

Campanula trachelium
£2.99 £2.24
approx 150 seeds In stock (shipped within 2-3 working days)
Carex buchananii Red Rooster

50% off

Carex buchananii 'Red Rooster'
£5.00 - £12.50
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Caryopteris × clandonensis Heavenly Blue

Up to 40%

Caryopteris × clandonensis 'Heavenly Blue'
£5.39 - £22.79
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
0.5 star 1 star 1 star 1 star 1 star
Caryopteris × clandonensis Kew Blue

40% off

Caryopteris × clandonensis 'Kew Blue'
£5.39 - £12.59
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Caryopteris × clandonensis White Surprise (PBR)

20% off

Caryopteris × clandonensis 'White Surprise' (PBR)
£26.99 £21.59
2 litre pot In stock (shipped within 2-3 working days)
Caryopteris × clandonensis Grand Bleu ('Inoveris') (PBR)

20% off

Caryopteris × clandonensis Grand Bleu ('Inoveris') (PBR)
£20.99 £16.79
2 litre pot In stock (shipped within 2-3 working days)
Caryopteris × clandonensis Hint of Gold ('Lisaura') (PBR)

20% off

Caryopteris × clandonensis Hint of Gold ('Lisaura') (PBR)
£22.99 £18.39
2 litre pot In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Caryopteris × clandonensis Sterling Silver ('Lissilv') (PBR)

20% off

Caryopteris × clandonensis Sterling Silver ('Lissilv') (PBR)
£21.40 - £50.39
2 litre pot In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
Nepeta cataria

Up to 25%

catnip / Nepeta cataria
£2.24 - £12.78
approx 150 seeds In stock (shipped within 2-3 working days)
9cm pot available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
1 star 1 star 1 star 1 star 1 star
Ceanothus Autumnal Blue

20% off

Ceanothus 'Autumnal Blue'
£19.99 - £51.99
2 litre pot In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star
Cenolophium denudatum

20% off

Cenolophium denudatum
£11.99 - £47.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Centaurea cyanus

25% off

Centaurea cyanus
£1.87 - £5.25
approx 200 seeds In stock (shipped within 2-3 working days)
3 × packets of seeds In stock (shipped within 2-3 working days)
0.5 star 1 star 1 star 1 star 1 star
Centaurea cyanus Blue Ball

25% off

Centaurea cyanus 'Blue Ball'
£2.99 £2.24
approx 325 seeds In stock (shipped within 2-3 working days)
Centaurea cyanus Classic Fantastic

25% off

Centaurea cyanus 'Classic Fantastic'
£2.99 £2.24
approx 100 seeds In stock (shipped within 2-3 working days)
Centaurea cyanus Classic Magic

25% off

Centaurea cyanus 'Classic Magic'
£2.89 £2.17
approx 100 seeds In stock (shipped within 2-3 working days)
Centaurea cyanus White Ball

25% off

Centaurea cyanus 'White Ball'
£2.49 £1.87
approx 300 seeds In stock (shipped within 2-3 working days)
Centaurea nigra

Up to 25%

Centaurea nigra
£2.24 - £27.99
approx 20 seeds In stock (shipped within 2-3 working days)
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Centaurea scabiosa

25% off

Centaurea scabiosa
£2.99 £2.24
approx 20 seeds In stock (shipped within 2-3 working days)
Centranthus ruber

Up to 50%

Centranthus ruber
£7.19 - £26.39
9cm pot In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
0.25 star 1 star 1 star 1 star 1 star
Centranthus ruber Albus

20% off

Centranthus ruber 'Albus'
£7.19 - £26.39
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Ceratostigma plumbaginoides

20% off

Ceratostigma plumbaginoides
£7.19 - £37.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Cherry creme brûlée cutting garden collection

25% off

Cherry créme brûlée cutting garden collection
£23.73 £17.80
1 × collection In stock (shipped within 2-3 working days)
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