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.

Quick growing
Vegetable harvesting month
Ready made borders
Planting combinations
Ground cover
Available items
Showing Flowering month : September clear all
1037 items
Buddleja Sugar Plum ('Lonplum') (PBR)

25% off

Buddleja Sugar Plum ('Lonplum') (PBR)
£24.99 £18.74
2 litre pot In stock (shipped within 2-3 working days)
Buddleja × pikei Unique ('Pmoore12') (PBR)

25% off

Buddleja × pikei Unique ('Pmoore12') (PBR)
£22.99 £17.24
2 litre pot In stock (shipped within 2-3 working days)
Buddleja × weyeriana Bicolor

25% off

Buddleja × weyeriana 'Bicolor'
£21.99 £16.49
2 litre pot In stock (shipped within 2-3 working days)
Buddleja × weyeriana Sungold

25% off

Buddleja × weyriana 'Sungold'
£24.99 £18.74
2 litre pot In stock (shipped within 2-3 working days)
Butterfly mat seed carpet

25% off

Butterfly mat seed carpet
£11.99 £8.99
seed mat In stock (shipped within 2-3 working days)
Calamintha nepeta subsp. nepeta Blue Cloud

New

25% off

Calamintha nepeta subsp. nepeta 'Blue Cloud'
£7.49 - £18.74
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
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)
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)
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)
Calibrachoa Bordeaux Star ('Wescacaliborst') (Calitastic Series)

25% off

Calibrachoa Calitastic Bordeaux Star ('Wescacaliborst')
£5.24 - £10.48
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
Calibrachoa Cabaret Early Light Pink Eye (Cabaret Series)

New

25% off

Calibrachoa 'Cabaret Early Light Pink Eye' (Cabaret Series)
£5.24 - £14.98
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
Calibrachoa Can-can Black Cherry (Can-can Series)

25% off

Calibrachoa 'Can-can Black Cherry' (Can-can Series)
£5.24 - £16.48
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
Calibrachoa Can-can Double OrangeTastic (Can-can Series)

New

25% off

Calibrachoa 'Can-can Double OrangeTastic' (Can-can Series)
£5.24 - £19.48
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
Calibrachoa Can-can Double Provence Blue (Can-can Series)

25% off

Calibrachoa 'Can-can Double Provence Blue' (Can-can Series)
£5.24 - £19.48
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
Calibrachoa Cabaret Bright Red ('Balcabrite') (PBR) (Cabaret Series)

25% off

Calibrachoa Cabaret Bright Red ('Balcabrite') (PBR) (Cabaret Series)
£5.24 - £14.98
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
Calibrachoa Cabaret Goodnight Kiss ('Balcabooni') (PBR)

25% off

Calibrachoa Cabaret Goodnight Kiss ('Balcabooni') (PBR)
£5.24 - £14.98
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
Calibrachoa Calitastic Cappucino ('Wescacacap') (Calitastic Series)

New

25% off

Calibrachoa Calitastic Cappucino ('Wescacacap') (Calitastic Series)
£5.24 - £14.98
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
Calibrachoa Chameleon Tart Deco ('Wescachatade') (Chameleon Series)

New

25% off

Calibrachoa Chameleon Tart Deco ('Wescachatade') (Chameleon Series)
£5.24 - £10.48
9cm pot In stock (shipped within 2-3 working days)
2 + 1 FREE 9cm pots In stock (shipped within 2-3 working days)
Callistemon viminalis Hot Pink ('Kkho1') (PBR)

25% off

Callistemon viminalis Hot Pink ('Kkho1') (PBR)
£27.99 £20.99
2 litre pot 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)
Callitriche stagnalis
Callitriche stagnalis
£19.99
5 × plants Delivery by trusted supplier within 1 week
Calluna vulgaris Dark Beauty

25% off

Calluna vulgaris 'Dark Beauty'
£6.74 - £17.24
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Calluna vulgaris Theresa (Garden Girls Series)

25% off

Calluna vulgaris 'Theresa' (Garden Girls Series)
£6.74 - £15.74
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Calycanthus Venus

25% off

Calycanthus 'Venus'
£109.99 £82.49
12 litre pot | 50 - 80cm tall In stock (shipped within 2-3 working days)
Calycanthus × raulstonii Hartlage Wine

25% off

Campanula Rebelle

25% off

Campanula 'Rebelle'
£9.74 - £24.74
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Campanula Sarastro

25% off

Campanula 'Sarastro'
£6.74 - £14.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Campanula carpatica Blaue Clips

25% off

Campanula carpatica 'Blaue Clips'
£5.99 - £24.74
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)
Campanula carpatica f. alba Weisse Clips

25% off

Campanula carpatica f. alba 'Weisse Clips'
£5.99 - £24.74
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)
Campanula lactiflora Loddon Anna

25% off

Campanula lactiflora 'Loddon Anna'
£6.74 - £33.74
9cm pot In stock (shipped within 2-3 working days)
3 × 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
Campanula lactiflora Prichard's Variety

25% off

Campanula lactiflora 'Prichard's Variety'
£6.74 - £37.49
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
2 litre pot In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
Campanula poscharskyana

25% off

Campanula poscharskyana
£6.74 - £26.99
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)
Campanula trachelium

25% off

Campanula trachelium
£2.99 £2.24
approx 150 seeds In stock (shipped within 2-3 working days)
Campsis × tagliabueana Madame Galen

25% off

Campsis × tagliabueana 'Madame Galen'
£39.99 £29.99
3 litre pot | 60cm cane In stock (shipped within 2-3 working days)
Carex buchananii Red Rooster

New

25% off

Carex buchananii 'Red Rooster'
£7.49 - £18.74
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Caryopteris x clandonensis Kew Blue

25% off

Caryopteris x clandonensis 'Kew Blue'
£6.74 - £15.74
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Caryopteris × clandonensis Dark Knight

25% off

Caryopteris × clandonensis 'Dark Knight'
£19.99 £14.99
2 litre pot In stock (shipped within 2-3 working days)
Caryopteris × clandonensis Heavenly Blue

25% off

Caryopteris × clandonensis 'Heavenly Blue'
£6.74 - £28.49
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)
Caryopteris × clandonensis White Surprise (PBR)

25% off

Caryopteris × clandonensis 'White Surprise' (PBR)
£26.99 £20.24
2 litre pot In stock (shipped within 2-3 working days)
Caryopteris × clandonensis Grand Bleu ('Inoveris') (PBR)

25% off

Caryopteris × clandonensis Grand Bleu ('Inoveris') (PBR)
£20.99 £15.74
2 litre pot In stock (shipped within 2-3 working days)
Caryopteris × clandonensis Hint of Gold ('Lisaura') (PBR)

25% off

Caryopteris × clandonensis Pink Perfection ('Lisspin') (PBR)

25% off

Caryopteris × clandonensis Sterling Silver ('Lissilv') (PBR)

25% off

Caryopteris × clandonensis Sterling Silver ('Lissilv') (PBR)
£20.06 - £47.24
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

25% off

catnip / Nepeta cataria
£2.24 - £11.98
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
Ceanothus Autumnal Blue

25% off

Ceanothus 'Autumnal Blue'
£18.74 - £44.99
2 litre pot In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
Cenolophium denudatum

25% off

Cenolophium denudatum
£11.24 - £26.24
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
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)
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)

Copyright © Crocus.co.uk Ltd 2025. All rights reserved.