Free standard delivery when you spend £75 or more on full-priced plants | T&Cs apply

Our bulb shop is now open | Preorder now

Shop

Information & Help

My account

crocus
Wish-list My wheelbarrow

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
Curated Collections
Flower colour
Evergreen / deciduous
Fragrance
Attractive to wildlife
Quick growing
Eventual size
Special features
Indoor plants by room
Bulb planting time
Bulb divisions
Sowing month inside or protected
Sowing month outside
Vegetable harvesting month
Vegetable groups
Multibuy packs
Ready made borders
Planting combinations
Hardy
Leaf colour
Ground cover
Position
Shape
Soil moisture
Used at Chelsea
Kitchen garden planting guidelines
Sort by name
All items
Showing Flowering month : September clear all
461 items
Abutilon Canary Bird
Abutilon 'Canary Bird'
£32.99
3 litre pot | 60cm cane available to order from autumn
Abutilon megapotamicum
Abutilon megapotamicum
£29.99
3 litre pot | 60cm cane available to order from autumn
Achillea Credo
Achillea 'Credo'
£9.99 - £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)
0.5 star 1 star 1 star 1 star 1 star 4.6 5 11
Achillea Walther Funcke
Achillea 'Walther Funcke'
£9.99 - £49.99
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
0.75 star 1 star 1 star 1 star 1 star 4.7 5 10
Achillea millefolium

25% off

Achillea millefolium
£2.24 - £19.99
approx 400 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)
Actaea Queen of Sheba (PBR)
Actaea 'Queen of Sheba' (PBR)
£14.99 - £33.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Actaea simplex Pink Spike
Actaea simplex 'Pink Spike'
£14.99 - £54.99
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)
Agapanthus Headbourne hybrids
Agapanthus 'Headbourne hybrids'
£14.99 - £32.99
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
0 star 0.5 star 1 star 1 star 1 star 3.5 5 4
Agapanthus Poppin' Purple ('MP003') (PBR) (Everpanthus Series)

50% off

Agapanthus Poppin' Purple ('MP003') (PBR) (Everpanthus Series)
£8.50 - £20.00
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Agastache and Helenium plant combination
Agastache & Helenium plant combination
£59.94
6 × plants | 3 of each In stock (shipped within 2-3 working days)
Ageratina altissima Chocolate
Ageratina altissima 'Chocolate'
£8.99 - £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)
1 star 1 star 1 star 1 star 1 star 5.0 5 4
Alchemilla mollis

25% off

Alchemilla mollis
£2.09 - £39.99
approx 75 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)
2 litre pot available to order from autumn
3 × 2 litre pots available to order from autumn
1 star 1 star 1 star 1 star 1 star 4.9 5 20
Althaea officinalis
Althaea officinalis
£9.99 - £22.99
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
Amaranthus caudatus

25% off

Amaranthus caudatus
£2.79 £2.09
approx 2200 seeds In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Amaranthus caudatus Cascade Green

25% off

Amaranthus caudatus 'Cascade Green'
£2.99 £2.24
approx 2200 seeds In stock (shipped within 2-3 working days)
Ammi majus

25% off

Ammi majus
£2.09 - £36.99
approx 500 seeds In stock (shipped within 2-3 working days)
3 × packets of seeds In stock (shipped within 2-3 working days)
40 + 20 FREE seedlings sold out
0.5 star 1 star 1 star 1 star 1 star 4.5 5 4
Angelica gigas
Angelica gigas
£12.99 - £44.99
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)
0.5 star 1 star 1 star 1 star 1 star 4.6 5 32
Angelica sylvestris Vicar's Mead

New

Angelica sylvestris 'Vicar's Mead'
£13.99 - £32.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Antirrhinum majus Appleblossom

25% off

Antirrhinum majus 'Appleblossom'
£1.87 - £5.25
approx 20 seeds In stock (shipped within 2-3 working days)
3 × packets of seeds In stock (shipped within 2-3 working days)
Antirrhinum majus Madame Butterfly Bronze White

25% off

Antirrhinum majus 'Madame Butterfly Bronze White'
£3.49 £2.62
approx 25 seeds In stock (shipped within 2-3 working days)
Arbutus unedo
Arbutus unedo
£34.99
2 litre pot | 30cm tall In stock (shipped within 3-5 working days)
0.75 star 1 star 1 star 1 star 1 star
Aster Duchess Mixed

25% off

Aster 'Duchess Mixed'
£2.49 £1.87
approx 200 seeds In stock (shipped within 2-3 working days)
Aster amellus King George
Aster amellus 'King George'
£9.99 - £39.99
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
6 × 9cm pots available to order from autumn
1 star 1 star 1 star 1 star 1 star
Astrantia Roma (PBR)
Astrantia 'Roma' (PBR)
£12.99 - £49.99
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
Award-winning crocosmia collection
Award-winning crocosmia collection
£17.06 - £34.11
1 × collection | 30 bulbs available to order from winter
2 + 1 FREE collections | 90 bulbs available to order from winter
Award-winning honeysuckle collection
Award-winning honeysuckle collection
£44.97
1 × collection | 3 plants available to order from autumn
Award-winning late-summer flowering clematis collection
Award-winning late-summer flowering clematis collection
£44.97
1 × collection | 3 plants available to order from autumn
Award-winning spring, summer & autumn clematis collection
Award-winning spring, summer & autumn clematis collection
£47.97
1 × collection | 3 plants available to order from autumn
Award-winning summer flowering clematis collection
Award-winning summer flowering clematis collection
£44.97
1 × collection | 3 plants available to order from autumn
Begonia (Pendula Group) Pink Giant
Begonia (Pendula Group) 'Pink Giant'
£3.59 - £8.99
1 × tuber available to order from winter
3 × tubers available to order from winter
1 star 1 star 1 star 1 star 1 star
Begonia collection for Hanging baskets & pots
Begonia collection for hanging baskets and pots
£10.75 - £21.55
1 × collection | 3 tubers available to order from winter
2 + 1 FREE collections | 9 tubers available to order from winter
Best red dahlia collection
Best red dahlia collection
£15.26 - £30.51
1 × collection | 3 tubers available to order from winter
2 + 1 FREE collections | 9 tubers available to order from winter
Betonica officinalis Hummelo
Betonica officinalis 'Hummelo'
£8.99 - £34.99
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
Billardiera heterophylla
Billardiera heterophylla
£29.99
3 litre pot | 60cm cane available to order from autumn
0.5 star 1 star 1 star 1 star 1 star
Billardiera heterophylla Ultra Blue (PBR)
Billardiera heterophylla 'Ultra Blue' (PBR)
£26.95
3 litre pot | 60cm cane available to order from autumn
Bistorta amplexicaulis Blackfield (PBR)
Bistorta amplexicaulis 'Blackfield' (PBR)
£14.99 - £47.99
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
Bistorta amplexicaulis Firetail
Bistorta amplexicaulis 'Firetail'
£9.99 - £24.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Bistorta officinalis Superba
Bistorta officinalis 'Superba'
£10.99 - £45.99
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)
0.5 star 1 star 1 star 1 star 1 star
Borago officinalis

25% off

borage | Borago officinalis
£1.64 - £15.98
approx 75 organic 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
0.5 star 1 star 1 star 1 star 1 star
broccoli raab Cima di Rapa 60
broccoli raab 'Cima di Rapa 60'
£2.99 £2.24
approx 4800 seeds available to order from autumn
Buddleja Lochinch
Buddleja 'Lochinch'
£19.99
2 litre pot available to order from autumn
1 star 1 star 1 star 1 star 1 star
Buddleja Pink Delight
Buddleja 'Pink Delight'
£19.99 - £69.99
2 litre pot available to order from autumn
10 litre pot | 80 - 100cm tall available to order from autumn
1 star 1 star 1 star 1 star 1 star
Buddleja davidii Black Knight
Buddleja davidii 'Black Knight'
£19.99 - £69.99
2 litre pot available to order from autumn
10 litre pot | 80 - 100cm tall available to order from autumn
0.75 star 1 star 1 star 1 star 1 star
Buddleja davidii White Profusion
Buddleja davidii 'White Profusion'
£19.99 - £69.99
2 litre pot available to order from autumn
10 litre pot | 80 - 100cm tall available to order from autumn
1 star 1 star 1 star 1 star 1 star
Buddleja Sugar Plum ('Lonplum') (PBR)
Buddleja Sugar Plum ('Lonplum') (PBR)
£24.99
2 litre pot available to order from autumn
0.75 star 1 star 1 star 1 star 1 star
Calamintha nepeta subsp. nepeta Blue Cloud

New

Calamintha nepeta subsp. nepeta 'Blue Cloud'
£9.99 - £24.99
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
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 Cabaret Early Orange (Cabaret Series)
Calibrachoa 'Cabaret Early Orange' (Cabaret Series)
£6.99 - £19.98
9cm pot available to order from autumn
5 × rooted cuttings sold out
2 + 1 FREE 9cm pots available to order from autumn
10 + 5 FREE rooted cuttings sold out
1 star 1 star 1 star 1 star 1 star
Calibrachoa Can-can Double OrangeTastic (Can-can Series)
Calibrachoa 'Can-can Double OrangeTastic' (Can-can Series)
£3.50 - £25.98
9cm pot available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
5 × rooted cuttings sold out
10 + 5 FREE rooted cuttings sold out
Callistemon viminalis Hot Pink ('Kkho1') (PBR)
Callistemon viminalis Hot Pink ('Kkho1') (PBR)
£27.99
2 litre pot shipped within 2 weeks
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)
Calycanthus Venus
Calycanthus 'Venus'
£109.99
12 litre pot | 50 - 80cm tall available to order from autumn
0.5 star 1 star 1 star 1 star 1 star
Campsis × tagliabueana Madame Galen
Campsis × tagliabueana 'Madame Galen'
£39.99
3 litre pot | 60cm cane In stock (shipped within 2-3 working days)
Campsis × tagliabueana Indian Summer ('Kudian') (PBR)
Campsis × tagliabueana Indian Summer ('Kudian') (PBR)
£39.95
3 litre pot | 60cm cane available to order from autumn
Caryopteris × clandonensis Heavenly Blue
Caryopteris × clandonensis 'Heavenly Blue'
£8.99 - £37.99
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 Sterling Silver ('Lissilv') (PBR)
Caryopteris × clandonensis Sterling Silver ('Lissilv') (PBR)
£26.75 - £62.99
2 litre pot sold out
3 × 2 litre pots sold out
Nepeta cataria

25% off

catnip / Nepeta cataria
£2.24 - £15.98
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
1 star 1 star 1 star 1 star 1 star
Cenolophium denudatum
Cenolophium denudatum
£14.99 - £59.99
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 nigra

25% off

Centaurea nigra
£2.24 - £18.99
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)
1 star 1 star 1 star 1 star 1 star
Centranthus ruber
Centranthus ruber
£8.99 - £42.99
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)
6 × 9cm pots In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
0.25 star 1 star 1 star 1 star 1 star
Centranthus ruber Albus
Centranthus ruber 'Albus'
£8.99 - £32.99
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
Ceratostigma plumbaginoides
Ceratostigma plumbaginoides
£8.99 - £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
Ceratostigma willmottianum Forest Blue ('Lice') (PBR)
Ceratostigma willmottianum Forest Blue ('Lice') (PBR)
£22.99
2 litre pot In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star
Chelsea showstoppers mini-border collection

New

Chelsea showstoppers mini-border collection
£69.99 - £142.98
6 × 9cm plants Unavailable
with zinc dolly pot - large Ø46 × H40cm In stock (shipped within 2-3 working days)
chilli Basket of Fire F1

25% off

chilli 'Basket of Fire' F1
£3.99 £2.99
approx 10 seeds In stock (shipped within 2-3 working days)
chilli Carolina Reaper

25% off

chilli 'Carolina' Reaper
£3.99 £2.99
approx 5 seeds In stock (shipped within 2-3 working days)
chilli Trinidad Moruga Scorpion
chilli 'Trinidad Scorpion'
£3.99 £2.99
approx 5 seeds available to order from autumn
Choisya Greenfingers ('Lissfing') (PBR)
Choisya × dewitteana Greenfingers ('Lissfing') (PBR)
£24.99
2 litre pot In stock (shipped within 2-3 working days)
Chrysanthemum Clara Curtis
Chrysanthemum 'Clara Curtis'
£9.99 - £22.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Chrysanthemum Dr Tom Parr

New

Chrysanthemum 'Dr Tom Parr'
£9.99 - £23.99
9cm pot sold out
3 × 9cm pots sold out
Chrysanthemum Duchess of Edinburgh

New

Chrysanthemum 'Duchess of Edinburgh'
£9.99 - £23.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Chrysanthemum Mei-Kyo

New

Chrysanthemum 'Mei-Kyo'
£9.99 - £23.99
9cm pot sold out
3 × 9cm pots sold out
Cirsium rivulare Trevors Felley Find (PBR)
Cirsium rivulare 'Trevors Felley Find' (PBR)
£10.99 - £44.99
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)
0.75 star 1 star 1 star 1 star 1 star
Classic cottage alba amethyst combination
Classic cottage alba amethyst combination
£39.96 - £119.88
4 plants | 1 of each In stock (shipped within 2-3 working days)
12 plants | 3 of each In stock (shipped within 2-3 working days)
Classic cottage alba combination
Classic cottage alba combination
£40.96 - £122.88
4 plants | 1 of each In stock (shipped within 2-3 working days)
12 plants | 3 of each In stock (shipped within 2-3 working days)
Classic cottage apricot combination
Classic cottage apricot combination
£39.96 - £119.88
4 plants | 1 of each In stock (shipped within 2-3 working days)
12 plants | 3 of each In stock (shipped within 2-3 working days)
Classic cottage dusky Rozanne combination
Classic cottage dusky Rozanne combination
£45.96 - £137.88
4 plants | 1 of each In stock (shipped within 2-3 working days)
12 plants | 3 of each In stock (shipped within 2-3 working days)
Clematis Alionushka
Clematis 'Alionushka'
£24.95
3 litre pot | 60cm cane available to order from autumn
1 star 1 star 1 star 1 star 1 star
Clematis Blue Eclipse
Clematis 'Blue Eclipse'
£24.95
2 litre pot | 60cm cane available to order from autumn
Clematis Elsa Späth
Clematis 'Elsa Späth'
£14.99 - £29.98
9cm pot | 30cm cane available to order from autumn
3 litre pot | 60cm cane available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
Clematis Fujimusume
Clematis 'Fujimusume'
£22.95
3 litre pot | 60cm cane available to order from autumn
Clematis Hagley Hybrid
Clematis 'Hagley Hybrid'
£14.99 - £29.98
9cm pot | 30cm cane available to order from autumn
3 litre pot | 60cm cane available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
Clematis Kaiu
Clematis 'Kaiu'
£24.95
3 litre pot | 60cm cane available to order from winter
Clematis Lambton Park
Clematis 'Lambton Park'
£24.95
3 litre pot | 60cm cane available to order from autumn
Clematis Little Nell
Clematis 'Little Nell'
£22.95
3 litre pot | 60cm cane available to order from autumn
Clematis Mrs Cholmondeley
Clematis 'Mrs Cholmondeley'
£14.99 - £29.98
9cm pot | 30cm cane available to order from autumn
3 litre pot | 60cm cane available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
Clematis Multi Blue
Clematis 'Multi Blue'
£14.99 - £29.98
9cm pot | 30cm cane available to order from autumn
3 litre pot | 60cm cane available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
Clematis Paul Farges
Clematis 'Paul Farges'
£27.99
3 litre pot | 60cm cane available to order from autumn
Clematis Princess Diana
Clematis 'Princess Diana'
£14.99 - £29.98
9cm pot | 30cm cane available to order from autumn
2 litre pot | 60cm cane available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
0.75 star 1 star 1 star 1 star 1 star
Clematis Rubra
Clematis 'Rubra'
£29.99
3 litre pot | 60cm cane available to order from autumn
Clematis Sunset
Clematis 'Sunset'
£28.99
3 litre pot | 60cm cane In stock (shipped within 2-3 working days)
Clematis Westerplatte
Clematis 'Westerplatte'
£22.95
3 litre pot | 60cm cane shipped within 2 weeks
Clematis Alaina ('Evipo056') (PBR) (Boulevard Series)
Clematis Alaina ('Evipo056') (PBR) (Boulevard Series)
£32.95
3 litre pot | 60cm cane available to order from autumn
Clematis Amethyst Beauty ('Evipo043') (PBR)
Clematis Amethyst Beauty ('Evipo043') (PBR)
£32.95
3 litre pot | 60cm cane shipped within 2 weeks
Clematis Bijou ('Evipo030') (PBR) (Tudor Patio Series)
Clematis Bijou ('Evipo030') (PBR) (Tudor Patio Series)
£26.95
3 litre pot available to order from autumn
Clematis Daiyu ('Evipo083') (PBR)
Clematis Daiyu ('Evipo083') (PBR)
£26.95
3 litre pot | 60cm cane available to order from autumn
Clematis East River ('Zoeastri') (PBR)
Clematis East River ('Zoeastri') (PBR)
£26.95
2 litre pot | 60cm cane available to order from autumn
Clematis Filigree ('Evipo029') (PBR) (Tudor Patio Series)
Clematis Filigree ('Evipo029') (PBR) (Tudor Patio Series)
£32.95
3 litre pot | 60cm cane available to order from autumn
Clematis florida var. normalis Pistachio ('Evirida') (PBR)
Clematis florida var. normalis Pistachio ('Evirida') (PBR)
£32.95
3 litre pot | 60cm cane available to order from autumn
< Prev 1 2 3 ... 5 Next >

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