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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
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Showing Flowering month : September clear all
1808 items
A tale of summer blooms dahlia collection

New

A tale of summer blooms dahlia collection
From £15.16
available to order from winter
Abelia × grandiflora

20% off

Abelia × grandiflora
From £18.39
2 litre pot
3 × 2 litre pots
7.5 litre pot | 60 - 80cm tall
6 × 2 litre pots
0.75 star 1 star 1 star 1 star 1 star 4.8 5 12 (12)
Abelia × grandiflora Kaleidoscope (PBR)
Abelia × grandiflora 'Kaleidoscope' (PBR)
From £18.39
available to order from summer
0.5 star 1 star 1 star 1 star 1 star 4.5 5 4 (4)
Abelia × grandiflora Lucky Lots ('Wevo2') (PBR)

20% off

Abelia × grandiflora Lucky Lots ('Wevo2') (PBR)
£24.99 £19.99
2 litre pot
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Abelia × grandiflora Sunshine Daydream ('Abelops') (PBR)

20% off

Abelia × grandiflora Sunshine Daydream ('Abelops') (PBR)
£22.99 £18.39
2 litre pot
0 star 1 star 1 star 1 star 1 star 4.0 5 1 (1)
Abutilon Canary Bird
Abutilon 'Canary Bird'
£32.99 £26.39
available to order from summer
Abutilon megapotamicum

20% off

Abutilon megapotamicum
£32.99 £26.39
3 litre pot | 60cm cane
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Achillea Credo

20% off

Achillea 'Credo'
From £7.99
9cm pot
3 × 9cm pots
0.5 star 1 star 1 star 1 star 1 star 4.6 5 11 (11)
Achillea Moonshine

20% off

Achillea 'Moonshine'
From £7.99
2 litre pot
3 × 2 litre pots
0.5 star 1 star 1 star 1 star 1 star 4.6 5 23 (23)
Achillea Terracotta

20% off

Achillea 'Terracotta'
From £7.99
9cm pot
2 litre pot
3 × 9cm pots
3 × 2 litre pots
0.25 star 1 star 1 star 1 star 1 star 4.3 5 18 (18)
Achillea Walther Funcke

Best Seller

20% off

Achillea 'Walther Funcke'
From £7.99
9cm pot
3 × 9cm pots
0.5 star 1 star 1 star 1 star 1 star 4.6 5 12 (12)
Achillea filipendulina Cloth of Gold

20% off

Achillea filipendulina 'Cloth of Gold'
From £7.19
9cm pot
3 × 9cm pots
0.25 star 1 star 1 star 1 star 1 star 4.4 5 26 (26)
Achillea millefolium

Best Seller

20% off

Achillea millefolium
From £2.39
approx 400 seeds
9cm pot
3 × 9cm pots
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Achillea millefolium Red Velvet

20% off

Achillea millefolium 'Red Velvet'
From £7.99
9cm pot
2 litre pot
3 × 9cm pots
3 × 2 litre pots
0.5 star 1 star 1 star 1 star 1 star 4.4 5 14 (14)
Actaea Queen of Sheba (PBR)

20% off

Actaea 'Queen of Sheba' (PBR)
From £11.99
9cm pot
3 × 9cm pots
Actaea simplex Pink Spike

20% off

Actaea simplex 'Pink Spike'
From £11.99
9cm pot
3 × 9cm pots
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Actaea simplex Atropurpurea Group

20% off

Actaea simplex Atropurpurea Group
From £11.99
9cm pot
3 × 9cm pots
1 star 1 star 1 star 1 star 1 star 5.0 5 3 (3)
Agapanthus BlackJack ('Dwaghyb02') (PBR)

20% off

Agapanthus BlackJack ('Dwaghyb02') (PBR)
From £13.59
9cm pot
3 × 9cm pots
1 star 1 star 1 star 1 star 1 star 5.0 5 2 (2)
Agapanthus Dokter Brouwer
Agapanthus 'Dokter Brouwer'
From £4.79
available to order from winter
Agapanthus Emerald Ice (PBR)

New

20% off

Agapanthus 'Emerald Ice' (PBR)
From £11.99
9cm pot
3 × 9cm pots
Agapanthus Headbourne hybrids

20% off

Agapanthus 'Headbourne hybrids'
From £11.99
9cm pot
3 × 9cm pots
0 star 0.5 star 1 star 1 star 1 star (4)
Agapanthus Midnight Star

20% off

Agapanthus 'Midnight Star'
From £11.19
9cm pot
3 × 9cm pots
0.5 star 1 star 1 star 1 star 1 star (5)
Agapanthus Polar Ice
Agapanthus 'Polar Ice'
From £5.59
available to order from winter
Agapanthus Windsor Grey

20% off

Agapanthus 'Windsor Grey'
From £11.99
9cm pot
2 litre pot
3 × 9cm pots
3 × 2 litre pots
1 star 1 star 1 star 1 star 1 star (3)
Agapanthus africanus

20% off

Agapanthus africanus
From £12.79
9cm pot
2 litre pot
3 × 9cm pots
3 × 2 litre pots
0 star 1 star 1 star 1 star 1 star (13)
Agapanthus africanus Albus

20% off

Agapanthus africanus 'Albus'
From £12.79
9cm pot
2 litre pot
3 × 9cm pots
3 × 2 litre pots
0 star 1 star 1 star 1 star 1 star (2)
Agapanthus collection
Agapanthus collection
From £10.36
available to order from winter
Agapanthus Fireworks ('Mdb001') (PBR)

20% off

Agapanthus Fireworks ('Mdb001') (PBR)
From £12.79
9cm pot
2 litre pot
3 × 9cm pots
3 × 2 litre pots
1 star 1 star 1 star 1 star 1 star (2)
Agapanthus Midnight Moon ('DWHYB20') (PBR)

20% off

Agapanthus Midnight Moon ('DWHYB20') (PBR)
From £12.79
9cm pot
3 × 9cm pots
Agapanthus Poppin' Purple ('MP003') (PBR) (Everpanthus Series)

20% off

Agapanthus Poppin' Purple ('MP003') (PBR) (Everpanthus Series)
From £13.59
9cm pot
3 × 9cm pots
Agapanthus praecox subsp. orientalis Zambezi ('Kek5006')

20% off

Agapanthus praecox subsp. orientalis Zambezi ('Kek5006')
From £19.99
2 litre pot
3 × 2 litre pots
Agapanthus Queen Mum ('Pmn06') (PBR)

20% off

Agapanthus Queen Mum ('Pmn06') (PBR)
From £12.60
9cm pot
3 × 9cm pots
0 star 0 star 0 star 1 star 1 star (1)
Agapanthus Twister ('Ambic001') (PBR)

20% off

Agapanthus Twister ('Ambic001') (PBR)
From £12.79
9cm pot
2 litre pot
3 × 9cm pots
3 × 2 litre pots
0 star 1 star 1 star 1 star 1 star (8)
Agastache and Angelica plant combination

20% off

Agastache & Angelica plant combination
£65.94 £52.75
6 × plants | 3 of each
Agastache and Helenium plant combination

20% off

Agastache & Helenium plant combination
£59.94 £47.95
6 × plants | 3 of each
Agastache Blackadder

20% off

Agastache 'Blackadder'
From £7.19
9cm pot
3 × 9cm pots
2 litre pot
3 × 2 litre pots
0.5 star 1 star 1 star 1 star 1 star (39)
Agastache Blue Boa (PBR)

20% off

Agastache 'Blue Boa' (PBR)
From £7.19
9cm pot
3 × 9cm pots
0.75 star 1 star 1 star 1 star 1 star (22)
Agastache Blue Fortune

20% off

Agastache 'Blue Fortune'
From £7.19
9cm pot
2 litre pot
3 × 9cm pots
3 × 2 litre pots
0.75 star 1 star 1 star 1 star 1 star (44)
Agastache foeniculum Alabaster

20% off

Agastache foeniculum 'Alabaster'
From £7.19
9cm pot
3 × 9cm pots
0.75 star 1 star 1 star 1 star 1 star (13)
Agastache rugosa Little Adder

20% off

Agastache rugosa 'Little Adder'
From £7.99
9cm pot
3 × 9cm pots
Agastache rugosa Beelicious Pink ('Agapk') (PBR)

20% off

Agastache rugosa Beelicious Pink ('Agapk') (PBR)
From £7.99
9cm pot
3 × 9cm pots
1 star 1 star 1 star 1 star 1 star (1)
Agastache rugosa Beelicious Purple ('Agapd') (PBR)

20% off

Agastache rugosa Beelicious Purple ('Agapd') (PBR)
From £7.99
9cm pot
2 litre pot
3 × 9cm pots
3 × 2 litre pots
Ageratina altissima Chocolate

20% off

Ageratina altissima 'Chocolate'
From £7.19
9cm pot
3 × 9cm pots
0.5 star 1 star 1 star 1 star 1 star (5)
Agrostemma githago

20% off

Agrostemma githago
£3.29 £2.63
approx 75 seeds
Alchemilla mollis

Best Seller

20% off

Alchemilla mollis
From £2.39
9cm pot
2 litre pot
3 × 9cm pots
3 × 2 litre pots
0.5 star 1 star 1 star 1 star 1 star (29)
Alisma subcordatum
Alisma subcordatum
From £32.99
3 × 9cm pots
3 × 1 litre aquatic pots
Alocasia Tiny Dancers
Alocasia 'Tiny Dancers'
£16.99 £13.59
available to order from winter
Alstroemeria Inticancha Sunburst

New

20% off

Alstroemeria 'Inticancha Sunburst'
£24.99 £19.99
2 litre pot
Alstroemeria Beach Valley (Summer Paradise - Valley Series)
Alstroemeria Beach Valley (Summer Paradise - Valley Series)
From £19.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (5)
Alstroemeria Inticancha Magic White ('Tesmaghwi') (Inticancha Series)

New

20% off

Alstroemeria Inticancha Magic White ('Tesmaghwi') (Inticancha Series)
£24.99 £19.99
2 litre pot
0 star 1 star 1 star 1 star 1 star (3)
Alstroemeria Inticancha Paraíso ('Tesparai') (PBR) (Inticancha Series)
Alstroemeria Inticancha Paraiso ('Tesparai') (PBR) (Inticancha Series)
From £19.99
available to order from summer
1 star 1 star 1 star 1 star 1 star (2)
Alstroemeria Inticancha Sunset ('Tessunse') (Inticancha Sun Series)

New

20% off

Alstroemeria Inticancha Sunset ('Tessunse') (Inticancha Sun Series)
£24.99 £19.99
2 litre pot
Alstroemeria River Valley ('Tessumriver') (Summer Paradise - Valley Series)

New

Alstroemeria River Valley ('Tessumriver') (Summer Paradise Valley Series)
£24.99 £19.99
available to order from summer
Alstroemeria Summer Break ('Tessumbreak') (PBR) (Summer Paradise - Summer Series)

New

20% off

Alstroemeria Summer Break ('Tessumbreak') (PBR) (Summer Paradise Series)
£24.99 £19.99
2 litre pot
1 star 1 star 1 star 1 star 1 star (1)
Alstroemeria Summer Breeze ('Teshunte') (PBR) (Summer Paradise Series)

New

20% off

Alstroemeria Summer Breeze ('Teshunte') (PBR) (Summer Paradise Series)
£24.99 £19.99
2 litre pot
1 star 1 star 1 star 1 star 1 star (1)
Alstroemeria Summer Ice (Summer Paradise - Series)

New

20% off

Alstroemeria Summer Ice (Summer Paradise - Series)
£24.99 £19.99
2 litre pot
Alstroemeria Times Valley ('Tessvaltime') (Summer Paradise - Valley Series)

New

20% off

Alstroemeria Times Valley ('Tessvaltime') (Summer Paradise - Series)
£24.99 £19.99
2 litre pot
Alstroemeria Valley Girl ('Tesvalgirl') (Summer Paradise - Valley Series)

20% off

Alstroemeria Valley Girl ('Tesvalgirl') (Summer Paradise - Valley Series)
From £19.99
2 litre pot
3 × 2 litre pots
1 star 1 star 1 star 1 star 1 star (1)
Alstroemeria Valley Wild ('Tesvalwild') (Summer Paradise - Valley Series)
Alstroemeria Valley Wild ('Tesvalwild') (Summer Paradise - Valley Series)
From £18.39
available to order from summer
Althaea officinalis

20% off

Althaea officinalis
From £7.99
9cm pot
3 × 9cm pots
1 star 1 star 1 star 1 star 1 star (1)
Amaranthus caudatus

20% off

Amaranthus caudatus
£2.79 £2.23
approx 2200 seeds
1 star 1 star 1 star 1 star 1 star (2)
Amaryllis belladonna
Amaryllis belladonna
From £5.59
available to order from summer
1 star 1 star 1 star 1 star 1 star (1)
Amethyst spires mini-border collection

20% off

Amethyst spires mini-border collection
£57.99 £46.39
6 × 9cm plants
Ammi majus

Best Seller

Up to 50% off

Ammi majus
From £2.31
approx 500 seeds
3 × packets of seeds
0.5 star 1 star 1 star 1 star 1 star (5)
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