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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
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Evergreen / deciduous
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Attractive to wildlife
Quick growing
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Indoor plants by room
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Bulb divisions
Bedding planting time
Chelsea plant of year
Sowing month inside or protected
Sowing month outside
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Ready made borders
Planting combinations
Hardy
Leaf colour
Ground cover
Position
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Used at Chelsea
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All items
Showing Flowering month : September clear all
1671 items
Abelia × grandiflora

20% off

Abelia × grandiflora
£18.39 - £75.99
2 litre pot In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
7.5 litre pot | 60 - 80cm tall In stock (shipped within 2-3 working days)
6 × 2 litre pots In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star 4.7 5 10
Abelia × grandiflora Kaleidoscope (PBR)

20% off

Abelia × grandiflora 'Kaleidoscope' (PBR)
£18.39 - £71.99
2 litre pot In stock (shipped within 2-3 working days)
3 × 2 litre pots In stock (shipped within 2-3 working days)
7.5 litre pot | 60 - 80cm tall In stock (shipped within 2-3 working days)
0.75 star 1 star 1 star 1 star 1 star 4.7 5 3
Abelia × grandiflora Lucky Lots ('Wevo2') (PBR)

20% off

Abelia × grandiflora Lucky Lots ('Wevo2') (PBR)
£24.99 £19.99
2 litre pot In stock (shipped within 2-3 working days)
Abelia × grandiflora Tricolor Charm ('Mincautri') (PBR)
Abelia × grandiflora Tricolor Charm ('Mincautri') (PBR)
£17.32 - £40.59
2 litre pot sold out
3 × 2 litre pots sold out
Abutilon Canary Bird
Abutilon 'Canary Bird'
£32.99 £26.39
3 litre pot | 60cm cane available to order from autumn
Abutilon megapotamicum
Abutilon megapotamicum
£29.99 £23.99
3 litre pot | 60cm cane available to order from autumn
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Achillea Credo

20% off

Achillea 'Credo'
£7.99 - £31.99
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 Moonshine

20% off

Achillea 'Moonshine'
£7.19 - £35.99
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)
0.75 star 1 star 1 star 1 star 1 star 4.7 5 22
Achillea Terracotta

20% off

Achillea 'Terracotta'
£7.99 - £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)
2 litre pot available to order from autumn
3 × 2 litre pots available to order from autumn
0.25 star 1 star 1 star 1 star 1 star 4.4 5 17
Achillea Walther Funcke

20% off

Achillea 'Walther Funcke'
£7.99 - £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)
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 filipendulina Cloth of Gold

20% off

Achillea filipendulina 'Cloth of Gold'
£7.19 - £31.99
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)
0.25 star 1 star 1 star 1 star 1 star 4.3 5 23
Achillea millefolium

Up to 25%

Achillea millefolium
£2.24 - £27.99
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)
6 × 9cm pots In stock (shipped within 2-3 working days)
Achillea millefolium Red Velvet

20% off

Achillea millefolium 'Red Velvet'
£7.99 - £39.99
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 4.4 5 14
Actaea Queen of Sheba (PBR)

20% off

Actaea 'Queen of Sheba' (PBR)
£11.99 - £27.19
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

20% off

Actaea simplex 'Pink Spike'
£11.99 - £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 BlackJack ('Dwaghyb02') (PBR)

20% off

Agapanthus BlackJack ('Dwaghyb02') (PBR)
£13.59 - £79.99
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
Agapanthus Dokter Brouwer
Agapanthus 'Dokter Brouwer'
£3.99 - £9.60
1 × bare root plant available to order from winter
3 × bare root plants available to order from winter
Agapanthus Emerald Ice (PBR)

New

Agapanthus 'Emerald Ice' (PBR)
£11.99 - £31.99
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
Agapanthus Headbourne hybrids
Agapanthus 'Headbourne hybrids'
£11.99 - £26.39
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 Midnight Star

20% off

Agapanthus 'Midnight Star'
£11.19 - £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)
0.5 star 1 star 1 star 1 star 1 star 4.4 5 5
Agapanthus Polar Ice
Agapanthus 'Polar Ice'
£4.79 - £9.58
1 × bare root plant available to order from winter
2 + 1 FREE bare root plants available to order from winter
Agapanthus Windsor Grey

20% off

Agapanthus 'Windsor Grey'
£10.39 - £59.99
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)
1 star 1 star 1 star 1 star 1 star
Agapanthus africanus

20% off

Agapanthus africanus
£11.19 - £57.99
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)
0.25 star 1 star 1 star 1 star 1 star
Agapanthus africanus Albus

20% off

Agapanthus africanus 'Albus'
£11.19 - £55.99
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 star 0 star 1 star 1 star 1 star
Agapanthus collection
Agapanthus collection
£8.76 - £17.52
1 × collection | 2 bare root plants available to order from winter
2 + 1 FREE collections | 6 bare roots available to order from winter
Agapanthus Fireworks ('Mdb001') (PBR)

20% off

Agapanthus Fireworks ('Mdb001') (PBR)
£11.99 - £59.99
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)
1 star 1 star 1 star 1 star 1 star
Agapanthus Midnight Moon ('DWHYB20') (PBR)

New

20% off

Agapanthus Midnight Moon ('DWHYB20') (PBR)
£12.79 - £30.39
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Agapanthus Poppin' Purple ('MP003') (PBR) (Everpanthus Series)
Agapanthus Poppin' Purple ('MP003') (PBR) (Everpanthus Series)
£13.59 - £31.99
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
Agapanthus praecox subsp. orientalis Zambezi ('Kek5006')

New

20% off

Agapanthus praecox subsp. orientalis Zambezi ('Kek5006')
£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)
Agapanthus Queen Mum ('Pmn06') (PBR)
Agapanthus Queen Mum ('Pmn06') (PBR)
£12.60 - £19.80
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
0 star 0 star 0 star 1 star 1 star
Agapanthus Twister ('Ambic001') (PBR)

20% off

Agapanthus Twister ('Ambic001') (PBR)
£12.79 - £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)
2 litre pot available to order from autumn
3 × 2 litre pots available to order from autumn
0.25 star 1 star 1 star 1 star 1 star
Agastache and Angelica plant combination

20% off

Agastache & Angelica plant combination
£65.94 £52.75
6 × plants | 3 of each In stock (shipped within 2-3 working days)
Agastache and Helenium plant combination

20% off

Agastache & Helenium plant combination
£59.94 £47.95
6 × plants | 3 of each In stock (shipped within 2-3 working days)
Agastache Blackadder

20% off

Agastache 'Blackadder'
£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)
2 litre pot 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)
0.5 star 1 star 1 star 1 star 1 star
Agastache Blue Boa (PBR)

20% off

Agastache 'Blue Boa' (PBR)
£7.19 - £42.39
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)
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
Agastache Blue Fortune

20% off

Agastache 'Blue Fortune'
£7.19 - £35.99
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)
0.75 star 1 star 1 star 1 star 1 star
Agastache foeniculum Alabaster

20% off

Agastache foeniculum 'Alabaster'
£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)
0.75 star 1 star 1 star 1 star 1 star
Agastache rugosa Little Adder

20% off

Agastache rugosa 'Little Adder'
£7.99 - £30.39
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)
Agastache rugosa Beelicious Pink ('Agapk') (PBR)
Agastache rugosa Beelicious Pink ('Agapk') (PBR)
£7.99 - £34.39
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
6 × 9cm pots available to order from autumn
Agastache rugosa Beelicious Purple ('Agapd') (PBR)

20% off

Agastache rugosa Beelicious Purple ('Agapd') (PBR)
£7.99 - £42.99
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
Ageratina altissima Chocolate

20% off

Ageratina altissima 'Chocolate'
£7.19 - £31.99
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
Agrostemma githago

25% off

Agrostemma githago
£3.29 £2.47
approx 75 seeds In stock (shipped within 2-3 working days)
Alchemilla mollis

Up to 25%

Alchemilla mollis
£2.09 - £31.99
approx 75 seeds In stock (shipped within 2-3 working days)
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)
1 star 1 star 1 star 1 star 1 star
Alisma subcordatum
Alisma subcordatum
£22.39 - £31.99
3 × 9cm pots available to order from summer
3 × 1 litre aquatic pots available to order from summer
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