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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 Chelsea
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All items
Showing Flowering month : September clear all
1663 items
Iberis sempervirens Appen-Etz
Iberis sempervirens 'Appen-Etz'
£8.99 - £19.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Icing sugar sweet pea seed collection
Icing sugar sweet pea seed collection
£9.07 £6.75
1 × collection available to order from autumn
Impatiens Beacon Select Mixture (Beacon Series)
Impatiens 'Beacon Select Mixture'
£36.99
40 + 20 FREE seedlings sold out
1 star 1 star 1 star 1 star 1 star 5.0 5 3
Ipomoea lobata

25% off

Ipomoea lobata
£2.25 £1.69
approx 20 seeds In stock (shipped within 2-3 working days)
Itea ilicifolia
Itea ilicifolia
£49.99
3 litre pot available to order from autumn
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Itea virginica Henry's Garnet

40% off

Itea virginica 'Henry's Garnet'
£14.99 - £59.99
2 litre pot In stock (shipped within 2-3 working days)
7.5 litre pot In stock (shipped within 2-3 working days)
Kalimeris incisa Blue Star
Kalimeris incisa 'Blue Star'
£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)
Kirengeshoma palmata

20% off

Kirengeshoma palmata
£7.99 - £43.99
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
0 star 1 star 1 star 1 star 1 star 4.0 5 1
Knautia arvensis

25% off

Crocus collection
Knautia arvensis
£2.99 £2.24
approx 25 seeds In stock (shipped within 2-3 working days)
0 star 0 star 0 star 1 star 1 star 2.0 5 2
Knautia macedonica

Up to 25%

Knautia macedonica
£2.99 - £39.99
approx 40 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)
0.5 star 1 star 1 star 1 star 1 star 4.6 5 41
Kniphofia Bees Lemon
Kniphofia 'Bees Lemon'
£12.99 - £49.99
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)
0.25 star 1 star 1 star 1 star 1 star 4.3 5 8
Kniphofia Pineapple Popsicle (Popsicle Series)

20% off

Kniphofia 'Pineapple Popsicle' (Popsicle Series)
£10.39 - £22.39
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Kniphofia Poco Sunset (Poco Series)

20% off

Kniphofia 'Poco Sunset' (Poco Series)
£11.99 - £27.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Kniphofia Redhot Popsicle (Popsicle series)

20% off

Kniphofia 'Redhot Popsicle' (Popsicle series)
£11.99 - £27.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Kniphofia Tawny King
Kniphofia 'Tawny King'
£12.99 - £29.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
0.25 star 1 star 1 star 1 star 1 star 4.3 5 7
Kniphofia Ember Glow ('Tneg') (PBR) (Glow Series)

20% off

Kniphofia Ember Glow ('Tneg') (PBR) (Glow Series)
£11.99 - £26.39
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 5.0 5 2
Kniphofia uvaria

20% off

Kniphofia uvaria
£7.99 - £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)
1 star 1 star 1 star 1 star 1 star 5.0 5 4
Large Coffee and cream dahlia collection
Large Coffee & cream dahlia collection
£27.45 - £54.90
1 × collection | 5 tubers available to order from winter
2 + 1 FREE collections | 15 tubers available to order from winter
Lathyrus × hammettii Primrose
Lathyrus × hammettii 'Primrose'
£2.99 £2.24
approx 20 seeds available to order from autumn
Lathyrus latifolius Red Pearl
Lathyrus latifolius 'Red Pearl'
£14.99 - £29.98
9cm pot available to order from winter
3 litre pot | 60cm cane available to order from winter
2 + 1 FREE 9cm pots available to order from winter
Lathyrus latifolius Rosa Perle
Lathyrus latifolius 'Rosa Perle'
£14.99 - £29.99
9cm pot available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
3 litre pot | 60cm cane available to order from autumn
0 star 1 star 1 star 1 star 1 star
Lathyrus latifolius White Pearl
Lathyrus latifolius 'White Pearl'
£14.99 - £29.99
9cm pot available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
3 litre pot | 60cm cane available to order from autumn
0 star 0 star 1 star 1 star 1 star
Lathyrus latifolius collection
Lathyrus latifolius collection
£29.99 - £59.98
1 × collection available to order from autumn
2 + 1 FREE collections available to order from autumn
Lathyrus odoratus Almost Black
Lathyrus odoratus 'Almost Black'
£2.99 £2.24
approx 20 seeds available to order from autumn
Lathyrus odoratus Beaujolais

25% off

Lathyrus odoratus 'Beaujolais'
£2.24 - £13.98
approx 20 seeds In stock (shipped within 2-3 working days)
9cm pot | 5 - 7 seedlings 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
Lathyrus odoratus Blue Velvet

New

Lathyrus odoratus 'Blue Velvet'
£2.62 - £7.99
approx 20 seeds available to order from autumn
9cm pot | 5 - 7 seedlings available to order from late spring
Lathyrus odoratus Bobby's Girl
Lathyrus odoratus 'Bobby's Girl'
£2.99 £2.24
approx 20 seeds available to order from autumn
Lathyrus odoratus Charlie's Angel

25% off

Lathyrus odoratus 'Charlie's Angel'
£3.49 £2.62
approx 20 seeds In stock (shipped within 2-3 working days)
0 star 0 star 0 star 0 star 1 star
Lathyrus odoratus Charlie's Angel
Lathyrus odoratus 'Charlie's Angel'
£7.99
9cm pot | 5 - 7 seedlings discontinued
1 star 1 star 1 star 1 star 1 star
Lathyrus odoratus Cupani

25% off

Lathyrus odoratus 'Cupani'
£2.84 - £13.98
approx 20 seeds In stock (shipped within 2-3 working days)
9cm pot | 5 - 7 seedlings available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
0 star 1 star 1 star 1 star 1 star
Lathyrus odoratus Daphne

25% off

Lathyrus odoratus 'Daphne'
£2.24 - £13.98
approx 20 seeds In stock (shipped within 2-3 working days)
9cm pot | 5 - 7 seedlings available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
Lathyrus odoratus Dorothy Eckford

25% off

Lathyrus odoratus 'Dorothy Eckford'
£2.99 £2.24
approx 20 seeds shipped within 2 weeks
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