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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
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Evergreen / deciduous
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Indoor plants by room
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Chelsea plant of year
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Used at Chelsea
Kitchen garden planting guidelines
Sort by lowest price
Available items
Showing Flowering month : September clear all
893 items
Phacelia tanacetifolia
Phacelia tanacetifolia - green manure
£2.89
25m² pack In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 3
Cosmos bipinnatus Purity
Cosmos bipinnatus 'Purity'
£2.89 - £36.99
approx 100 seeds In stock (shipped within 2-3 working days)
5 × seedlings | jumbo sold out
10 + 5 FREE seedlings | jumbo sold out
40 + 20 FREE seedlings sold out
0.25 star 1 star 1 star 1 star 1 star 4.4 5 14
Centaurea cyanus Classic Magic
Centaurea cyanus 'Classic Magic'
£2.89
approx 100 seeds In stock (shipped within 2-3 working days)
Orlaya grandiflora
Orlaya grandiflora
£2.89 - £6.99
approx 25 seeds In stock (shipped within 2-3 working days)
9cm pot available to order from autumn
0 star 1 star 1 star 1 star 1 star 4.1 5 9
Thunbergia alata Susie Orange with Black Eye (Susie Series)
Thunbergia alata 'Susie Orange with Black Eye' (Susie Series)
£2.89 - £25.98
approx 30 seeds In stock (shipped within 2-3 working days)
5 × seedlings | jumbo sold out
10 + 5 FREE seedlings | jumbo sold out
0 star 0 star 1 star 1 star 1 star 3.0 5 2
Galium verum
Galium verum
£2.99 - £34.99
approx 250 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)
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Eupatorium cannabinum
Eupatorium cannabinum
£2.99 - £49.99
approx 200 seeds In stock (shipped within 2-3 working days)
1 litre aquatic pot available to order from summer
3 litre aquatic pot available to order from summer
3 × 1 litre aquatic pots available to order from summer
5 litre aquatic pot available to order from summer
Tropaeolum Baby Rose
nasturtium - Tropaeolum 'Baby Rose'
£2.99
approx 30 seeds In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Cosmos bipinnatus Apricota
Cosmos bipinnatus 'Apricota'
£2.99 - £19.98
approx 50 seeds In stock (shipped within 2-3 working days)
9cm pot available to order from autumn
5 × seedlings | jumbo sold out
2 + 1 FREE 9cm pots available to order from autumn
10 + 5 FREE seedlings | jumbo sold out
0 star 0.25 star 1 star 1 star 1 star 3.3 5 3
Helianthus annuus Ms Mars
Helianthus annuus 'Ms Mars'
£2.99
approx 20 seeds In stock (shipped within 2-3 working days)
Mimosa pudica
Mimosa pudica
£2.99
approx 150 seeds In stock (shipped within 2-3 working days)
Callistephus chinensis Light Blue
Callistephus chinensis 'Light Blue'
£2.99
approx 100 seeds In stock (shipped within 2-3 working days)
Centaurea cyanus Blue Ball
Centaurea cyanus 'Blue Ball'
£2.99
approx 325 seeds In stock (shipped within 2-3 working days)
Lathyrus odoratus Winston Churchill
Lathyrus odoratus 'Winston Churchill'
£2.99 - £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
Centaurea cyanus Classic Fantastic
Centaurea cyanus 'Classic Fantastic'
£2.99
approx 100 seeds In stock (shipped within 2-3 working days)
Consolida regalis QIS Dark Blue
Consolida regalis 'QIS Dark Blue'
£2.99
approx 200 seeds In stock (shipped within 2-3 working days)
Lathyrus odoratus Top Hat
Lathyrus odoratus 'Top Hat'
£2.99
approx 20 seeds In stock (shipped within 2-3 working days)
Lathyrus odoratus Beaujolais
Lathyrus odoratus 'Beaujolais'
£2.99 - £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 5.0 5 2
Campanula trachelium
Campanula trachelium
£2.99
approx 150 seeds In stock (shipped within 2-3 working days)
Amaranthus caudatus Cascade Green
Amaranthus caudatus 'Cascade Green'
£2.99
approx 2200 seeds In stock (shipped within 2-3 working days)
Consolida regalis QIS Rose
Consolida regalis 'QIS Rose'
£2.99
approx 200 seeds In stock (shipped within 2-3 working days)
Cosmos bipinnatus Sensation Pinkie (Sensation Series)
Cosmos bipinnatus 'Sensation Pinkie' (Sensation Series)
£2.99
approx 100 seeds In stock (shipped within 2-3 working days)
Centaurea nigra
Centaurea nigra
£2.99 - £34.99
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)
6 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Borago officinalis Alba
borage - white borage
£2.99
approx 50 seeds In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Anthemis arvensis
Anthemis arvensis
£2.99
approx 100 seeds In stock (shipped within 2-3 working days)
Verbena rigida Santos

20% off

Verbena rigida 'Santos'
£2.99 - £15.99
approx 40 seeds In stock (shipped within 2-3 working days)
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
Lepidium sativum
Lepidium sativum
£2.99
approx 4500 seeds In stock (shipped within 2-3 working days)
Cosmos bipinnatus Candy Stripe
Cosmos bipinnatus 'Candy Stripe'
£2.99
approx 100 seeds In stock (shipped within 2-3 working days)
Nepeta cataria
catnip / Nepeta cataria
£2.99 - £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
Lathyrus odoratus Daphne
Lathyrus odoratus 'Daphne'
£2.99 - £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
Tropaeolum majus Red Troika
nasturtium - Tropaeolum majus 'Red Troika'
£2.99
approx 25 seeds In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
Achillea millefolium
Achillea millefolium
£2.99 - £34.99
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)
Cosmos sulphureus Bright Lights mixed
Cosmos sulphureus 'Bright Lights mixed'
£2.99
approx 100 seeds In stock (shipped within 2-3 working days)
Nicotiana Whisper Mixed F1
Nicotiana 'Whisper Mixed' F1
£2.99 - £36.99
approx 70 seeds In stock (shipped within 2-3 working days)
40 + 20 FREE seedlings sold out
1 star 1 star 1 star 1 star 1 star
Papaver rhoeas Amazing Grey
Papaver rhoeas 'Amazing Grey'
£2.99 - £19.99
approx 250 seeds In stock (shipped within 2-3 working days)
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
0.5 star 1 star 1 star 1 star 1 star
Linaria purpurea Canon Went

20% off

Linaria purpurea 'Canon Went'
£2.99 - £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)
approx 100 seeds available to order from autumn
0.5 star 1 star 1 star 1 star 1 star
Linaria maroccana Licilia Red (Licilia Series)
Linaria maroccana 'Licilia Red' (Licilia Series)
£2.99
approx 500 seeds In stock (shipped within 2-3 working days)
Cobaea scandens
Cobaea scandens
£2.99
approx 15 seeds In stock (shipped within 2-3 working days)
Knautia arvensis
Knautia arvensis
£2.99
approx 25 seeds In stock (shipped within 2-3 working days)
0 star 0 star 0 star 1 star 1 star
Glebionis segetum
Glebionis segetum
£2.99
approx 30 seeds In stock (shipped within 2-3 working days)
Lathyrus odoratus Leamington
Lathyrus odoratus 'Leamington'
£2.99 - £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
Gaillardia × grandiflora Burgunder

20% off

Gaillardia × grandiflora 'Burgunder'
£2.99 - £15.99
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)
Malva moschata
Malva moschata
£2.99
approx 50 seeds In stock (shipped within 2-3 working days)
Lathyrus odoratus Midnight
Lathyrus odoratus 'Midnight'
£2.99 - £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
Prunella vulgaris
Prunella vulgaris
£2.99 - £34.99
approx 100 seeds shipped within 2 weeks
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)
Centaurea scabiosa
Centaurea scabiosa
£2.99
approx 20 seeds In stock (shipped within 2-3 working days)
Tagetes tenuifolia Golden Gem
Tagetes tenuifolia 'Golden Gem'
£2.99
approx 225 seeds In stock (shipped within 2-3 working days)
Linaria maroccana Licilia Violet (Licilia Series)
Linaria maroccana 'Licilia Violet' (Licilia Series)
£2.99
approx 500 seeds In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star
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