RHS Plants
RHS Plants

Shop

Information & Help

My account

Close
Sort by
Show
By type
Facing
How much sun
Soil type
Special conditions
Curated Collections
RHS gifting
Flower colour
Evergreen / deciduous
Fragrance
Attractive to wildlife
Quick growing
Eventual size
Indoor plants by room
Bulb divisions
Depth of water
Bedding planting time
Chelsea plant of year
Sowing month inside or protected
Sowing month outside
Vegetable harvesting month
Vegetable groups
Multibuy packs
Planting combinations
Hardy
Leaf colour
Ground cover
Position
Shape
Soil moisture
Kitchen garden planting guidelines

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.

Results found: 1204
Hibiscus syriacus Magenta Chiffon ('Rwoods5') (PBR) (Chiffon Series)
Hibiscus syriacus Magenta Chiffon ('Rwoods5') (PBR) (Chiffon Series)
£28.99
View details
Hibiscus syriacus Pink Chiffon ('Jwnwood4') (PBR) (Chiffon Series)
Hibiscus syriacus Pink Chiffon ('Jwnwood4') (PBR) (Chiffon Series)
£29.99
View details
Hibiscus syriacus Purple Pillar ('Gandini Santiago') (PBR)
Hibiscus syriacus Purple Pillar ('Gandini Santiago') (PBR)
£34.99
View details
RHS award of garden merit
Hibiscus syriacus Starburst Chiffon ('Rwoods6') (PBR) (Chiffon Series)
Hibiscus syriacus Starburst Chiffon ('Rwoods6') (PBR) (Chiffon Series)
£29.99
View details
RHS award of garden merit
Hibiscus syriacus White Chiffon ('Notwoodtwo') (PBR) (Chiffon Series)
Hibiscus syriacus White Chiffon ('Notwoodtwo') (PBR) (Chiffon Series)
£29.99
View details
Hydrangea Boléro Blue

Save 20% with HYDRA20

Hydrangea 'Boléro Blue'
£24.99
View details
New
Hydrangea arborescens Bellaragazza Limetta ('Ncha8') (PBR)

Save 20% with HYDRA20

Hydrangea arborescens Belleragazza Limetta ('Ncha8') (PBR)
£29.99
View details
New
Hydrangea arborescens FlowerWOW (´BALful´) (PBR)

Save 20% with HYDRA20

Hydrangea arborescens FlowerWOW (´BALful´) (PBR)
From £34.99
View options
Hydrangea arborescens Lime Rickey ('Smnhalr') (PBR)

Save 20% with HYDRA20

Hydrangea arborescens Lime Rickey ('Smnhalr') (PBR)
From £34.99
View options
Hydrangea arborescens Ruby Annabelle ('Ncha3') (PBR)

Save 20% with HYDRA20

Hydrangea arborescens Ruby Annabelle ('Ncha3') (PBR)
£39.99
View details
Hydrangea arborescens Sublime Annabelle ('SMNHRL') (PBR)

Save 20% with HYDRA20

Hydrangea arborescens Sublime Annabelle ('SMNHRL') (PBR)
From £34.99
View options
Hydrangea arborescens Sweet Annabelle ('Ncha4') (PBR)

Save 20% with HYDRA20

Hydrangea arborescens Sweet Annabelle ('Ncha4') (PBR)
£39.99
View details
Hydrangea aspera Villosa Group

Save 20% with HYDRA20

Hydrangea aspera 'Villosa Group'
£27.99
View details
Hydrangea macrophylla Blue

Save 20% with HYDRA20

Hydrangea macrophylla 'Blue'
£19.99
View details
Hydrangea macrophylla Dark Angel Red

Save 20% with HYDRA20

Hydrangea macrophylla 'Dark Angel Red'
£17.99
View details
Hydrangea macrophylla Kardinal Violet

Save 20% with HYDRA20

Hydrangea macrophylla 'Kardinal Violet'
£19.99
View details
RHS award of garden merit
Hydrangea macrophylla Koria (PBR)

Save 20% with HYDRA20

Hydrangea macrophylla 'Koria' (PBR)
£19.99
View details
RHS award of garden merit
Hydrangea macrophylla Lanarth White

Save 20% with HYDRA20

Hydrangea macrophylla 'Lanarth White'
From £19.99
View options
Hydrangea macrophylla Little Pink

Save 20% with HYDRA20

Hydrangea macrophylla 'Little Pink'
£17.99
View details
Hydrangea macrophylla Little Purple

Save 20% with HYDRA20

Hydrangea macrophylla 'Little Purple'
£19.99
View details
Hydrangea macrophylla Little White

Save 20% with HYDRA20

Hydrangea macrophylla 'Little White'
£17.99
View details
Hydrangea macrophylla Yulika

Save 20% with HYDRA20

Hydrangea macrophylla 'Yulika'
£25.99
View details
Hydrangea macrophylla Deep Purple Dance ('Schrolla02') (PBR) (Music Series)

Save 20% with HYDRA20

Hydrangea macrophylla Deep Purple Dance ('Schrolla02')(PBR) (Music Series)
£27.99
View details
Hydrangea macrophylla Glam Rock ('Horwack') (PBR)

Save 20% with HYDRA20

Hydrangea macrophylla Glam Rock ('Horwack') (PBR)
From £19.99
View options
Hydrangea macrophylla Love ('Youme H1917') (PBR)

Save 20% with HYDRA20

Hydrangea macrophylla Love ('Youme H1917') (PBR)
£24.99
View details
Hydrangea macrophylla Midnight Pearl ('Hokomamipe') (PBR)

Save 20% with HYDRA20

Hydrangea macrophylla Midnight Pearl ('Hokomamipe') (PBR)
£29.99
View details
Hydrangea macrophylla You & Me Together ('Youmefive') (PBR)

Save 20% with HYDRA20

Hydrangea macrophylla You & Me Together ('Youmefive') (PBR)
£24.99
View details
Hydrangea Miss Saori ('H2002') (PBR)

Save 20% with HYDRA20

Hydrangea Miss Saori ('H2002') (PBR)
£28.99
View details
Hydrangea paniculata Bombshell (PBR)

Save 20% with HYDRA20

Hydrangea paniculata 'Bombshell' (PBR)
£28.99
View details
Hydrangea paniculata Confetti ('Vlasveld 02') (PBR)

Save 20% with HYDRA20

Hydrangea paniculata Confetti ('Vlasveld 02') (PBR)
£24.99
View details
Hydrangea paniculata Fire Light ('Smhpfl') (PBR)

Save 20% with HYDRA20

Hydrangea paniculata Fire Light ('Abetwo') (PBR)
£44.99
View details
Hydrangea paniculata Polestar ('Breg14') (PBR)

Save 20% with HYDRA20

Hydrangea Polestar ('Breg14') (PBR)
£24.75
View details
Hydrangea quercifolia

Save 20% with HYDRA20

Hydrangea quercifolia
£89.99
View details
RHS award of garden merit
Hydrangea quercifolia Snowflake ('Brido')

Save 20% with HYDRA20

Hydrangea quercifolia Snowflake ('Brido')
£27.99
View details
RHS award of garden merit
Hypericum × hidcoteense Hidcote
Hypericum × hidcoteense 'Hidcote'
£17.99
View details
Hypericum × inodorum Magical Beauty ('Kolmbeau') (PBR) (Magical Series)
Hypericum × inodorum Magical Beauty ('Kolmbeau') (PBR)
£24.99
View details
Hypericum × moserianum Tricolor
Hypericum × moserianum 'Tricolor'
£17.99
View details
RHS award of garden merit
Itea ilicifolia
Itea ilicifolia
£49.99
View details
RHS award of garden merit
Lavandula angustifolia Miss Katherine
Lavandula angustifolia 'Miss Katherine'
£27.99
View details
Leycesteria formosa Purple Rain
Leycesteria formosa 'Purple Rain'
£19.99
View details
Magnolia grandiflora Little Gem
Magnolia grandiflora 'Little Gem'
From £79.99
View options
RHS award of garden merit
Magnolia liliiflora Nigra
Magnolia liliiflora 'Nigra'
From £49.99
View options
Pollinator
Mahonia eurybracteata subsp. ganpinensis Meteor ('Hillmah') (PBR)
Mahonia eurybracteata subsp. ganpinensis Meteor ('Hillmah') (PBR)
£49.99
View details
Pollinator
Malva × clementii Barnsley Baby
Malva × clementii 'Barnsley Baby'
£21.99
View details
Pollinator
Malva × clementii Barnsley
Malva × clementii 'Barnsley'
£21.99
View details
RHS award of garden merit
Malva × clementii Bredon Springs
Malva × clementii 'Bredon Springs'
£22.99
View details
RHS award of garden merit
Malva × clementii Rosea
Malva × clementii 'Rosea'
£24.99
View details
Parahebe catarractae Avalanche (PBR)
Parahebe catarractae 'Avalanche' (PBR)
£24.99
View details
Parahebe catarractae Pink Avalanche
Parahebe catarractae 'Pink Avalanche'
£24.99
View details
Pollinator
Perovskia Bluesette
Perovskia 'Bluesette'
From £9.99
View options
Pollinator
Perovskia Lacey Blue ('Lisslitt') (PBR)
Perovskia Lacey Blue ('Lisslitt') (PBR)
£19.99
View details
Pollinator
Perovskia Silvery Blue ('Lissvery') (PBR)
Perovskia Silvery Blue ('Lissvery') (PBR)
£19.99
View details
RHS award of garden merit
Potentilla fruticosa Pink Beauty
Potentilla fruticosa 'Pink Beauty' (PBR)
£21.99
View details
RHS award of garden merit
Potentilla fruticosa Primrose Beauty
Potentilla fruticosa 'Primrose Beauty'
From £23.99
View options
RHS award of garden merit
Potentilla fruticosa Abbotswood
Potentilla fruticosa Abbotswood
From £24.99
View options
Pollinator
Potentilla fruticosa Bellissima ('Hachliss') (PBR)
Potentilla fruticosa Bellissima ('Hachliss') (PBR)
£22.99
View details
RHS award of garden merit
Potentilla fruticosa Marian Red Robin ('Marrob')
Potentilla fruticosa Marian Red Robin ('Marrob')
£22.99
View details
Syringa meyeri Flowerfesta Pink ('Anny200817') (PBR) (Flowerfesta Series)
Syringa meyeri Flowerfesta Pink ('Anny200817') (PBR) (Flowerfesta Series)
£32.99
View details
Syringa meyeri Flowerfesta White ('Anny200810') (PBR) (Flowerfesta Series)
Syringa meyeri Flowerfesta White ('Anny200810') (PBR) (Flowerfesta Series)
£34.99
View details
RHS award of garden merit
Tamarix ramosissima Pink Cascade
Tamarix ramosissima 'Pink Cascade'
£22.99
View details
Pollinator
Veronica Pink Pixie
Veronica 'Pink Pixie'
£19.99
View details
RHS award of garden merit
Viburnum plicatum f. tomentosum Summer Snowflake
Viburnum plicatum f. tomentosum 'Summer Snowflake'
£32.99
View details
Vinca major
Vinca major
From £22.99
View options
RHS award of garden merit
Vinca major Variegata
Vinca major 'Variegata'
£17.99
View details
RHS award of garden merit
Vinca minor Azurea Flore Pleno
Vinca minor 'Azurea Flore Pleno'
£17.99
View details
Vinca minor Illumination
Vinca minor 'Illumination'
From £7.99
View options
RHS award of garden merit
Vinca minor Ralph Shugert
Vinca minor 'Ralph Shugert'
From £7.99
View options
Weigela All Summer Peach ('Slingpink') (All Summer Series)
Weigela All Summer Peach ('Slingpink') (PBR) (All Summer Series)
£25.99
View details
Weigela All Summer Red ('Slingco1') (PBR) (All Summer Series)
Weigela All Summer Red ('Slingco1') (PBR) (All Summer Series)
£24.99
View details
Pollinator
Weigela florida All Summer Monet ('Verweig 8') (PBR) (All Summer Series)
Weigela florida All Summer Monet ('Verweig 8') (PBR) (All Summer Series)
£24.99
View details
Weigela Picobella Rosa ('Tvp2') (PBR)
Weigela Picobella Rosa ('Tvp2') (PBR)
£23.99
View details
Pollinator
Arbutus unedo
Arbutus unedo
£34.99
View details
Phormium Platt's Black
Phormium 'Platt's Black'
£36.99
View details
Pollinator
Vitex agnus-castus Queen Bee
Vitex agnus-castus 'Queen Bee'
£34.99
View details
New
Bruised dahlia collection

20% off

Bruised dahlia collection
From £13.59
View options
New
Soft pink dahlia collection

20% off

Soft pink dahlia collection
From £14.20
View options
New
White dahlia collection

20% off

White dahlia collection
From £19.16
View options
Pollinator
Bees and butterflies dahlia collection

20% off

Bees & butterflies dahlia collection
From £19.16
View options
Pollinator
Chocolate orange pollinator dahlia collection

20% off

Chocolate orange pollinator dahlia collection
From £14.39
View options
Dinner plates dahlia collection

20% off

Dinner plates dahlia collection
From £13.80
View options
The Laundry Garden jewel dahlia collection

20% off

The Laundry Garden jewel dahlia collection
From £14.20
View options
Purple dahlia collection

20% off

Purple dahlia collection
From £14.20
View options
Pollinator
Agapanthus collection

20% off

Agapanthus 'collection'
From £10.36
View options
RHS award of garden merit
Award-winning crocosmia collection

20% off

Award-winning crocosmia collection
From £15.16
View options
New
Award-winning dahlia collection for pots

20% off

Award-winning dahlia collection for pots
From £14.20
View options
Begonia collection for hanging baskets & pots

20% off

Begonia collection for hanging baskets and pots
From £9.56
View options
Best white dahlia collection

20% off

Best white 'dahlia collection'
From £14.36
View options
Classic Canna collection

20% off

Classic canna collection
From £23.16
View options
Crocosmia collection

20% off

Crocosmia collection
From £14.36
View options
Pollinator
Dark leaved Bishop dahlia collection

20% off

Dark leaved bishop dahlia collection
From £14.36
View options
Dazzling dahlia collection

20% off

Dazzling dahlia collection
From £14.36
View options
Fashion beauties dahlia collection

20% off

Fashion beauties 'dahlia collection'
From £14.36
View options
Scented begonia collection

20% off

Fragrant begonia collection
From £11.96
View options
Giant dinner plate dahlia collection

20% off

Giant dinner plate 'dahlia collection'
From £14.36
View options
New
Jewel garden dahlia collection

20% off

Jewel garden dahlia collection
From £19.00
View options
New
John's pollinator 5 varieties dahlia collection

20% off

John's pollinator 5 varieties dahlia collection
From £22.76
View options
New
Nerine collection

20% off

Nerine collection
From £11.96
View options
Pastel perfection dahlia collection

20% off

Pastel perfection dahlia collection
From £13.80
View options
Pollinator
Pink and Red Bee and butterfly dahlia collection

20% off

Pink & red bee & butterfly dahlia collection
From £14.36
View options
Summer nights dahlia collection

20% off

Summer nights dahlia collection
From £14.36
View options
Become an RHS Member today and save 25% on your first year
Join now

Keep in touch

View our Privacy Policy
Contact us
Cookies
Terms
Privacy

© RHS Enterprises Limited 2026
Registered in England & Wales No. 01211648. | VAT No. GB461532757 | Registered Office: 80 Vincent Square, London, SW1P 2PE.

All sales help fund the charitable work of the RHS.