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: 1068
Hydrangea Boléro Blue

15% off

Hydrangea 'Boléro Blue'
£24.99 £21.24
View details
New
Hydrangea arborescens Bellaragazza Limetta ('Ncha8') (PBR)

15% off

Hydrangea arborescens Belleragazza Limetta ('Ncha8') (PBR)
£29.99 £25.49
View details
New
Hydrangea arborescens FlowerWOW (´BALful´) (PBR)

15% off

Hydrangea arborescens FlowerWOW (´BALful´) (PBR)
From £29.74
View options
Hydrangea arborescens Lime Rickey ('Smnhalr') (PBR)

15% off

Hydrangea arborescens Lime Rickey ('Smnhalr') (PBR)
From £29.74
View options
Hydrangea arborescens Ruby Annabelle ('Ncha3') (PBR)

15% off

Hydrangea arborescens Ruby Annabelle ('Ncha3') (PBR)
£39.99 £33.99
View details
Hydrangea arborescens Sublime Annabelle ('SMNHRL') (PBR)

15% off

Hydrangea arborescens Sublime Annabelle ('SMNHRL') (PBR)
From £31.44
View options
Hydrangea arborescens Sweet Annabelle ('Ncha4') (PBR)

15% off

Hydrangea arborescens Sweet Annabelle ('Ncha4') (PBR)
£37.99 £32.29
View details
RHS award of garden merit
Hydrangea aspera Hot Chocolate ('Haopr012') (PBR)

15% off

Hydrangea aspera Hot Chocolate ('Haopr012') (PBR)
£29.99 £25.49
View details
Hydrangea macrophylla Blue

15% off

Hydrangea macrophylla 'Blue'
£19.99 £16.99
View details
Hydrangea macrophylla Dark Angel Red

15% off

Hydrangea macrophylla 'Dark Angel Red'
£17.99 £15.29
View details
Hydrangea macrophylla Kardinal Violet

15% off

Hydrangea macrophylla 'Kardinal Violet'
£19.99 £16.99
View details
RHS award of garden merit
Hydrangea macrophylla Koria (PBR)

15% off

Hydrangea macrophylla 'Koria' (PBR)
£19.99 £16.99
View details
RHS award of garden merit
Hydrangea macrophylla Lanarth White

15% off

Hydrangea macrophylla 'Lanarth White'
From £16.99
View options
Hydrangea macrophylla Little Pink

15% off

Hydrangea macrophylla 'Little Pink'
£17.99 £15.29
View details
Hydrangea macrophylla Little Purple

15% off

Hydrangea macrophylla 'Little Purple'
£19.99 £16.99
View details
Hydrangea macrophylla Deep Purple Dance ('Schrolla02') (PBR) (Music Series)

15% off

Hydrangea macrophylla Deep Purple Dance ('Schrolla02')(PBR) (Music Series)
£19.99 £16.99
View details
Hydrangea macrophylla Glam Rock ('Horwack') (PBR)

15% off

Hydrangea macrophylla Glam Rock ('Horwack') (PBR)
From £16.99
View options
Hydrangea macrophylla Love ('Youme H1917') (PBR)

15% off

Hydrangea macrophylla Love ('Youme H1917') (PBR)
£24.99 £21.24
View details
Hydrangea macrophylla Midnight Pearl ('Hokomamipe') (PBR)

15% off

Hydrangea macrophylla Midnight Pearl ('Hokomamipe') (PBR)
£24.99 £21.24
View details
Hydrangea macrophylla You & Me Together ('Youmefive') (PBR)

15% off

Hydrangea macrophylla You & Me Together ('Youmefive') (PBR)
£24.99 £21.24
View details
Hydrangea Miss Saori ('H2002') (PBR)

15% off

Hydrangea Miss Saori ('H2002') (PBR)
£28.99 £24.64
View details
Hydrangea paniculata Bombshell (PBR)

15% off

Hydrangea paniculata 'Bombshell' (PBR)
£28.99 £24.64
View details
Hydrangea paniculata Fire Light ('Smhpfl') (PBR)

15% off

Hydrangea paniculata Fire Light ('Abetwo') (PBR)
£49.99 £42.49
View details
RHS award of garden merit
Hydrangea quercifolia Snowflake ('Brido')

15% off

Hydrangea quercifolia Snowflake ('Brido')
£27.99 £23.79
View details
RHS award of garden merit
Hypericum × hidcoteense Hidcote

15% off

Hypericum × hidcoteense 'Hidcote'
£17.99 £15.29
View details
Hypericum × inodorum Magical Beauty ('Kolmbeau') (PBR) (Magical Series)

15% off

Hypericum × inodorum Magical Beauty ('Kolmbeau') (PBR)
£24.99 £21.24
View details
Hypericum × moserianum Tricolor

15% off

Hypericum × moserianum 'Tricolor'
£17.99 £15.29
View details
RHS award of garden merit
Lavandula angustifolia Miss Katherine

15% off

Lavandula angustifolia 'Miss Katherine'
£19.99 £16.99
View details
Pollinator
Lavandula × intermedia Platinum Blonde ('Momparle') (PBR)

15% off

Lavandula × intermedia Platinum Blonde ('Momparler') (PBR)
£17.99 £15.29
View details
Leycesteria formosa Purple Rain

15% off

Leycesteria formosa 'Purple Rain'
£22.99 £19.54
View details
RHS award of garden merit
Leycesteria formosa Golden Lanterns ('Notbruce') (PBR)

15% off

Leycesteria Golden Lanterns ('Notbruce') (PBR)
£22.99 £19.54
View details
Magnolia grandiflora Exmouth

15% off

Magnolia grandiflora 'Exmouth'
£179.99 £152.99
View details
RHS award of garden merit
Magnolia liliiflora Nigra

15% off

Magnolia liliiflora 'Nigra'
From £42.49
View options
Pollinator
Mahonia eurybracteata subsp. ganpinensis Meteor ('Hillmah') (PBR)

15% off

Mahonia eurybracteata subsp. ganpinensis Meteor ('Hillmah') (PBR)
£59.99 £50.99
View details
Pollinator
Malva × clementii Barnsley

15% off

Malva × clementii 'Barnsley'
£21.99 £18.69
View details
RHS award of garden merit
Malva × clementii Bredon Springs

15% off

Malva × clementii 'Bredon Springs'
£22.99 £19.54
View details
RHS award of garden merit
Malva × clementii Rosea

15% off

Malva × clementii 'Rosea'
£24.99 £21.24
View details
Parahebe catarractae Avalanche (PBR)

15% off

Parahebe catarractae 'Avalanche' (PBR)
£24.99 £21.24
View details
Pollinator
Perovskia Bluesette

15% off

Perovskia 'Bluesette'
From £8.49
View options
Pollinator
Perovskia Lacey Blue ('Lisslitt') (PBR)

15% off

Perovskia Lacey Blue ('Lisslitt') (PBR)
£19.99 £16.99
View details
Pollinator
Perovskia Silvery Blue ('Lissvery') (PBR)

15% off

Perovskia Silvery Blue ('Lissvery') (PBR)
£19.99 £16.99
View details
Phormium Platt's Black

15% off

Phormium 'Platt's Black'
£36.99 £31.44
View details
RHS award of garden merit
Potentilla fruticosa Pink Beauty

15% off

Potentilla fruticosa 'Pink Beauty' (PBR)
£21.99 £18.69
View details
Pollinator
Potentilla fruticosa Bella Lindsey ('Hendlin') (PBR)

20% off

Potentilla fruticosa Bella Lindsey ('Hendlin') (PBR)
£22.99 £18.39
View details
Pollinator
Potentilla fruticosa Bellissima ('Hachliss') (PBR)

15% off

Potentilla fruticosa Bellissima ('Hachliss') (PBR)
£22.99 £19.54
View details
RHS award of garden merit
Potentilla fruticosa Marian Red Robin ('Marrob')

15% off

Potentilla fruticosa Marian Red Robin ('Marrob')
£22.99 £19.54
View details
Syringa meyeri Flowerfesta Pink ('Anny200817') (PBR) (Flowerfesta Series)

15% off

Syringa meyeri Flowerfesta Pink ('Anny200817') (PBR) (Flowerfesta Series)
£28.75 £24.44
View details
Syringa meyeri Flowerfesta White ('Anny200810') (PBR) (Flowerfesta Series)

15% off

Syringa meyeri Flowerfesta White ('Anny200810') (PBR) (Flowerfesta Series)
£34.99 £29.74
View details
RHS award of garden merit
Tamarix ramosissima Pink Cascade

15% off

Tamarix ramosissima 'Pink Cascade'
£24.99 £21.24
View details
RHS award of garden merit
Viburnum plicatum f. tomentosum Summer Snowflake

15% off

Viburnum plicatum f. tomentosum 'Summer Snowflake'
£32.99 £28.04
View details
Vinca major

15% off

Vinca major
From £19.54
View options
RHS award of garden merit
Vinca major Variegata

15% off

Vinca major 'Variegata'
£17.99 £15.29
View details
Vinca minor Illumination

15% off

Vinca minor 'Illumination'
From £6.79
View options
RHS award of garden merit
Vinca minor Ralph Shugert

15% off

Vinca minor 'Ralph Shugert'
From £6.79
View options
Weigela All Summer Peach ('Slingpink') (All Summer Series)

15% off

Weigela All Summer Peach ('Slingpink') (PBR) (All Summer Series)
£25.99 £22.09
View details
Weigela All Summer Red ('Slingco1') (PBR) (All Summer Series)

15% off

Weigela All Summer Red ('Slingco1') (PBR) (All Summer Series)
£24.99 £21.24
View details
Pollinator
Weigela florida All Summer Monet ('Verweig 8') (PBR) (All Summer Series)

15% off

Weigela florida All Summer Monet ('Verweig 8') (PBR) (All Summer Series)
£24.99 £21.24
View details
Weigela Picobella Rosa ('Tvp2') (PBR)

15% off

Weigela Picobella Rosa ('Tvp2') (PBR)
£23.99 £20.39
View details
RHS award of garden merit
Heptacodium miconioides

15% off

Heptacodium miconioides
From £76.49
View options
Daphne × transatlantica Pink Fragrance ('Blapink') (PBR)

15% off

Daphne × transatlantica Pink Fragrance ('Blapink') (PBR)
From £23.79
View options
RHS award of garden merit
Crocosmia × crocosmiiflora Carmin Brillant

15% off

Crocosmia × crocosmiiflora 'Carmin Brillant'
From £5.99
View options
Dahlia Ambition

15% off

Dahlia 'Ambition'
From £5.99
View options
RHS award of garden merit
Dahlia American Dawn

15% off

Dahlia 'American Dawn'
From £5.49
View options
Dahlia Arabian Night

15% off

Dahlia 'Arabian Night'
From £5.99
View options
Pollinator
Dahlia Bayou (PBR)

15% off

Dahlia 'Bayou' (PBR)
From £5.99
View options
Pollinator
Dahlia Bishop of Canterbury (PBR)

15% off

Dahlia 'Bishop of Canterbury' (PBR)
From £5.79
View options
Pollinator
Dahlia Bishop of Dover

15% off

Dahlia 'Bishop of Dover'
From £5.99
View options
RHS award of garden merit
Dahlia Bishop of Llandaff

15% off

Dahlia 'Bishop of Llandaff'
From £5.99
View options
Dahlia Cafe au Lait

15% off

Dahlia 'Café au Lait'
From £5.39
View options
RHS award of garden merit
Dahlia Chat Noir

15% off

Dahlia 'Chat Noir'
From £5.79
View options
RHS award of garden merit
Dahlia Crème de Cassis

15% off

Dahlia 'Crème de Cassis'
From £5.99
View options
RHS award of garden merit
Dahlia David Howard

15% off

Dahlia 'David Howard'
From £5.79
View options
Dahlia Downham Royal

15% off

Dahlia 'Downham Royal'
From £5.99
View options
Dahlia Eveline

15% off

Dahlia 'Eveline'
From £5.99
View options
Dahlia French Cancan

15% off

Dahlia 'French Cancan'
From £5.99
View options
Pollinator
Dahlia Honka Fragile

15% off

Dahlia 'Honka Fragile'
From £5.99
View options
RHS award of garden merit
Dahlia Labyrinth

15% off

Dahlia 'Labyrinth'
From £5.99
View options
Pollinator
Dahlia Mexican Star

15% off

Dahlia 'Mexican Star'
From £5.99
View options
RHS award of garden merit
Dahlia Moonfire

15% off

Dahlia 'Moonfire'
From £5.99
View options
Dahlia Nuit d'Eté

15% off

Dahlia 'Nuit d'Eté'
From £5.79
View options
Dahlia Orfeo

15% off

Dahlia 'Orfeo'
From £5.99
View options
Dahlia Rip City

15% off

Dahlia 'Rip City'
From £5.79
View options
Dahlia Soulman

15% off

Dahlia 'Soulman'
From £5.99
View options
Dahlia Spartacus' Senior

15% off

Dahlia 'Spartacus' Senior'
From £5.99
View options
Dahlia Thomas A. Edison

15% off

Dahlia 'Thomas A. Edison'
From £5.79
View options
RHS award of garden merit
Dahlia Totally Tangerine

15% off

Dahlia 'Totally Tangerine'
From £5.39
View options
Dahlia Verrones Obsidian

15% off

Dahlia 'Verrone's Obsidian'
From £5.39
View options
RHS award of garden merit
Dahlia Waltzing Mathilda

15% off

Dahlia 'Waltzing Mathilda'
From £5.79
View options
RHS award of garden merit
Dahlia Pretty Woman ('Vdtg43') (PBR) (Dark Angel Series)

15% off

Dahlia Pretty Woman ('Vdtg43') (PBR) (Dark Angel Series)
From £5.99
View options
Pollinator
Dahlia merckii

15% off

Dahlia merckii
From £5.09
View options
RHS award of garden merit
Panicum virgatum Shenandoah

15% off

Panicum virgatum 'Shenandoah'
From £8.49
View options
RHS award of garden merit
Pennisetum alopecuroides Hameln

15% off

Pennisetum alopecuroides 'Hameln'
From £8.49
View options
RHS award of garden merit
Miscanthus sinensis Ferner Osten

15% off

Miscanthus sinensis 'Ferner Osten'
From £16.99
View options
Miscanthus sinensis Gracillimus

15% off

Miscanthus sinensis 'Gracillimus'
From £8.49
View options
Miscanthus sinensis Malepartus

15% off

Miscanthus sinensis 'Malepartus'
From £10.19
View options
RHS award of garden merit
Miscanthus sinensis Zebrinus

15% off

Miscanthus sinensis 'Zebrinus'
From £10.19
View options
RHS award of garden merit
Molinia caerulea subsp. arundinacea Transparent

15% off

Molinia caerulea subsp. arundinacea 'Transparent'
From £8.49
View options
RHS award of garden merit
Panicum virgatum Heavy Metal

15% off

Panicum virgatum 'Heavy Metal'
From £8.49
View options
Panicum virgatum Rehbraun

15% off

Panicum virgatum 'Rehbraun'
From £8.49
View options
RHS award of garden merit
Pennisetum Fairy Tails

15% off

Pennisetum 'Fairy Tails'
From £8.49
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.