loading
Close
Sort by
Show
By type
Facing
How much sun
Soil type
Special conditions
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

Results found: 1187
Thalictrum delavayi
From £7.99
View options
RHS award of garden merit
Thalictrum delavayi Hewitt's Double
From £11.99
View options
New
Thunbergia alata SunEyes Rose Sensation
From £14.99
View options
New
Tradescantia (Andersoniana Group) JS Brainstorm (PBR)
From £9.56
View options
Tricyrtis formosana Dark Beauty
From £12.99
View options
RHS award of garden merit
Tulbaghia Purple Eye
From £10.99
View options
Verbascum Clementine
From £11.99
View options
New
Verbascum Peach Champagne (PBR)
From £9.99
View options
Pollinator
Verbena hastata
From £8.99
View options
Pollinator
Verbena hastata alba
From £8.99
View options
Verbena hastata f. Rosea
From £7.19
View options
RHS award of garden merit
Veronicastrum virginicum Lavendelturm
From £10.39
View options
Vinca minor Illumination
From £7.99
View options
RHS award of garden merit
Vinca minor Ralph Shugert
From £7.99
View options
Viola Etain
From £8.99
View options
Alcalthaea suffrutescens Parkrondell
From £9.99
View options
Anagallis tenella
From £21.99
View options
Anemopsis californica
From £21.99
View options
Aponogeton distachyos
From £34.99
View options
Assorted native oxygenating
From £19.99
View options
Pollinator
Cotula coronopifolia
From £21.99
View options
Houttuynia cordata Boo-Boo
From £21.99
View options
RHS award of garden merit
Lobelia cardinalis Queen Victoria
From £21.99
View options
Lobelia × speciosa Vedrariensis
From £21.99
View options
Nymphaea Madame Wilfon Gonnère
From £42.99
View options
Nymphaea Marliacea Carnea
From £42.99
View options
RHS award of garden merit
Nymphaea Marliacea Chromatella
From £38.99
View options
RHS award of garden merit
Nymphaea Perry Baby Red
From £38.99
View options
New
Nymphaea Virginalis
From £38.99
View options
Nymphaea Wanvisa
From £49.99
View options
New
Nymphaea Xiafei
From £38.99
View options
Nymphaea tetragona
From £31.19
View options
Ornamental colour pond plant collection
From £39.99
View options
UK grown
Streptocarpus Betty
From £17.99
View options
Pollinator
Wildlife pond plant collection
From £39.99
View options
New
Calibrachoa Cabaret Early Light Pink Eye (Cabaret Series)
From £6.99
View options
RHS award of garden merit
Nepeta racemosa Amelia
From £9.99
View options
Classic cottage alba combination
From £32.77
View options
Alisma subcordatum
From £27.99
View options
Marsilea quadrifolia
From £21.99
View options
RHS award of garden merit
Nymphaea Black Princess
From £31.99
View options
Nymphaea Paul Harriot
From £42.99
View options
New
Oenanthe japonica Flamingo
From £21.99
View options
Pollinator
Persicaria amphibia
From £27.99
View options
RHS award of garden merit
Crocosmia Hellfire
From £11.99
View options
RHS award of garden merit
Crocosmia Paul's Best Yellow
From £9.99
View options
Pollinator
Geum Totally Tangerine (PBR)
From £10.20
View options
Kniphofia uvaria
From £9.99
View options
Pollinator
Cosmos bipinnatus Cosimo Purple Red (Cosimo Series)
From £6.99
View options
Pollinator
Cosmos bipinnatus Cosimo Red-White (Cosimo Series)
From £6.99
View options
New
Nemesia Escential Pinkberry Improved (Escential Series)
From £5.59
View options
Pollinator
Nemesia Honey Bicolour Orange Flame (Honey Series)
From £5.59
View options
Become an RHS Member today and save 25% on your first year