loading
Close
Sort by
Show
By type
Facing
How much sun
Soil type
Special conditions
Curated Collections
RHS gifting
Sale
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: 1183
New
Dahlia Cafe de Paris
From £6.75
View options
RHS award of garden merit
Gladiolus murielae
From £6.99
View options
Dahlia Arabian Night
From £5.99
View options
Pollinator
Dahlia Bishop of Auckland (PBR)
From £6.49
View options
Pollinator
Dahlia Bishop of Canterbury (PBR)
From £5.79
View options
Pollinator
Dahlia Bishop of Dover
From £5.99
View options
Pollinator
Dahlia Bishop of Oxford
From £5.79
View options
Pollinator
Dahlia Bishop of York
From £5.99
View options
RHS award of garden merit
Dahlia Cornel Brons
From £5.99
View options
RHS award of garden merit
Dahlia Gallery Leonardo (PBR) (Gallery Series)
From £5.99
View options
Dahlia Karma Sangria (PBR)
From £5.99
View options
Dahlia Offshore Dream
From £5.99
View options
Dahlia Orfeo
From £5.99
View options
Dahlia Purple Gem
From £5.99
View options
Pollinator
Dahlia Rhubarb and Custard (Sweet Candy Series)
From £5.99
View options
Dahlia Tamburo
From £5.99
View options
RHS award of garden merit
Dahlia Totally Tangerine
From £5.39
View options
Dahlia Vassio Meggos
From £5.99
View options
Pollinator
Dahlia imperialis
From £7.99
View options
Gladiolus mixed colours
From £12.99
View options
Become an RHS Member today and save 1/3 on your first year