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Plants that Flower in May

Longer days and warmer nights mean that plants are bursting with energy. Zesty colours will come from spurges, rhododendrons and the early-flowering geraniums.

By type
Facing
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Evergreen / deciduous
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Indoor plants by room
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RHS Chelsea Flower Show plant of year
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Used at RHS Chelsea Flower Show
Kitchen garden planting guidelines
Sort by availability
All items
Showing Flowering month : May clear all
752 items
Viola × wittrockiana Cool Wave Raspberry Swirl
pansy 'Cool Wave Raspberry Swirl'
From £5.59
available to order from winter
Viola × wittrockiana Cool Wave Violet Wing

New

pansy 'Cool Wave Violet Wing'
From £5.59
available to order from winter
Viola × wittrockiana Cool Wave White
pansy 'Cool Wave White'
From £5.59
available to order from winter
Viola × wittrockiana Mystique Blue Whiskers
pansy 'Mystique Blue Whiskers'
From £5.59
available to order from winter
Pelargonium sidoides
Pelargonium sidoides
From £6.39
available to order from winter
0 star 0.5 star 1 star 1 star 1 star 3.5 5 2 (2)
Petunia Easy Wave Silver ('Pas1016992') (Easy Wave Series)
Petunia Easy Wave Silver ('Pas1016992') (Surfinia Series)
From £6.39
available to order from winter
0.5 star 1 star 1 star 1 star 1 star 4.5 5 2 (2)
Petunia Easy Wave Red Velour ('Pas933560') (Easy Wave Series)
Petunia Easy Wave Red Velour ('Pas933560') (Easy Wave Series)
From £6.39
available to order from winter
Petunia Surfinia Deep Red ('Sunsurf Akatora') (PBR) (Surfinia Series)
Petunia Surfinia Deep Red ('Sunsurf Akatora') (PBR) (Surfinia Series)
From £6.39
available to order from winter
Petunia Surfinia Heavenly Blue (Surfinia Series)
Petunia Surfinia Heavenly Blue (Surfinia Series)
From £6.39
available to order from winter
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Petunia Surfinia Hot Pink (Surfinia Series)
Petunia Surfinia Hot Pink (Surfinia Series)
From £6.39
available to order from winter
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Petunia Surfinia Lime ('Keiyeul') (PBR) (Surfinia Series)
Petunia Surfinia Lime ('Keiyeul') (PBR) (Surfinia Series)
From £6.39
available to order from winter
1 star 1 star 1 star 1 star 1 star 5.0 5 4 (4)
Petunia Surfinia Purple (Surfinia Series)
Petunia Surfinia Purple (Surfinia Series)
From £6.39
available to order from winter
Pleione formosana
Pleione formosana
From £7.19
available to order from winter
1 star 1 star 1 star 1 star 1 star 5.0 5 1 (1)
Pleione Tongariro
Pleione Tongariro
From £7.99
available to order from winter
0.25 star 1 star 1 star 1 star 1 star 4.3 5 3 (3)
Primula Belarina Cream ('Kerbelcrem') (PBR) (Belarina Series)
Primula Belarina Cream ('Kerbelcrem') (PBR) (Belarina Series)
£6.99 £5.59
available to order from winter
Prunus Ukon
Prunus 'Ukon'
From £31.99
available to order from winter
0 star 0 star 0 star 1 star 1 star 2.0 5 1 (1)
Stocks Fragrance Mixed (10 Week Mixed)
Stocks 'Fragrance Mixed'
£29.99 £15.00
available to order from winter
0.25 star 1 star 1 star 1 star 1 star 4.3 5 10 (10)
Viola Sorbet XP Delft Blue (Sorbet XP Series)
Viola Sorbet XP Delft Blue (Sorbet XP Series)
From £5.59
available to order from winter
Viola Sorbet XP Morpho (Sorbet XP Series)
Viola Sorbet XP Morpho (Sorbet XP Series)
From £5.59
available to order from winter
Viola Sorbet XP Orange Jump Up (Sorbet XP Series)
Viola Sorbet XP Orange Jump Up (Sorbet XP Series)
From £5.59
available to order from winter
Viola Sorbet XP Pink Halo (Sorbet XP Series)
Viola Sorbet XP Pink Halo (Sorbet XP Series)
From £5.59
available to order from winter
Viola Sorbet XP Purple (Sorbet XP Series)
Viola Sorbet XP Purple (Sorbet XP Series)
From £5.59
available to order from winter
Viola Sorbet XP Red (Sorbet XP Series)
Viola Sorbet XP Red (Sorbet XP Series)
From £5.59
available to order from winter
Viola Sorbet XP White (Sorbet XP Series)
Viola Sorbet XP White (Sorbet XP Series)
From £5.59
available to order from winter
Viola × wittrockiana Cool Wave Strawberry Swirl
Viola × wittrockiana 'Cool Wave Strawberry Swirl'
From £5.59
available to order from winter
Erysimum Sugar Rush Orange (Sugar Rush Series)
wallflower 'Sugar Rush Orange' F1
From £3.19
available to order from winter
Erysimum Sugar Rush Primrose (Sugar Rush Series)
wallflower 'Sugar Rush Primrose' F1
From £3.19
available to order from winter
0.5 star 1 star 1 star 1 star 1 star (2)
Erysimum Sugar Rush Purple Bicolour (Sugar Rush Series)
wallflower 'Sugar Rush Purple Bicolour' F1
From £3.19
available to order from winter
1 star 1 star 1 star 1 star 1 star (4)
Erysimum Sugar Rush Red (Sugar Rush Series)
wallflower 'Sugar Rush Red' F1
From £3.19
available to order from winter
0 star 1 star 1 star 1 star 1 star (4)
Zantedeschia Captain Kelso (PBR) (Captain Series)
Zantedeschia 'Captain Kelso' (PBR) (Captain Series)
From £5.59
available to order from winter
Zantedeschia Odessa (PBR)
Zantedeschia 'Odessa' (PBR)
From £5.59
available to order from winter
Zantedeschia Red Alert
Zantedeschia 'Red Alert'
From £5.59
available to order from winter
Zantedeschia Sunset Passion
Zantedeschia 'Sunset Passion'
From £5.59
available to order from winter
Zantedeschia aethiopica

20% off

Zantedeschia aethiopica
From £5.59
9cm pot
0.25 star 1 star 1 star 1 star 1 star (8)
Antirrhinum majus Sonnet Series, formula mixed
Antirrhinum majus Sonnet Series mixed
£39.99 £20.00
sold out
1 star 1 star 1 star 1 star 1 star (16)
Carex oshimensis
Carex oshimensis
From £10.39
sold out
Chaenomeles speciosa Orange Storm (PBR)
Chaenomeles speciosa 'Orange Storm' (PBR)
£29.99 £20.99
sold out
1 star 1 star 1 star 1 star 1 star (1)
Chaenomeles speciosa Pink Storm (PBR)
Chaenomeles speciosa 'Pink Storm' (PBR)
£29.99 £23.99
sold out
1 star 1 star 1 star 1 star 1 star (1)
Myosotis sylvatica Sylvia Blue
forget me not 'Sylvia Blue'
From £10.79
sold out
1 star 1 star 1 star 1 star 1 star (1)
Myosotis sylvatica Sylvia White
forget me not 'Sylvia White'
From £13.19
sold out
Ilex aquifolium Alaska
Ilex aquifolium 'Alaska'
£36.99 £18.50
sold out
1 star 1 star 1 star 1 star 1 star (1)
Impatiens Beacon Select Mixture (Beacon Series)
Impatiens 'Beacon Select Mixture'
£36.99 £18.50
sold out
0.25 star 1 star 1 star 1 star 1 star (4)
Lobelia Bedding Mixed
Lobelia 'Bedding Mixed'
£34.99 £17.50
sold out
1 star 1 star 1 star 1 star 1 star (6)
Lobelia Trailing Mixed
Lobelia 'Trailing Mixed'
£34.99 £17.50
sold out
0.5 star 1 star 1 star 1 star 1 star (7)
Lobelia erinus Crystal Palace
Lobelia erinus 'Crystal Palace'
£34.99 £17.50
sold out
Lobelia erinus Fountain White (Fountain Series)
Lobelia erinus 'Fountain White' (Fountain Series)
£34.99 £17.50
sold out
1 star 1 star 1 star 1 star 1 star (1)
Nicotiana alata
Nicotiana alata
£8.99 £5.39
sold out
1 star 1 star 1 star 1 star 1 star (2)
Viola × wittrockiana Cool Wave Frost
pansy 'Cool Wave Frost'
From £5.59
sold out
Petunia Tidal Wave Silver (Tidal Wave Series)
Petunia 'Tidal Wave Silver (Tidal Wave Series)'
£9.99 £7.99
sold out
1 star 1 star 1 star 1 star 1 star (2)
Petunia Surfinia White ('Kesupite') (Surfinia Series)
Petunia Surfinia White ('Kepusite') (Surfinia Series)
From £6.39
sold out
1 star 1 star 1 star 1 star 1 star (1)
Pieris japonica Glowing Hearts ('Piesid2') (PBR)
Pieris japonica Glowing Hearts ('Piesid2') (PBR)
£19.99 £15.99
sold out
Sesleria Greenlee
Sesleria 'Greenlee'
From £7.99
sold out
1 star 1 star 1 star 1 star 1 star (1)
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