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ENDS TONIGHT: 15% off ALL plants, seeds and bulbs

RHS Plants Home Plants Perennials

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Perennials
Flowering month : August
Depth of water : 5-25cm
Hardy : Yes

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Results found: 8

Lobelia cardinalis

15% off

Lobelia cardinalis

~~£11.99~~ £10.19

Isolepis cernua

15% off

Isolepis cernua

From £12.74

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1 litre aquatic pot	£12.74
3 litre aquatic pot	£29.74
3 × 1 litre aquatic pots	£33.99
3 × 9cm pots	£23.79
2 litre aquatic pot	£25.49

Iris Berlin Tiger

15% off

Iris 'Berlin Tiger'

~~£14.99~~ £12.74

Iris pseudacorus

Iris pseudacorus

From £11.04

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9cm pot	£11.04
3 × 9cm pots	£28.90

Iris pseudacorus var. bastardii

Iris pseudacorus var. bastardii

From £18.69

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1 litre aquatic pot	£18.69
3 litre aquatic pot	£29.74
3 × 1 litre aquatic pots	£33.99

Iris pseudacorus Variegata

Iris pseudacorus 'Variegata'

From £29.74

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3 litre aquatic pot	£29.74
5 litre aquatic pot	£42.49

Iris pseudacorus Flore Pleno

Iris pseudacorus 'Flore Pleno'

From £29.74

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3 litre aquatic pot	£29.74
5 litre aquatic pot	£42.49

Lysimachia nummularia

Lysimachia nummularia

From £18.69

View options

1 litre aquatic pot	£18.69
3 × 9cm pots	£23.79
3 litre aquatic pot	£29.74
3 × 1 litre aquatic pots	£33.99

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© 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.