Hardy cultivar selection
The smaller cultivars and dwarf waterlilies, suit half barrel or mini pond and water 30-45cm (1ft-18in) deep:
N. ‘Pygmaea Helvola’ AGM: Tiny olive-green leaves marked purple-brown spreading 30-45cm (1ft-18in). Free flowering star-shaped blooms of canary-yellow, flowering through summer.
Small to medium waterlilies need a water depth of 45-75cm (18-30in):
N.’James Brydon’ AGM: Good in part shade with purplish leaves spreading 90cm-1.2m (3-4ft) and fragrant free-flowering vivid rose-red flowers, June to September.
N. ‘Paul Hariot’: Has purple mottled leaves spreading to 1.2m (4ft). Sometimes known as a ‘changeable’ waterlily because the free flowering blooms change colour over the season. This particular one changes from creamy-apricot to deep pinkish-orange with age.
The largest waterlilies suit a large pond or lake, with a water depth of 75cm-1.2m (2.5-4ft):
N. ‘Escarboucle’ AGM: This is possibly the best red waterlily. A leaf spread of 1.2-2.5m (4-8ft) and fragrant, free-flowering, rich-red blooms, 30cm (1ft) across produced through summer.
N. ‘Gladstoniana’ AGM: Spreads vigorously with distinctive wavy-edged leaves and white flowers that are up to 30cm (1ft) across.
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