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Aquatic

Nymphaea 'William Falconer' (H)

waterlily 'William Falconer'

An aquatic perennial with rounded leaves up to 20cm across, dark green flushed with dark red. The deep red, cup-shaped flowers are up to 15cm across, and produced freely from early summer to early autumn

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Plant nurseries
4 suppliers

Time to ultimate height

2–5 years

Ultimate spread

0.5–1 metres

Clay

Loam

Moisture

Poorly–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing

Exposure

Exposed or Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Nymphaeaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Submerged, Floating
Genus: Nymphaea are rhizomatous, submerged aquatic perennials with floating, rounded leaves and showy, sometimes fragrant, cup- or bowl-shaped flowers in a wide range of colours, held on or above the water and followed by submerged, berry-like fruits
Name status: Unresolved
Horticultural Group: Hardy Nymphaea are aquatic perennials with rounded floating leaves and showy flowers on or just above the water, with numerous narrow petals and conspicuous stamens, in white and shades of yellow, pink and red

How to grow

Cultivation

Grow in undisturbed water in full sun. Plant in baskets in loamy soil with crowns just below soil surface and covered with pea shingle. Position basket so that it is covered by 15-25 cm of water, as the plants establish lower the plants to twice the initial planting depth. Feed during the growing season with a proprietary aquatic fertiliser at the manufacturer's recommended rate. See waterlily cultivation

Propagation

Propagate by division of rhizomes or offsets in summer, place pots in shallow water until established

Suggested planting locations and garden types

Low Maintenance

Pruning

Deadhead and remove yellow leaves regularly

Pests

Susceptible to waterlily beetle, waterlily aphid, brown china-mark moth and leaf-mining midge. See waterlily pests

Diseases

May be affected by crown rot, brown spot and water lily leaf spot

Get involved

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