Category Archives: Aquatic

Nymphaea ‘Attraction’ (H)


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

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

‘Attraction’ is a perennial with broadly ovate, bronze-tinged leaves and cup-shaped deep rose-red flowers flecked with white, and with deep yellow stamens

Common Name: waterlily ‘Attraction’
Family: Nymphaeaceae
Color flower: Red, White and Yellow in Summer
Hardiness: old H4 (hardy)
Color foliage: Bronze and Green in Autumn, Spring and Summer
Height: Up to 10 cm
Habit: Submerged
Habit: Susceptible to water-lily beetle, water lily aphid, brown china-mark moth and false leaf-mining midge
Pruning: Deadhead and remove yellow leaves regularly
Spreadid: East-facing
Time to ultimate height: 2-5 years
Exposure: 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
Garden characteristics: Low Maintenance

Nymphaea ‘Masaniello’ (H)


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

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

‘Masaniello’ is an aquatic perennial with rounded mid-green leaves and large, fragrant, cupped pink flowers flecked with red, and with orange-yellow stamens

Common Name: waterlily ‘Masaniello’
Family: Nymphaeaceae
Color flower: Pink, Red and Yellow in Summer
Hardiness: old H4 (hardy)
Color foliage: Green in Autumn, Spring and Summer
Height: Up to 10 cm
Habit: Submerged
Habit: Susceptible to water-lily beetle, water lily aphid, brown china-mark moth and false leaf-mining midge
Pruning: Deadhead and remove yellow leaves regularly
Spreadid: East-facing
Time to ultimate height: 2-5 years
Exposure: 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
Garden characteristics: Low Maintenance

Myriophyllum spicatum


Myriophyllum can be submerged or marginal aquatic rhizomatous perennials, with finely dissected submerged leaves and small or minute flowers, solitary or in spikes from the leaf axils

M. spicatum is a submerged aquatic perennial with branched shoots bearing whorls of leaves pinnately divided into hairlike segments, with minute dull red flowers in spikes above the water surface, in summer

Common Name: spiked water milfoil
Family: Haloragaceae
Color flower: Dark Red in Summer
Hardiness: old H4 (hardy)
Color foliage: Green in Autumn, Spring and Summer
Height: Up to 10 cm
Habit: Submerged
Habit: Generally pest free
Pruning: Cut back regularly to avoid excessive growth
Spreadid: East-facing
Time to ultimate height: 5-10 years
Exposure: Grow in baskets of loamy soil in water at a depth of 1m in full sun
Garden characteristics: Low Maintenance or Wildlife Gardens

Potamogeton pectinatus


Potamogeton can be marginal or deep water aquatic perennials, with translucent submerged and leathery floating leaves, and small spikes of inconspicuous flowers held below or just above water level

P. pectinatus is a submerged perennial with thread-like submerged leaves and insignificant submerged flowers in summer; useful oxygenator

Common Name: fennel pondweed
Family: Potamogetonaceae
Color flower: Green in Summer
Hardiness: old H4 (hardy)
Height: Up to 10 cm
Habit: Submerged
Habit: Generally pest free
Pruning: Thin on a regular basis to keep in check
Spreadid: West-facing
Time to ultimate height: 5-10 years
Exposure: Grow in baskets of sandy loam in the bottom mud of the pond, in full sun or partial shade
Garden characteristics: Low Maintenance

Ceratophyllum demersum


Ceratophyllum are submerged aquatic perennials with whorled, linear leaves more crowded near the stem apex, and tiny insignificant flowers in the leaf axils in summer

C. demersum is a submerged perennial with forked, dark green leaves, with tiny flowers in summer

Common Name: hornwort
Family: Ceratophyllaceae
Color flower: White in Summer
Hardiness: old H4 (hardy)
Color foliage: Dark Green in Autumn, Spring and Summer
Height: Up to 10 cm
Habit: Submerged
Habit: Generally pest free
Pruning: No pruning required
Spreadid: East-facing
Time to ultimate height: 5-10 years
Exposure: Grow in water 30-90cm deep in full sun to shade. Plants float freely. Plants die back in winter but modified stem buds, turions, overwinter in bottom mud and re-grow in spring
Garden characteristics: Low Maintenance

Ranunculus aquatilis


Ranunculus can be annuals, biennials, evergreen or herbaceous perennials, with rhizomes, tubers or spreading by runners. The leaves are variable but often palmately lobed or dissected and the flowers usually bowl-shaped

R. aquatilis is a short-lived aquatic perennial with submerged leaves divided into thread-like segments, and palmately lobed floating leaves, and solitary white flowers 2cm across in summer

Common Name: common water crowfoot
Family: Ranunculaceae
Color flower: White in Summer
Hardiness: H7 (very hardy)
Color foliage: Green in Spring and Summer
Height: Up to 10 cm
Habit: Mat forming
Habit: Generally pest free
Pruning: Cut back after flowering
Spreadid: North-facing
Time to ultimate height: 1-2 years
Exposure: Grow in muddy pool margins in water 15-60cm deep, in full sun. Will grow in still or slow moving water
Garden characteristics: Low Maintenance or Wildlife Gardens

Lagarosiphon major


Lagarosiphon are semi-evergreen, submerged aquatic perennials forming a cluster of branched stems clothed in spirally arranged, linear-lanceolate leaves, and tiny white or pink flowers in summer

L. major is a submerged perennial with close-set, recurved, dark green leaves and small tubular pinkish flowers in summer; a useful oxygenator

Common Name: curly waterweed
Family: Hydrocharitaceae
Color flower: Green and Pink in Summer
Hardiness: old H4 (hardy)
Color foliage: Dark Green in Autumn, Spring, Summer and Winter
Height: Up to 10 cm
Habit: Submerged
Habit: Generally pest free
Pruning: Cut back regularly
Spreadid: West-facing
Time to ultimate height: 5-10 years
Exposure: Grow in submerged baskets of loamy soil in full sun. Cut back regularly to restrict spread and remove cut material from pond to prevent oxygen depletion
Garden characteristics: Sub-tropical