Tag Archives: white

Prunus laurocerasus ‘Otto Luyken’


Prunus can be deciduous or evergreen trees or shrubs with showy flowers in spring, and often good autumn foliage colour. Some have edible fruit in autumn, and a few species have ornamental bark’Otto Luyken’ is a spreading medium-sized evergreen shrub of dense, low growth, with narrow, glossy dark green leaves. Flowers small, white in erect racemes; fruits cherry-like, red turning glossy black
Common Name: cherry laurel ‘Otto Luyken’
Family: Rosaceae
Color flower: White in Spring
Hardiness: H5 (hardy – cold winter)
Color foliage: Dark Green in Autumn, Spring, Summer and Winter
Height: 0.5-1 metres
Habit: Bushy
Habit: Leaves may be damaged by vine weevil and leaf-mining moths
Pruning: Pruning group 1. In areas where silver leaf is prevalent pruning may be done in mid-summer
Spreadid: East-facing
Time to ultimate height: 10-20 years
Exposure: Easy to grow in any moist but well-drained moderately fertile soil in sun or partial shade. Its spreading habit makes it useful groundcover but may become chlorotic on poorer, shallow chalky soils
Garden characteristics: Drought Resistant, Hedging/Screens, Low Maintenance, Banks and Slopes or Ground Cover

Lathyrus latifolius ‘White Pearl’


Lathyrus can be annuals or herbaceous or evergreen perennials, mostly climbing, with pinnate leaves ending in a tendril, and showy pea-like flowers, fragrant in some species

‘White Pearl’ is a vigorous climbing herbaceous perennial to 2m, with winged stems and paired grey-green leaflets bearing tendrils. Up to 11 pure white flowers 2-3cm in width are borne in racemes

Common Name: everlasting pea ‘White Pearl’
Family: Papilionaceae
Color flower: White in Autumn and Summer
Hardiness: H7 (very hardy)
Color foliage: Green and Grey/Silver in Autumn, Spring and Summer
Height: 1.5-2.5 metres
Habit: Climbing
Habit: May be attacked by aphids, slugs and snails
Pruning: Cut back to ground level in autumn
Spreadid: West-facing
Time to ultimate height: 1-2 years
Exposure: Can be grown as a climber or allowed to scramble over banks and slopes. It copes with sun or partial shade in fertile well-drained soil
Garden characteristics: Banks and Slopes, Drought Resistant or Wall-side Borders


Pulsatilla vernalis – is it real?


Pulsatilla are herbaceous perennials forming clumps of finely dissected leaves, with solitary, hairy bell-shaped or cup-shaped flowers followed by silky-plumed seed-headsP. vernalis is a semi-evergreen perennial forming a clump to 10cm in height, with finely divided leaves and bell-shaped white flowers 6cm in width, nodding in bud, later upward-facing, followed by silky seed-heads
Common Name: lady of the snows
Family: Ranunculaceae
Color flower: White in Spring
Hardiness: H5 (hardy – cold winter)
Color foliage: Green in Autumn, Spring, Summer and Winter
Height: Up to 10 cm
Habit: Clump-forming
Habit: Generally pest free
Pruning: Leave faded flowers as seedheads are an attractive feature
Spreadid: South-facing
Time to ultimate height: 2-5 years
Exposure: Grow in very gritty, moist but sharply drained soil in full sun. Protect from excessive winter wet. It resents root disturbance and may be difficult to establish, so plant when small and leave undisturbed. Can also be grown in pots in an alpine house
Garden characteristics: Rock Garden, Gravel Garden or Patio/Container Plants

There is a great number of perennial flowers you can plant in your garden:


Pelargonium tomentosum (Sc)


Pelargonium can be perennials, sub-shrubs or shrubs, sometimes succulent and mostly evergreen, with palmately lobed or pinnately divided leaves and clusters of slightly irregular, 5-petalled flowers

Scented-leaved pelargoniums are evergreen shrubs or perennials with strongly aromatic foliage and small, single flowers in shades of pink, purple and white

P. tomentosum is a spreading plant to 75cm, with velvety, peppermint-scented, heart-shaped leaves to 10cm in width, and small clusters of tiny white flowers

Common Name: peppermint geranium
Family: Geraniaceae
Color flower: White in Summer
Hardiness: H1c (heated greenhouse – warm temperate)
Color foliage: Green in Autumn, Spring, Summer and Winter
Height: 0.5-1 metres
Habit: Bushy
Habit: Susceptible to vine weevil, caterpillars and thrips
Pruning: Deadhead regularly
Spreadid: West-facing
Time to ultimate height: 2-5 years
Exposure: Under glass grow in a loam-less or loam-based potting compost in full light with shade from hot sun with good ventilation. When in growth water moderately and apply a balanced liquid fertiliser in spring and early summer. A high potash fertiliser should be used when in flower. Water sparingly in winter. Can be grown outside in frost-free areas in a fertile soil
Garden characteristics: City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds or Patio/Container Plants

Penstemon ‘Pennington Gem’


Penstemon may be deciduous or evergreen perennials or subshrubs, with simple, narrow leaves and racemes or panicles of bell-shaped or funnel-shaped flowers in summer and early autumn

‘Pennington Gem’ is a compact semi-evergreen perennial forming a clump to 80cm in height, with narrow grey-green foliage and copious erect racemes or panicles of tubular, white-throated clear pink flowers 4cm in length

Common Name: penstemon ‘Pennington Gem’
Family: Plantaginaceae
Color flower: Pink and White in Autumn and Summer
Hardiness: H3 (half hardy – unheated greenhouse/mild winter)
Color foliage: Green and Grey/Silver in Autumn, Spring, Summer and Winter
Height: 0.5-1 metres
Habit: Clump-forming
Habit: May be attacked by slugs, snails and chrysanthemum eelworms
Pruning: Deadhead after flowering to maintain vigour, then cut back to base in winter
Spreadid: North-facing
Time to ultimate height: 2-5 years
Exposure: Grow in fertile, well-drained soil in full sun or partial shade. In cold areas, protect plant overwinter with a dry winter mulch
Garden characteristics: City/Courtyard Gardens, Cottage/Informal Garden or Flower borders and beds

Rhodohypoxis baurii


Rhodohypoxis are small clump-forming herbaceous perennials with tufts of hairy, narrowly lance-shaped leaves and solitary star-shaped, white, pink, red or purple flowers in summer

R. baurii is a clump-forming herbaceous perennial to 10cm, with narrowly lanceolate, keeled hairy leaves and solitary star-shaped pink to red flowers 2cm in width

Common Name: red star
Family: Hypoxidaceae
Color flower: Pink, Red, Pale Pink or Dark Pink in Summer
Hardiness: H4 (hardy – average winter)
Color foliage: Green in Spring and Summer
Height: Up to 10 cm
Habit: Clump-forming
Habit: Prone to glasshouse red spider mite and thrips when grown in an alpine house
Pruning: No pruning required
Spreadid: South-facing
Time to ultimate height: 2-5 years
Exposure: Grow in well-drained, moderately fertile, humus-rich, neutral to acid soil in full sun. Protect from excessive winter wet; can be grown in pots in an alpine house
Garden characteristics: Gravel Garden, Patio/Container Plants or Rock Garden

Freesia laxa var. alba


Freesia are cormous deciduous perennials with erect, linear to narrowly lance-shaped leaves and upright stems bearing terminal racemes of slender-tubed, salver-shaped or trumpet-shaped flowers that are usually scented

F. laxa var. alba is a slender cormous perennial with narrow leaves and lax racemes of long-tubed, starry white flowers in late spring or early summer

Common Name: white flowering grass
Family: Iridaceae
Color flower: White in Spring
Hardiness: H3 (half hardy – unheated greenhouse/mild winter)
Color foliage: Green in Autumn, Spring and Winter
Height: 0.1-0.5 metres
Habit: Columnar/Upright
Habit: Susceptible to glasshouse red spider mite, aphids
Pruning: Foliage can be removed after it dies down after flowering
Spreadid: South-facing
Time to ultimate height: 1 year
Exposure: Freesias are naturally winter-growers starting into growth in autumn through to late spring so need to be grown in a frost-free greenhouse. Plant in pots of John Innes No.2 loam-based compost with added grit sand. Place in full light with good ventilation, water well and feed monthly until flower buds form. After flowering dry off pots and store dry over the summer. Corms can also be stored dry over the winter and planted in well-drained soil in spring for later flowering. Lift in autumn and store dry
Garden characteristics: City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds, Gravel Garden or Wall-side Borders