Monthly Archives: March 2015

Antirrhinum Coronette Series , formula mixed


Antirrhinum can be annuals, perennials or sub-shrubs, with simple leaves and tubular, 2-lipped flowers which may be solitary or in terminal racemes, in summer and autumn

Coronette Series are annuals to 70cm tall, with dense, erect racemes of two-lipped flowers in shades of crimson, scarlet, pink, purple, yellow and white. Resistant to rust and good for cutting

Common Name: snapdragon Coronette Series
Family: Plantaginaceae
Color flower: Pink, Purple, Red, White and Yellow in Autumn and Summer
Hardiness: old H3 (may need winter protection)
Color foliage: Green in Autumn, Spring and Summer
Height: 0.5-1 metres
Habit: Bushy
Habit: May be attacked by aphids
Pruning: Deadhead to prolong the flowering display
Spreadid: North-facing
Time to ultimate height: 1 year
Exposure: Grow in a sunny position in well-drained soil
Garden characteristics: City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds or Garden Edging

Rudbeckia amplexicaulis – wonderful summer flower

Imagine summer sunny day… The sun is on the sky and… in your garden as well…
Rudbeckia may be annuals, biennials or rhizomatous herbaceous perennials, with simple or pinnately divided leaves and large daisy-like flower-heads with yellow or orange rays surrounding a prominent conical disk

R. amplexicaulis is an erect annual with ovate, stem-clasping leaves and solitary yellow flowers 5-7cm across in late summer and early autumn, the large central disk brown

Common Name: clasping coneflower
Family: Asteraceae
Color flower: Brown and Yellow in Autumn and Summer
Hardiness: H7 (very hardy)
Color foliage: Blue and Green in Autumn, Spring and Summer
Height: 0.5-1 metres
Habit: Bushy
Habit: Slugs may damage young growth
Pruning: Cut back after flowering
Spreadid: North-facing
Time to ultimate height: 1-2 years
Exposure: Grow in moderately fertile heavy, moist but well-drained soil that does not dry out, in full sun or partial shade
Garden characteristics: City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds, Cut Flowers, Prairie Planting or Wildlife Gardens

Spiraea thunbergii

If you have enough space in your garden, you can plant Spiraea. This is very nice spring blooming plant.
Spiraea are deciduous shrubs, sometimes suckering, with simple leaves and short racemes, panicles or corymbs of small, 5-petalled white or pink flowers in spring or summer

S. thunbergii is a dense twiggy medium-sized deciduous shrub with narrow light green leaves to 4cm in length. White flowers 6mm in width are borne in abundant small clusters in spring and early summer

Common Name: Thunberg spiraea
Family: Rosaceae
Color flower: White in Spring and Summer
Hardiness: H6 (hardy – very cold winter)
Color foliage: Pale Green in Spring and Summer
Height: 1-1.5 metres
Habit: Bushy
Habit: Generally pest free
Pruning: Pruning group 2. If overgrown, can be renovated by cutting back hard immediately after flowering
Spreadid: East-facing
Time to ultimate height: 10-20 years
Exposure: Easy to grow in most moist soils, tolerant of all but the most extreme conditions. Especially suitable for mixed borders
Garden characteristics: Low Maintenance, Banks and Slopes, Cottage/Informal Garden or Flower borders and beds

Cerinthe major ‘Purpurascens’


Cerinthe can be annuals, biennials or perennials, with simple, often greyish leaves and tubular flowers borne in a pendent terminal cluster with conspicuous bracts

‘Purpurascens’ is an upright annual to 60cm, with blue-green leaves and tubular yellow and purple flowers with conspicuous purple bracts

Common Name: honeywort ‘Purpurascens’
Family: Boraginaceae
Color flower: Purple and Yellow in Summer
Hardiness: old H3-4 (intermediate between H3 and H4)
Color foliage: Blue and Green in Spring and Summer
Height: 0.5-1 metres
Habit: Bushy
Habit: Generally pest free
Pruning: Cut back after flowering
Spreadid: North-facing
Time to ultimate height: 1-2 years
Exposure: Grow in a well-drained, fertile soil in a sheltered position in full sun
Garden characteristics: City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds or Patio/Container Plants

Dianthus alpinus ‘Joan’s Blood’


Dianthus can be annuals, evergreen perennials or subshrubs with narrow, often greyish leaves and showy flowers that are frequently fragrant

Pinks are hardy, evergreen perennials which make compact mounds or mats of usually greyish leaves, with up to six, usually fragrant, single or double, medium-sized flowers per stem in early and mid-summer

‘Joan’s Blood’ is a hardy perennial forming a mat of dark grey-green foliage, with solitary deep crimson flowers 4cm wide, on stems 5-10cm tall

Common Name: alpine pink ‘Joan’s Blood’
Family: Caryophyllaceae
Color flower: Red in Summer
Hardiness: H6 (hardy – very cold winter)
Color foliage: Green and Grey/Silver in Autumn, Spring, Summer and Winter
Height: Up to 10 cm
Habit: Mat forming
Habit: Slugs and snails and aphids may be a problem
Pruning: Deadhead regularly to prolong flowering and maintain a compact habit
Spreadid: South-facing
Time to ultimate height: 2-5 years
Exposure: Grow in well-drained neutral to alkaline soil in full sun. Prefers soil enriched with well-rotted manure or garden compost and an application of a balanced fertiliser in spring
Garden characteristics: Cottage/Informal Garden, Flower borders and beds, Gravel Garden or Rock Garden

Sarcococca hookeriana var. humilis


Sarcococca are compact, sometimes suckering evergreen shrubs with simple, leathery leaves and tiny, fragrant creamy-white flowers in winter or spring, followed by red, purple or black berries which may persist into the following winter

S. hookeriana var. humilis is a compact suckering shrub to 60cm tall, forming a neat clump of glossy, elliptic leaves, with small clusters of very fragrant creamy-white flowers with crimson anthers, in winter, followed by black berries

Common Name: dwarf sweet box
Family: Buxaceae
Color flower: White in Winter
Hardiness: H5 (hardy – cold winter)
Color foliage: Green in Autumn, Spring, Summer and Winter
Height: 0.5-1 metres
Habit: Suckering
Habit: Generally pest free
Pruning: Pruning group 8
Spreadid: West-facing
Time to ultimate height: 10-20 years
Exposure: Grow in moderately fertile, moist but well-drained humus-rich soil in shade. Full sun may be tolerated when planted in damp soil. Also tolerant of atmospheric pollution, dry shade and neglect
Garden characteristics: City/Courtyard Gardens, Coastal, Cottage/Informal Garden or Flower borders and beds

Nigella damascena ‘Miss Jekyll Alba’


Nigella are upright, bushy annuals with finely dissected leaves and solitary flowers with 5 blue or white, petal-like sepals and feathery bracts, followed by ornamental seed pods

‘Miss Jekyll Alba’ is an annual of erect, bushy habit, with white flowers 4cm across, borne in summer well above the feathery foliage, and followed by decorative inflated seed capsules

Common Name: love-in-a-mist ‘Miss Jekyll Alba’
Family: Ranunculaceae
Color flower: White in Summer
Hardiness: H7 (very hardy)
Color foliage: Green in Spring and Summer
Height: 0.1-0.5 metres
Habit: Bushy
Habit: Generally trouble free
Pruning: No pruning necessary
Spreadid: North-facing
Time to ultimate height: 1 year
Exposure: Grow in any well-drained soil in full sun
Garden characteristics: City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds or Patio/Container Plants

Campanula latiloba ‘Alba’ AGM


Campanula may be annuals, herbaceous or evergreen perennials, with bell or star-shaped, often blue, flowers in late spring or summer

‘Alba’ is a perennial with bright green rosettes of oval leaves, and stiff stems set with narrowly lance-shaped leaves and terminating in a long spike of cup-shaped white flowers, 2-3 in each upper leaf axil

Common Name: great bellflower ‘Alba’
Family: Campanulaceae
Color flower: White in Summer
Hardiness: H7 (very hardy)
Color foliage: Green in Autumn, Spring and Summer
Height: 0.5-1 metres
Habit: Clump-forming
Habit: May be damaged by slugs and snails
Pruning: Cut back after flowering to prevent self-seeding and to encourage a second flush of flowers
Spreadid: North-facing
Time to ultimate height: 2-5 years
Exposure: Best grown in fertile, neutral to alkaline soil that is moist but well-drained; in partial shade or sun. Needs staking in exposed sites.
Garden characteristics: Cottage/Informal Garden, Flower borders and beds, Underplanting of Roses and Shrubs or Cut Flowers