Category Archives: Alpine/Rockery

Fritillaria biflora ‘Martha Roderick’


Fritillaria are bulbous herbaceous perennials with lance-shaped or linear leaves and nodding bell-shaped or bowl-shaped flowers that may be solitary or in racemes or umbels

‘Martha Roderick’ is a bulbous perennial to 30cm tall, with glossy lance-shaped leaves and deep reddish-purple, bell-shaped flowers, each tepal white in the outer half, opening in early spring

Common Name: black fritillary ‘Martha Roderick’
Family: Liliaceae
Color flower: Purple and White in Spring
Hardiness: old H3-4 (intermediate between H3 and H4)
Color foliage: Green in Spring
Height: 0.1-0.5 metres
Habit: Bushy
Habit: Slugs and lily beetles may be a nuisance
Pruning: No pruning necessary
Spreadid: South-facing
Time to ultimate height: 2-5 years
Exposure: Grow in a well-drained soil and full sun, with shelter from rain. Ideal to grow in a cold greenhouse or bulb frame in order to keep bulbs almost dry when dormant. Under glass, grow in loam-based potting compost with added grit and leaf mould
Garden characteristics: City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds or Patio/Container Plants

Primula ‘Tantallon’ (Pe)


Primula are herbaceous or semi-evergreen perennials, forming a basal rosette of simple leaves, with salver-shaped or bell-shaped flowers which may be solitary or carried in an umbel or in whorls on an erect stem

Petiolares primulas are rosette-forming herbaceous perennials dying back to a tight rosette or resting bud in winter, with umbels of flowers

‘Tantallon’ is a rosette-forming deciduous perennial to 10cm tall, with toothed, grey-green leaves and clusters of light violet-blue flowers with white eyes, opening in late winter and spring

Common Name: primrose ‘Tantallon’
Family: Primulaceae
Color flower: Blue in Spring and Winter
Hardiness: old H4 (hardy)
Color foliage: Green and Grey/Silver in
Height: Up to 10 cm
Habit: Bushy
Habit: Prone to damage by slugs and snails, vine weevil, aphids, woodlice, earwigs and cutworms
Pruning: No pruning required
Spreadid: South-facing
Time to ultimate height: 2-5 years
Exposure: Grow in deep or partial shade in moist but sharply drained acid soil; protect from excessive winter wet
Garden characteristics: Cottage/Informal Garden, Flower borders and beds, Gravel Garden, Rock Garden or Patio/Container Plants

Dionysia ‘Charlson Thomas’


Dionysia are small evergreen perennials forming cushions of oblong or spoon-shaped leaves, with 5-petalled, salver-shaped, yellow, pink or purple flowers in spring or early summer

‘Charlson Thomas’ is a small, hummock-forming plant with tiny leaves and abundant, pale lilac flowers, each with a light yellow eye, opening in early spring

Common Name: dionysia ‘Charlson Thomas’
Family: Primulaceae
Color flower: Pale Blue in Spring
Hardiness: old H4 (hardy)
Color foliage: Green in Autumn, Spring, Summer and Winter
Height: Up to 10 cm
Habit: Mat forming
Habit: Generally pest free
Pruning: No pruning required
Spreadid: South-facing
Time to ultimate height: 5-10 years
Exposure: Grow under glass or in an alpine house in a mix of 3 parts grit to one part each of loam and leaf mould. Provide a deep collar of grit and maintain good ventilation in full light. When in growth water sparingly from below (ensuring the collar is kept dry) and water sparingly in winter. Also easy to grow outdoors in tufa in full sun but protect plant surface from wet
Garden characteristics: Patio/Container Plants or Rock Garden

Dianthus pavonius


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

D. pavonius is a cushion-forming evergreen perennial with green or slightly greyish leaves and 10cm stems bearing 1-3 flowers, 2cm wide, with pale or deep pink petals, buff on reverse

Common Name: grass rose pink
Family: Caryophyllaceae
Color flower: Pink and Pale Pink 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: Bushy
Habit: Aphids and slugs may weaken garden plants
Pruning: No pruning required
Spreadid: South-facing
Time to ultimate height: 2-5 years
Exposure: Grow in well-drained neutral to acid soil in full sun
Garden characteristics: Banks and Slopes, City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds, Gravel Garden, Rock Garden or Patio/Container Plants

Lachenalia contaminata AGM


Lachenalia are bulbous perennials with strap-shaped, sometimes dark-spotted leaves, and erect stems bearing racemes or spikes of tubular flowers, slightly fragrant in some species, in autumn, winter or early spring

L. contaminata is an erect bulbous perennial to 25cm tall, with narrow, grass-like leaves and erect stems bearing narrowly bell-shaped white flowers tipped with maroon, in spring

Common Name: wild hyacinth
Family: Asparagaceae
Color flower: White and Dark Purple in Spring
Hardiness: H2 (tender – cool or frost-free greenhouse)
Color foliage: Green in Autumn, Spring and Winter
Height: 0.1-0.5 metres
Habit: Bushy
Habit: Generally pest free
Pruning: No pruning necessary
Spreadid: South-facing
Time to ultimate height: 2-5 years
Exposure: Under glass grow in a loam-based potting compost in full light. Water moderately until in full growth then water freely, adding a balanced liquid fertiliser every 10-14 days. Reduce watering as the leaves fade, then keep dry until fresh growth starts in autumn
Garden characteristics: Patio/Container Plants

Armeria juniperifolia ‘Bevan’s Variety’ AGM


Armeria are evergreen perennials forming tufts or mats of strap-shaped or linear leaves, with long-stalked, dense clusters of small cup-shaped flowers

‘Bevan’s Variety’ is a compact evergreen perennial forming low mats to 15cm in width, with needle-like leaves and rosy-pink flowers on stems to 5cm in height

Common Name: thrift ‘Bevan’s Variety’
Family: Plumbaginaceae
Color flower: Dark Pink in Spring
Hardiness: H5 (hardy – cold winter)
Color foliage: Green and Grey/Silver in Autumn, Spring, Summer and Winter
Height: Up to 10 cm
Habit: Mat forming
Habit: Generally pest free
Spreadid: South-facing
Time to ultimate height: 5-10 years
Exposure: Grow in well-drained, poor to moderately fertile soil in an open situation in full sun
Garden characteristics: Coastal, Cottage/Informal Garden, Garden Edging, Gravel Garden, Rock Garden, Low Maintenance or Patio/Container Plants

Crocus banaticus AGM


Crocus are dwarf, deciduous perennials growing from a corm, with linear leaves usually with a silvery central stripe, and goblet-shaped, sometimes fragrant flowers in autumn or early spring

C. banaticus is a perennial corm with lilac to light purple flowers produced before the leaves in early autumn. Inner tepals much smaller than outer ones, which reflex in strong sun

Common Name: Byzantine crocus
Family: Iridaceae
Color flower: Purple and Pale Purple in Autumn
Hardiness: H5 (hardy – cold winter)
Color foliage: Green in Autumn
Height: Up to 10 cm
Habit: Tufted
Habit: Corms are vulnerable to mice, voles and squirrels
Pruning: No pruning required
Spreadid: South-facing
Time to ultimate height: 2-5 years
Exposure: Grow in a moderately fertile, humus-rich, moderately well-drained soil
Garden characteristics: City/Courtyard Gardens, Flower borders and beds, Gravel Garden, Patio/Container Plants or Rock Garden

Cyclamen rhodium


Cyclamen are tuberous perennials with rounded, sometimes angular, leaves which are often attractively mottled. The nodding, characteristically shaped flowers have 5 reflexed and twisted petals, often with dark markings at the base

C. rhodium is a small tuberous plant with rounded leaves speckled with grey-green, and scented rosy-pink flowers, darker at the mouth, opening in late spring

Common Name: Peloponnesian cyclamen
Family: Primulaceae
Color flower: Dark Pink in Spring
Hardiness: old H2-3 (intermediate between H2 and H3)
Color foliage: Green and Grey/Silver in
Height: Up to 10 cm
Habit: Bushy
Habit: Mice or squirrels may be a problem; prone to red spider mites, vine weevil and cyclamen mite
Pruning: No pruning required
Spreadid: South-facing
Time to ultimate height: 1-2 years
Exposure: Grow in moderately fertile, humus-rich, well-drained soil in part shade, under trees or shrubs, to avoid excessive summer moisture. Mulch annually with leaf mould as leaves wither; in areas with prolonged frost provide a deep, loose mulch
Garden characteristics: City/Courtyard Gardens, Cottage/Informal Garden, Gravel Garden, Patio/Container Plants, Rock Garden or Underplanting of Roses and Shrubs