Monthly Archives: June 2016

Camassia cusickii


Camassia are bulbous perennials with narrow, channelled leaves and erect racemes of star-shaped violet-blue or creamy-white flowers in early summer

C. cusickii is an upright perennial forming a clump of long, linear leaves; starry blue flowers 5cm wide are carried in a tall raceme in late spring

Common Name: Cusick’s camass
Family: Asparagaceae
Color flower: Blue in Spring
Hardiness: old H3-4 (intermediate between H3 and H4)
Color foliage: Green in Spring and Summer
Height: 0.5-1 metres
Habit: Bushy
Habit: Generally pest free
Pruning: Cut back faded flower spike
Spreadid: North-facing
Time to ultimate height: 2-5 years
Exposure: Grow in moist but well-drained, humus-rich, fertile soil. Intolerant of waterlogging and may need some protection from frosts in colder areas
Garden characteristics: Banks and Slopes, Cottage/Informal Garden, Flower borders and beds, Underplanting of Roses and Shrubs or Wildflower meadow

Briza maxima


Briza can be annual or perennial grasses forming dense tufts of linear leaves, with long-lasting, open panicles of nodding spikelets on slender branches; useful for dried flower arrangement

B. maxima is an erect annual grass to 60cm, forming a tuft of flat, linear leaves, with panicles of large, flat, ovate, pale yellow spikelets which dangle from slender branches

Common Name: greater quaking grass
Family: Poaceae
Color flower: Pale Yellow in Summer
Hardiness: old H4 (hardy)
Color foliage: Green in Spring and Summer
Height: 0.5-1 metres
Habit: Tufted
Habit: Generally pest free
Pruning: No pruning required
Spreadid: North-facing
Time to ultimate height: 1-2 years
Exposure: Easy to grow in most well-drained fertile soils in a sunny position
Garden characteristics: City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds, Cut Flowers or Low Maintenance

Cuphea hyssopifolia AGM


Cuphea can be annuals, perennials or evergreen shrubs, often with sticky hairs, opposite, simple leaves and tubular flowers with a showy calyx and small petals

C. hyssopifolia is a compact, bushy spreading evergreen shrub to 45cm in height, with small, lance-shaped dark green leaves and small clusters of light purple, pink or white flowers 1cm across

Common Name: false heather
Family: Lythraceae
Color flower: Pink, Purple or White in Autumn or Summer
Hardiness: H1c (heated greenhouse – warm temperate)
Color foliage: Dark Green in Autumn, Spring, Summer and Winter
Height: 0.1-0.5 metres
Habit: Spreading / Branched
Habit: Generally pest free
Pruning: Pruning group 10 in spring if needed
Spreadid: West-facing
Time to ultimate height: 5-10 years
Exposure: Best grown in well-drained soil in a sheltered site in sun or partial shade but shade from hot sun. Alternatively grow in a pot under glass or as a houseplant
Garden characteristics: City/Courtyard Gardens, Flower borders and beds, Wall-side Borders or Patio/Container Plants

Pelargonium ‘Spanish Angel’ (A) AGM


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

Angel pelargoniums are compact, bushy perennials with small, rounded leaves, sometimes scented, and clusters of small single flowers in shades of pink, red purple or white

‘Spanish Angel’ grows to 30cm with flowers to 3.5cm across, upper petals deep blackish-red with bright magenta margins, lower petals pale lilac with deep red centre and dark veining near margins

Common Name: pelargonium ‘Spanish Angel’
Family: Geraniaceae
Color flower: Black, Purple, Pale Purple and Dark Red in Summer
Hardiness: H1c (heated greenhouse – warm temperate)
Color foliage: Green in Autumn, Spring, Summer and Winter
Height: 0.1-0.5 metres
Habit: Bushy
Habit: Vine weevil, leafhoppers, caterpillars, thrips, fungus gnats and aphids can be troublesome. aphids are generally more problematic on over-wintered plants
Pruning: Deadhead regularly
Spreadid: North-facing
Time to ultimate height: 1-2 years
Exposure: Grow in fertile well-drained soil in full sun. Remove spent flowers. To overwinter, grow small plants in late summer from cuttings
Garden characteristics: City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds or Patio/Container Plants

Justicia rizzinii AGM


Justicia can be evergreen perennials or shrubs, with simple leaves and spikes or clusters of tubular, 2-lipped flowers often with conspicuous bracts

J. rizzinii is a bushy evergreen shrub to 60cm in height, with small, ovate, dark green leaves and small nodding clusters of tubular, yellow and scarlet flowers 2cm in length over a long period from late autumn to early spring

Common Name: Brazilian fuchsia
Family: Acanthaceae
Color flower: Red and Yellow in Winter
Hardiness: H1b (heated greenhouse – subtropical)
Color foliage: Dark Green in Autumn, Spring and Summer
Height: 0.5-1 metres
Habit: Bushy
Habit: May be attacked by glasshouse red spider mite and glasshouse whitefly
Pruning: Pruning group 9
Spreadid: North-facing
Time to ultimate height: 5-10 years
Exposure: Grow under glass or in a frost-free enviroment. Pinch out tips to promote compact plants. Best replaced when they become leggy
Garden characteristics: Mediterranean Climate Plants or Patio/Container Plants

Dubai Miracle Garden 2016

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Dubai Miracle garden 2015

 

Agave americana ‘Mediopicta’ (v) AGM


Agave can be perennial or monocarpic succulents, forming rosettes of usually rigid, fleshy, spiny-edged leaves, with funnel-shaped flowers in racemes or panicles often much taller than the rosettes

‘Mediopicta’ is a succulent evergreen perennial to 1.5m, forming rosettes of spiny-edged, grey-green leaves, each with a central, creamy-yellow stripe. Rarely flowers

Common Name: century plant ‘Mediopicta’
Family: Asparagaceae
Color flower: Pale Green in Summer
Hardiness: H2 (tender – cool or frost-free greenhouse)
Color foliage: Green, Grey/Silver and Yellow in Autumn, Spring, Summer and Winter
Height: 1-1.5 metres
Habit: Bushy
Habit: May be attacked by scale insects
Pruning: No pruning required
Spreadid: West-facing
Time to ultimate height: 10-20 years
Exposure: Grow under glass in a standard cactus compost, in bright, filtered light. When in growth water moderately and feed every two or three weeks with a balanced liquid feed. Keep almost dry in the winter
Garden characteristics: Architectural, City/Courtyard Gardens, Coastal, Gravel Garden or Mediterranean Climate Plants

Senna artemisioides AGM


Senna can be deciduous or evergreen shrubs , trees or perennials with pinnate leaves and terminal or axillary racemes, corymbs or panicles of usually yellow, bowl-shaped, 5-petalled flowers

S. artemisioides is an evergreen shrub to 2m in height, with downy grey-green leaves divided into linear leaflets, and axillary racemes of fragrant yellow or pale yellow flowers 1cm across, borne sporadically all year round

Common Name: wormwood senna
Family: Caesalpiniaceae
Color flower: Yellow in Autumn, Spring, Summer and Winter
Hardiness: H1c (heated greenhouse – warm temperate)
Color foliage: Green and Grey/Silver in Autumn, Spring, Summer and Winter
Height: 1.5-2.5 metres
Habit: Bushy
Habit: Generally pest free
Pruning: Pruning group 1
Spreadid: East-facing
Time to ultimate height: 10-20 years
Exposure: Grow under glass in a loam-based compost in full light with moderate humidity. Grow outdoors in moist but well-drained fertile in full sun in protected frost-free area
Garden characteristics: Low Maintenance or Patio/Container Plants