Category Archives: Annual/Biennial

Rhinanthus minor


Rhinanthus are annuals with opposite, toothed leaves and terminal, leafy spikes of tubular, 2-lipped flowers in summer

R. minor is an annual to 30cm with simple or branched stems bearing narrowly lance-shaped leaves and tubular, 2-lipped yellow flowers with brown or purple teeth, within a bladdery, inflated calyx

Common Name: yellow rattle
Family: Orobanchaceae
Color flower: Yellow in Summer
Hardiness: H5 (hardy – cold winter)
Color foliage: Green in Summer
Height: 0.1-0.5 metres
Habit: Columnar/Upright
Habit: Generally pest free
Pruning: No pruning required
Spreadid: South-facing
Time to ultimate height: 1-2 years
Exposure: Grow as semi-parasitic plant amongst grasses in meadows or prairies
Garden characteristics: Low Maintenance, Wildflower meadow or Prairie Planting

Helianthus annuus ‘Pastiche’


Helianthus can be tall, erect annuals, tuberous or rhizomatous perennials, with coarse simple leaves and large daisy-like flower-heads

‘Pastiche’ is a branching annual with single, dark-centred flowers 8-15cm across, in shades of light and deep yellow, orange-red and mahogany

Common Name: sunflower ‘Pastiche’
Family: Asteraceae
Color flower: Brown, Orange, Red and Yellow in Summer
Hardiness: old H4 (hardy)
Color foliage: Green in Spring and Summer
Height: 1-1.5 metres
Habit: Bushy
Habit: Can get slugs and snails
Pruning: Cut back after flowering
Spreadid: West-facing
Time to ultimate height: 1-2 years
Exposure: Grow in moderately fertile, neutral to alkaline, humus-rich, moist but well-drained soil in full sun
Garden characteristics: Cottage/Informal Garden, Flower borders and beds, Cut Flowers or Wildflower meadow

Primula ‘Rainbow Blue Shades’ (Rainbow Series) (Pr/Poly) AGM


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

‘Rainbow Blue Shades’ is a compact polyanthus to 25cm, with large, slightly fragrant flowers in shades of blue, with a large yellow eye

Common Name: polyanthus ‘Rainbow Blue Shades’
Family: Primulaceae
Color flower: Blue and Yellow in Spring and Winter
Hardiness: H5 (hardy – cold winter)
Color foliage: Green in Autumn, Spring, Summer and Winter
Height: 0.1-0.5 metres
Habit: Clump-forming
Habit: May be attacked by aphids, glasshouse red spider mite, leafhoppers, vine weevil and slugs
Pruning: Cut back after flowering
Spreadid: North-facing
Time to ultimate height: 1-2 years
Exposure: Grow in fertile, humus-rich, moist but well-drained soil in full sun or partial shade, do not allow to dry out in hot weather
Garden characteristics: City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds, Garden Edging, Patio/Container Plants or Underplanting of Roses and Shrubs

Calibrachoa Million Bells Series


Calibrachoa are tender woody-based perennials usually grown as annuals, mostly trailing in habit, with simple leaves and petunia-like, trumpet-shaped flowers over a long period

Million Bells Series are free-flowering, compact trailing annuals to 15cm in height, with yellow-throated, pink or blue flowers 2-3cm across, in summer and autumn

Common Name: petunia Million Bells Series
Family: Solanaceae
Color flower: Blue and Pink in Autumn and Summer
Hardiness: old H1+3 (required heated glass; may be grown outside in summer)
Color foliage: Green in Autumn, Spring and Summer
Height: 0.1-0.5 metres
Habit: Trailing
Habit: Generally pest free
Pruning: Deadhead regularly
Spreadid: North-facing
Time to ultimate height: 1-2 years
Exposure: A sunny, sheltered site is essential for the best flowers. Ideal for hanging baskets but can also be grown in any well-drained soil. The photo shows Million Bells Trailing Pink (‘Sunbelkupi’)
Garden characteristics: City/Courtyard Gardens, Cottage/Informal Garden, Flower borders and beds, Garden Edging or Patio/Container Plants

Cleretum bellidiforme


C. bellidiformis is a low-growing succulent annual with grey-green papillose leaves and daisy-like flowers 2.5cm across in shades of pink, purple, cream, orange and yellow

Common Name: Livingstone daisy
Family: Aizoaceae
Color flower: Cream, Orange, Pink, Purple or Yellow in Summer
Hardiness: old H3 (may need winter protection)
Color foliage: Green and Grey/Silver in Autumn, Spring and Summer
Height: Up to 10 cm
Habit: Mat forming
Habit: May be attacked by aphids, slugs and snails
Pruning: Cut back after flowering
Spreadid: North-facing
Time to ultimate height: 1-2 years
Exposure: Grow in well-drained, low fertility soil in full sun
Garden characteristics: Banks and Slopes, Gravel Garden, City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds, Garden Edging, Mediterranean Climate Plants or Patio/Container Plants

Antirrhinum majus ‘Bells Yellow’ (Bells Series)


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

‘Bells Yellow’ is a compact annual to 30cm, with dense racemes of open-faced, bell-shaped, yellowish-green flowers from early summer to autumn

Common Name: snapdragon ‘Bells Yellow’
Family: Plantaginaceae
Color flower: Green and Yellow in Autumn and Summer
Hardiness: old H3 (may need winter protection)
Color foliage: Green in Autumn, Spring and Summer
Height: 0.1-0.5 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, Garden Edging or Patio/Container Plants

Tropaeolum Whirlybird Series AGM


Tropaeolum can be annuals or perennials, bushy, trailing or climbing by twining stems, with simple or palmately lobed leaves and showy funnel-shaped flowers with five long-clawed petals and often a spur

Whirlybird Series are spreading annuals with rounded light green leaves and single or semi-double flowers to 5cm across, in shades of yellow, orange, red and mahogany

Common Name: nasturtium Whirlybird Series
Family: Tropaeolaceae
Color flower: Orange, Red or Yellow in Autumn or Summer
Hardiness: H3 (half hardy – unheated greenhouse/mild winter)
Color foliage: Pale Green in Autumn, Spring and Summer
Height: 0.1-0.5 metres
Habit: Bushy
Habit: Caterpillars, blackfly, flea beetles and slugs may be troublesome
Pruning: Cut back after flowering
Spreadid: North-facing
Time to ultimate height: 1-2 years
Exposure: Grow in poor, moist but well-drained soil in full sun
Garden characteristics: Banks and Slopes, City/Courtyard Gardens, Coastal, Cottage/Informal Garden, Flower borders and beds, Garden Edging or Patio/Container Plants

Coriandrum sativum


Coriandrum are upright annuals with pinnately divided, aromatic foliage and compound umbels of small white or purplish flowers in summer and early autumn

C. sativum is an annual with aromatic, pinnate to 3-pinnate leaves, the upper ones with linear segments, and compound umbels of small white or purplish flowers, followed by aromatic fruits used in cooking

Common Name: coriander
Family: Apiaceae
Color flower: White and Pale Purple in Summer
Hardiness: old H4 (hardy)
Color foliage: Green in Autumn, Spring and Summer
Height: 0.1-0.5 metres
Habit: Columnar/Upright
Habit: Can get aphids
Pruning: No pruning required
Spreadid: North-facing
Time to ultimate height: 1-2 years
Exposure: Grow in fertile, well drained soil in full sun where seeds are to be gathered. For leaf production partial shade is more productive. Leaves can be picked as required and seeds gathered when ripe
Garden characteristics: Cottage/Informal Garden or Flower borders and beds