Haloragis to Hypoxis

Helenium autumnale 'Helena Mix'

Helenium 'Helena Mix'

Countless brilliant red and gold flowers on upright well-branched stems. Ideal as a cut flower, it has a long vase life. Thrives in a sunny location. First year flowering (18-20 weeks from sowing). Height 48in (120cm).

Helianthemum 'Mixed Colours'

Sun Rose 'Mixed Colours'

Helianthemum nummularium

Rock Rose, Yellow

Woody plant with a profusion of yellow flowers only opening in sunny weather. Blooms May-September. A flower of the sun. One of the Bach flower remedies. Legendary as a plant with powers over mind and spirit. Habitat: light grassland. Ht low...

Helianthemum nummularium 'Floribunda Mix'

Rock Rose 'Floribunda Mixed'

For summer colour in the rockery or for edging borders, the rock roses are difficult to beat. They bloom in shades of red, pink, yellow and white, and thrive in light, dry soils. Height 12in (30cm); spread 12in (30cm).

Heliopsis scabra/helianthoides 'Summer Sun'

Heliopsis 'Summer Sun'

Rarely seen nowadays, but well worth growing if you want fairly tall, easily manageable late summer border plants. Summer Sun gives masses of cheerful, semi-double golden yellow blooms. Flowering in their first year at around 60cm (24in) high,...

Helleborus niger

Christmas Rose, Lenten Rose, Hellebore

Flowers should be white with a pink flush. Nice foliage and blooms in the last of January (sometimes earlier), blooming well into March and April. Lovely at any time of the year with dark green foliage.

Hesperis matronalis

Sweet Rocket, Dames Violet

Small, beautifully fragrant, purple and white old-fashioned, cottage garden flowers are among the earliest to bloom in the spring. Mature plants stand 30-45cm (12-18 in) apart, up to 1m (3 ft) tall. Direct seed spring through fall when the...

Hosta elegans sieboldiana

Hosta elegans

Highly ornamental plant with very attractive bluish-green foliage that provides great colour and style to any perennial bed. Easy to grow, but hostas can take two years or more to fully develop the complete characteristics of the full grown...

Hyacinthoides non-scripta

Bluebell, English

Flowers blue violet April-June. Habitat: woodland on light soil. Liliaceae. This is the beloved bluebell that carpets old English woodlands, and is one of everyone's favourite late spring flowers!

Helenium autumnale 'Helena Red Shades'

Helenium 'Helena Red Shades'

Masses of vibrant, red flowers edged with yellow. Essential border addition for late summer colour. Tall, branched stems make superb cut flowers. Remove deadheads to prolong flowering. Divide mature plants in autumn. Height 4ft...

Helenium hoopesii

Helenium; Sneezeweed

Long flowering plant for the herbaceous boarder. Attractive grey-green, rosette foliage and golden-yellow flowers. Sometimes known as sneezeweed Ht 90cm

Helenium puberleum 'Autumn Lollipop'

Helenium 'Autumn Lollipop'

A curious plant for the front of the border, Autumn Lollipop boasts heads of rustic yellow and bronze with a small basal frill of ruffled petals. Highly ornate and also an extremely original cut flower. Height 24-36in (60-90cm).

Heliotropium peruviana

Heliotrope

Very sweet scented violet blue flowers. Flowers turn with the sun. Homoeopathic tincture for clergymans sore throat.

Helleborus species & hybrids. 'Winter Flowering Mixed'

Hellebore 'Winter Flowering Mix'

This mixture of species and hybrids boasts a range of flower and leaf types, even appearing through snow. Flower shades can vary from lime-green through white, appleblossom pink to dark maroon, either spotted, speckled or plain. Foliage is mid...

Hemerocallis cultivars 'Summer Trumpets'

Hemerocallis 'Summer Trumpets'

These exotic looking perennials are easy to grow from seed. The large, richly coloured and beautifully marked blooms are freely produced anew through the summer to provide a stunning display. Height 36in (90cm); spread 24in (60cm)

Herniara glabra

Rupturewort

Dwarf growing, mat forming habit, reputed to help relieve kidney and bladder pains. Ht 10cm

Hesperis matronalis 'White'

Dames Violet 'White', Sweet Rocket

Fragrant white panicles of 4-petalled flowers waft a sweet fragrance in the air. Lovely in woodland gardens and for bouquets. Ht. 24-36 inches. Part shade. Biennial, Zones 3-8.

Heuchera micrantha 'Palace Purple'

Heuchera Palace Purple

Heuchera grows to a perfect dome of deep crimson-purple maple-shaped leaves. Narrow stalks of small creamy white flowers will bloom the second year after seeding.

Prefers well-drained moist soil and full sun but will tolerate partial...

Heuchera sanguinea 'Coral Bells'

Heuchera Coral Bells

An attractive display of small, delicate red bell flowers atop long stems.

Prefers a rich moisture retaining soil with good drainage.

Heuchera sanguinea 'Emperor's New Clothes'

Heuchera 'Emperor's New Clothes'

Richly coloured and prominently veined foliage plants, stunning in patio containers or mixed borders, with differing shades and shapes of leaf. They also make exceptionally attractive ground cover. Dainty spikes produce small tubular flowers...