Herbaceous plants (in botanical use frequently simply herbs) are plants that have no persistent woody stem above ground. The term is mainly applied to perennials, but in botany it may also refer to annuals or biennials, and include both forbs and graminoids.

Annual herbaceous plants die completely at the end of the growing season or when they have flowered and fruited, and they then grow again from seed.

Herbaceous perennial and biennial plants may have stems that die at the end of the growing season, but parts of the plant survive under or close to the ground from season to season.

Showing 1–12 of 75 results

Acanthus spinosus

With its glossy evergreen leaves this plant is an asset to any herbaceous border. It has very large flower-spikes in Summer, which last long. Height 120 cm. Spread 60 cm

Agapanthus Northern Star

Forms a large clump of broad, strap-like, glossy green leaves, slightly flushed with purple at the base. Sturdy erect stems bear large umbels of multicolored, trumpet-shaped flowers in late Summer. Each petal is a violet-blue striped with purple at the centre. Garden plant for flowerbed in moist but well-drained soil in full sun.

Agastache hyb. Black Adder

Tiny violet-blue flowers arranged on a tall black spire resembling a bottlebrush. Long lasting flowers from July to October. Height 75cm. Spread 40cm.

Alcea r. Spring Celebrities Purple

Compact strain of the old fashioned favourite. Bushy plants and sturdy stems with a showy display of double purple flowers from late Spring though the Summer months. Good cut flower. Attracts bees & butterflies. Height 80cm. Spread 30cm.

Allium sphaerocephalon

Small egg shaped heads of rich blackcurrant coloured flowers in July and August - much later than other Alliums. Height 90cm.

Aster Little Carlow

Masses of lilac blue daisy like flowers with yellow centres bloom in late Summer and Autumn. A RHS Garden of Merit plant. Grow in full sun or part shade in fertile free drained soil. Cut back in Winter. Height 80cm.

Astrantia major Florence

Pin-cushion like flowers of an unusual lavender-pink from Summer into Autumn. Attracts butterflies. Plant in moist soil in a shady position. Height 90cm.

Buddleja Buzz Lavender

Dwarf Butterfly Bush. Violet-lilac flower plumes from June till September. Height 60 cm. Plant in a sunny position.

Buddleja Buzz Magenta

Dwarf Butterfly Bush. Purple magenta flower plumes from June till September. Height 60 cm. Plant in a sunny position.

Calla Picasso ®

Tall upright purple flowers with white rims from July to September. Leaves are flecked with white. Dwarf variety suitable for planters and patio. Height 40cm. Protect from frost.

Campanula glom. Superba

Dense heads of purple bell-shaped flowers appear in Summer. Tough and easy to grow garden plant, well suited to a cottage garden or herbaceous border. Height 45 cm. Spread 60 cm.

Cirsium riv. ‘Trevor’s Blue Wonder’

Beautiful Ornamental Thistle. Upright clump forming perennial with prickly leaves resembling the foliage of a thistle. Tall, erect stems bear spectacular deep purple thistle-like flowers in mid to late Summer. A magnet for bees and butterflies! Garden plant for flowerbed in moist well-drained or damp soil in full sun. Approximate height and spread- 150cm x 60cm.