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.

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Echium candicans

Bushy biennial with grey hairy lance-shaped leaves. Dense spike-like panicles of white, light blue or dark blue in Spring and Summer. Height 200cm.

Geranium prat. Mrs Kendall Clark

Its delicate violet blue flowers have lacy white veining, making a lovely show. Flowering in mid summer it is a treasured garden rambler. Height 80 cm. Spread 60 cm

Geranium pratense Midnight Reiter

The true blue flowers combine well with its dark purple foliage in summer. Good for cottage style garden, container or border. Disease resistant plant. Height 30 cm. Spread 25 cm.

Geranium Rozanne

The violet-blue flowers have white centres and appear from late spring to November. Rewarding plant, rich flowering and a strong grower. Height 45 cm. Spread 50 cm.

Nepeta subsessilis

Large blue flowers from June-August. Sunny position, free-draining soil. Height 60 cm.

Nepeta Walkers Low

Aromatic grey-green foliage. Dark lavender-blue flowers come in flushes from early Summer. Will continue to Autumn once deadheaded. Height 60cm. Spread 80cm. Drought tolerant.

Polemonium cae Bambino Blue

Height 40 cm. Hardy herbaceous perennial. Blue flowers June-July. Sunny position, any free-draining soil.

Polemonium Stairway to Heaven

Variegated green and cream leaves, flushed with pink in Spring. Violet-blue flowers in Spring and early Summer. Height 35cm.

Salvia nemerosa Caradonna

Violet-blue flower spikes from June to October. Grey-green scented foliage. A magnet for bees and butterflies. Height 30cm. Spread 45cm.

Stokesia Mels Blue

Masses of stunning lilac blue flowers nestled in bright green foliage from late Summer through to Autumn. Attracts bees & butterflies. Plant in full sun or part shade. Height 40 cm. Spread 30 cm.

Aquilegia vulgaris ‘Winky Blue-White Double’

Aquilegia is a genus of clump-forming, short-lived perennials, which are commonly known as columbines. The different varieties offer an array of colour that can be used in your garden or patio.