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 13 results

Eryngium Big Blue

Unusual spikey blue-green foliage. Spectacular electric blue flowers. Height 60cm.

Eryngium bourgatii

The silver veined dark green foliage is very impressive when it reappears. The stiff steely blue flowerstems and flowers add to its magic in summer. Height 60 cm. Spread 40 cm.

Geranium himalayense Gravetye

An excellent groundcover plant. The large violet blue flowers have a white centre and a touch of red. Attractive foliage with good autumn colour. Height 30 cm. Spread 60 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.

Lupinus Gallery Blue

A hardy and tough garden plant. A very good and rewarding addition to any garden. Blue flowerspikes all through the summer. Height 60 cm. Spread 40 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.

Nepeta x. faassenii

Bushy, clump-forming. Useful for edging. Loose spikes of soft lavender-blue flowers in July-Aug. Height 45 cm. Position in full sunlight and in well drained soil.

Polemonium cae Bambino Blue

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

Salvia nemerosa Ostfriesland

Height 50cm. Neat, clump-forming. Violet-blue flowers in Summer in branching racemes.

Salvia x sylv Mainacht

Very dark blue - nearly black flower spikes from May-August. Height 40 cm. Sunny position, free-draining soil.

Scabiosa Blue Butterfly

The lavender-blue flowers are 5cm across and resemble a pincushion. They will be on show from June till when the first frosts occur. Attracts butterflies. Height 40cm. Spread 30 cm.