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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Campanula Ringsabell Indigo Blue

A tidy mound of slender stems with large drooping purple-blue bells in early to mid Summer. Very floriferous. Prefers a sun or partial shade position. Height 15cm. Spread 30cm.

Corydalis Porcelain Blue

Garden plant for flowerbed in fertile humus-rich soil in partial shade.Vibrant aqua blue flowers in racemes dangle elegantly above lacy blue-green slightly bronze fern-like foliage. Blooms in Spring then again in late Summer.  Ideal in a damp woodland setting. Height 40 cm, spread 50 cm

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 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.

Iris sibirica Ego

The large rich-blue flowers appear From May to July and will grace any display. Good as cut flower too. Height 70 cm. Spread 30 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

Meconopsis betonicifolia

With its big strikingly blue flowers which resemble those of Poppies, this is an unusual garden plant. Needs cool, sheltered position and rich soil. Height 100 cm. Spread 45cm.

Nemesia Karoo Dark Blue

Masses of intense violet blue flowers with a tiny yellow eye from May to October. Fantastic garden plant - ideal in baskets/pots/borders or used as fringe planting. Full sun or part shade. Height 25cm. Spread 30cm.

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.

Anchusa azurea ‘Dropmore’

'Italian Bugloss' is a biennial or short-lived perennial however, do not let this put you off. It is still a magnificent plant with stunning flowers and structural integrity.