Description
Salvia rosmarinus ‘Blue Lagoon’ or Rosemary ‘Blue Lagoon’ is a compact, free‑flowering rosemary cultivar known for its vivid blue blooms and dense, tidy growth habit. Its intense flower colour stands out more strongly than many traditional rosemary varieties. Foliage forms a compact, upright to gently arching shrub with aromatic, evergreen foliage. When brushed, the fine needle‑like leaves release a clean, resinous scent.
Key Features:
Propagation method: Vegetative soft-wood cuttings.
Substrate: Jiffy peat-free propagation Mix.
Plug Size: 4.5cm.
Production system: Grown without artificial light or heating for hardened plants.
Flowers: Vivid blue, forming dense clusters along the stems.
Foliage: Aromatic, evergreen, fine needle‑like leaves; compact and well‑branched habit.
Flowering period: Late spring to early summer, with occasional repeat flushes in warm spells.
Height: Up-to 50cm at maturity.
Spread: Up-to 80cm at maturity.
Hardiness: Hardy in most UK regions.
Pollinator value: Highly attractive to bees and beneficial insects.
Sensory value: Ideal for SEND gardens and therapeutic planting schemes.
Ecological impact: Grown in peat-free substrate with no artificial inputs, pollinator and wildlife-friendly.
Awards: Included in RHS lists of pollinator-friendly plants; selected for ecological value.
Planting & Care:
Prefers full sun and free‑draining soil (sand, grit, chalk or loam).
Drought-tolerant once established.
Prune lightly after flowering to maintain shape and encourage bushiness.
Ideal for Containers, Gravel gardens, Mediterranean gardens, and Pollinator/Wildlife-friendly planting schemes.
Commercial Notes:
SALVIA rosmarinus ‘Blue Lagoon’ are supplied as strong, well-rooted, hardy plug plants ready for potting into pots up-to 2lt formats.
Ideal for nursery, and wholesale formats and performs well in peat-free and organic programs.
Suitable for wildlife-friendly, sensory, and sustainable product ranges.
Plant Profile from Royal Horticultural Society:
Rosemary plants are not subject to VAT.





