Description
Salvia rosmarinus ‘Severn Seas’ or Rosemary ‘Seven Seas’ is a spreading, evergreen rosemary cultivar known for its arching branches, aromatic foliage, and bright blue, two‑lipped flowers. This combination of structure, scent, and colour makes it ideal for herb gardens, Mediterranean schemes, wildlife planting, and sensory landscapes.
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: Bright blue, two‑lipped flowers.
Foliage: Arching branches, aromatic, linear, dark green leaves.
Flowering period: Spring and summer, sometimes again in autumn.
Height: Up-to 100cm at maturity.
Spread: Up-to 150cm 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, Mediterranean schemes, herb gardens, softening walls, cascading over raised beds, or forming low, and Pollinator/Wildlife-friendly planting schemes.
Commercial Notes:
SALVIA rosmarinus ‘Severn Seas’ 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.
