Rosemary ‘Blue Lagoon’ is a semi-prostrate variety that may be quite variable in size depending upon conditions. Under good conditions it may reach up to 1 meter in height and spread 2 meters wide, however sometimes growth is restricted to half this size. The leaves are dark green and needle like, supporting its success in semi-arid and hot conditions. The flowers are a rich mid blue and they cover the plant, forming a carpet bloom, in early spring to summer.
This rosemary prefers part to full sun and will do well with good soil drainage, and occasional deep watering. The best climate regions are cool temperate to sub-tropical, with this variety being well adapted for hot, dry conditions. As a semi- prostrate rosemary, ‘Blue Lagoon’ will display well sprawling informally over embankments or walls, in rockeries and in containers.
Rosemary ‘Blue Lagoon’ is highly ornamental and provides an impressive floral display. However, it can still be used for culinary purposes.
Rosemary is an evergreen, woody shrub native to the Mediterranean region of Europe. It belongs to the Lamiaceae or mint family, with the botanical name Rosmarinus officinalis. This name is from the Latin words ‘ros’ meaning dew and ‘marinus’ from the word for sea. Together they refer to the ‘dew of the sea’, because these plants grow in near coastal areas. There are many varieties, distinguished by being upright or prostrate, ranging in size from low ground covers to large shrubs reaching 1.5-2 meters high. The leaves are small and often needle like, ranging from green to grey-green with a pine like aroma produced by the essential oils in the foliage. The small flowers are bee attractants and range from pale pink, purple, white, and include a range of distinctive blues. They usually bloom from early spring to summer, sometimes with a new flush in autumn.
Rosemary is a hardy plant that needs little attention once established. Soil should be well drained and slightly alkaline, the aspect should have full sun or partial shade and plants require occasional watering. Rosemary is tolerant of dry periods, coastal conditions, poor soil, hot and windy aspects and even has moderate frost tolerance. Humid conditions, wet soil or excessive frost will cause problems for the roots and foliage. Plants may be pruned to shape, with larger varieties being suitable for hedging. Propagation from cuttings is easy for most home gardeners.
Most people know rosemary as a culinary herb, especially in Italian cuisine. However, this herb also has a history of medicinal use, including being reputed to improve memory. Of course, many gardeners grow Rosemary ornamentally or just for the lovely fragrance it imparts to the garden.
For more information on history, growth conditions, culinary and medicinal use please see our Common Rosemary listing and other varieties such as Tuscan Blue
All information provided on this website is for informational purposes only. Please seek professional advice before commencing any treatment.
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