A compact low-growing coastal rosemary with fine foliage and abundant mauve-blue flowers over a long season. Hardy and tidy for low hedging and coastal borders.
At a glance
- Plant type: Shrub
- Mature size: 60 cm H × 1 m W
- Aspect: full sun
- Water: very drought tolerant once established
- Frost: hardy
- Maintenance: low maintenance
- Origin: Australian native
About Jervis Gem Coastal Rosemary
Botanically, Westringia 'Jervis Gem' is a shrub in the Lamiaceae family, native to Australia. It reaches around 60 cm tall and 1 m wide at maturity, with evergreen and silver-grey foliage. Purple flowers appear for much of the year.
Where to grow Jervis Gem Coastal Rosemary
Jervis Gem Coastal Rosemary suits warm-temperate, Mediterranean and subtropical climates and grows best in full sun. It is frost hardy and shrugs off cold winters. It also tolerates salt-laden coastal winds, is a genuinely water-wise choice and is usually left alone by rabbits.
Soil & planting
Jervis Gem Coastal Rosemary does best in free-draining and sandy soil. Dig in plenty of compost before planting, water in well, and mulch to keep roots cool. For a screen, space plants about 60 cm apart.
Watering & feeding
Jervis Gem Coastal Rosemary handles dry conditions well once established. As an Australian native, feed it only with a low-phosphorus native fertiliser. During the first growing season, water deeply whenever the upper soil begins to dry, then reduce the frequency as roots establish.
Pruning & care
Prune Jervis Gem Coastal Rosemary after flowering to keep it compact and encourage the next flush of blooms. It clips well, so trim two or three times a year for a formal finish. Once established, it is low maintenance.
Using Jervis Gem Coastal Rosemary in the garden
Jervis Gem Coastal Rosemary earns its place for a fast screen or informal hedge, a feature or specimen planting and pots and courtyard containers. It is equally at home in the ground or a large pot on a balcony or courtyard.
Companion planting & design
For easier irrigation and care, group Jervis Gem Coastal Rosemary with species that also favour dry conditions once established and warm-temperate climate. Leave enough room for the mature spread so neighbouring plants are not crowded out. It combines naturally with other Australian natives in a habitat or water-wise garden.
Buying Jervis Gem Coastal Rosemary
Plant Sale lists Jervis Gem Coastal Rosemary as tube stock, potted plants and advanced specimens. Catalogue forms are planning guidance until the Plant Sale team confirms live availability.
