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. Plant into well-prepared ground, firm the soil around the roots and water deeply to settle it in. For a screen, space plants about 60 cm apart.
Watering & feeding
Jervis Gem Coastal Rosemary is very drought tolerant once established, so once its roots are down it needs little supplementary water. As an Australian native, feed it only with a low-phosphorus native fertiliser. In its first year, water deeply once or twice a week to settle the roots in, then taper off as it establishes.
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. Overall 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 a cohesive, low-care bed, pair Jervis Gem Coastal Rosemary with other plants that enjoy the same very drought tolerant and warm-temperate climate. Repeat it through a border to tie the planting together and give a sense of rhythm. 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. Stock isn't live yet — register your interest using the panel above and we'll email you the moment we have it ready.