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Westringia fruticosa 'Blue Gem' (Australian rosemary 'Blue Gem')
1 hour care
per year
per year
2m
Max height
Max height
1.8m
Max spread
Max spread
5-10 years
To maturity
To maturity
Plant details
Botanical name
Westringia fruticosa 'Blue Gem'
Other names
Australian rosemary 'Blue Gem', Coast rosemary 'Blue Gem', Victorian rosemary 'Blue Gem', Westringia rosmariniformis 'Blue Gem', Westringia fruticosa 'WES03'
Genus
Westringia Westringia
Variety or Cultivar
'Blue Gem' _ 'Blue Gem' is a borderline hardy, rounded, evergreen shrub with upright stems bearing small, linear to narrowly lance-shaped, dark green leaves and cymes of tubular, speckled, lilac to purple-blue flowers in late spring and early summer.
Westringia fruticosa 'Blue Gem' is: Evergreen
Fragrance
Foliage is aromatic.
Habit
Bushy, Rounded
Flower
Purple in Spring; Purple in Summer
Foliage
Dark-green in All seasons
How to care
Watch out for
General care
Pruning
Pruning Group 9. May need restrictive pruning if grown under glass. If grown as a hedge, prune in late spring and again in late summer.
Propagation
Sow seed at 13-18 degrees Celsius.
Propagation methods
Seed, Semi-ripe cuttings, Softwood cuttings
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Where to grow
Westringia fruticosa 'Blue Gem' (Australian rosemary 'Blue Gem') will reach a height of 2m and a spread of 1.8m after 5-10 years.
Suggested uses
Beds and borders, Coastal, Containers, Cottage/Informal, Greenhouse, Hedging/Screens, Low Maintenance, Mediterranean, Wallside and trellises
Cultivation
Under glass, grow in loam-based compost with added sharp sand and leaf mould in full light. In growth, water moderately and feed monthly; water sparingly in winter. Outdoors in frost-free areas, plant in moderately fertile, moist but well-drained soil in full sun. In frost-prone areas, can be grown in a container and overwintered indoors.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Indoor heated (H1), Tender in frost (H3)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Westringia fruticosa 'Blue Gem'
Other names
Australian rosemary 'Blue Gem', Coast rosemary 'Blue Gem', Victorian rosemary 'Blue Gem', Westringia rosmariniformis 'Blue Gem', Westringia fruticosa 'WES03'
Genus
Westringia Westringia
Variety or Cultivar
'Blue Gem' _ 'Blue Gem' is a borderline hardy, rounded, evergreen shrub with upright stems bearing small, linear to narrowly lance-shaped, dark green leaves and cymes of tubular, speckled, lilac to purple-blue flowers in late spring and early summer.
Native to
Garden origin
Foliage
Evergreen
Fragrance
Foliage is aromatic.
Habit
Bushy, Rounded
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Colour
Flower
Purple in Spring; Purple in Summer
Foliage
Dark-green in All seasons
General care
Pruning
Pruning Group 9. May need restrictive pruning if grown under glass. If grown as a hedge, prune in late spring and again in late summer.
Propagation
Sow seed at 13-18 degrees Celsius.
Propagation methods
Seed, Semi-ripe cuttings, Softwood cuttings
Monthly care advice
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Where to grow
Westringia fruticosa 'Blue Gem' (Australian rosemary 'Blue Gem') will reach a height of 2m and a spread of 1.8m after 5-10 years.
Suggested uses
Beds and borders, Coastal, Containers, Cottage/Informal, Greenhouse, Hedging/Screens, Low Maintenance, Mediterranean, Wallside and trellises
Cultivation
Under glass, grow in loam-based compost with added sharp sand and leaf mould in full light. In growth, water moderately and feed monthly; water sparingly in winter. Outdoors in frost-free areas, plant in moderately fertile, moist but well-drained soil in full sun. In frost-prone areas, can be grown in a container and overwintered indoors.
Soil type
Chalky, Loamy, Sandy
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Indoor heated (H1), Tender in frost (H3)
USDA zones
Zone 11, Zone 10, Zone 9
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Loamy, Sandy | Tell us... |
| Soil drainage: | Moist but well-drained, Well-drained | Tell us... |
| Soil pH: | Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, West | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Indoor heated (H1), Tender in frost (H3) | Tell us... |
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