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Isotoma axillaris 'Blue Star'
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Rock isotomeAnnualFamily: Campanulaceae
- Height: 30cmSpread: 30cm
- Half hardy
Flower colour:
Blue
Foliage colour:
Green
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Position
Sun Exposure:
Full sun
Aspect:
South facing, west facing
Soil
Well Drained / Light / Sandy
A terrific plant with multibranched stems, Isotoma 'Blue Star' forms a great mound of lilac-coloured, star-like flowers. It's best shown off in a tall, narrow, chimney-pot type container, lifting the mass of growth off the ground where it balloons out. This can be used to fill border gaps in summer, adding height, or planted at strategic points on a terrace.
Grow Isotoma 'Blue Star' in loam-based compost or moist but well-drained soil. Pinch out the young growth to make it even bushier, and give it a fortnightly liquid feed in summer. Deadhead spent blooms to prolong flowering.
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Plant calendar
JanFebMarAprMayJunJulAugSepOctNovDecSowyesPlantyes**yesFlowersyesyesyesyesyes
Isotoma ‘Blue star’ and wildlife
Isotoma ‘Blue star’ has no particular known value to wildlife in the UK.
Is Isotoma ‘Blue star’ poisonous?
Isotoma ‘Blue star’ can be toxic.
Toxic to:
Is known to attract Cats
Cats
Is known to attract Dogs
Dogs
Is known to attract Horses
Horses
Is known to attract Livestock
Livestock
Is known to attract People
People
No reported toxicity to:
Is not known to attract Birds
Birds
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