- Botanical name: Isotoma axillaris 'Blue Star'
- Common name: Rock isotome
- Family: Campanulaceae
- Plant Type: Annual
Blue
Green
- Key features:
- Flowers
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.
How to grow Isotoma 'Blue Star'
-
Plant size
30cm height
30cm spread
-
Aspect
South facing, west facing
- Sun exposure: Full sun
- Hardiness: Half hardy
- Soil type: Well drained / light / sandy
Plant calendar
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sow | ||||||||||||
| Sow |
J
Do not Sow in January |
F
Do not Sow in February |
M
Do Sow in March |
A
Do not Sow in April |
M
Do not Sow in May |
J
Do not Sow in June |
J
Do not Sow in July |
A
Do not Sow in August |
S
Do not Sow in September |
O
Do not Sow in October |
N
Do not Sow in November |
D
Do not Sow in December |
| Plant | ||||||||||||
| Plant |
J
Do not Plant in January |
F
Do not Plant in February |
M
Do not Plant in March |
A
Do not Plant in April |
M
Do Plant in May |
J
Do Plant in June |
J
Do not Plant in July |
A
Do not Plant in August |
S
Do not Plant in September |
O
Do not Plant in October |
N
Do not Plant in November |
D
Do not Plant in December |
| Flowers | ||||||||||||
| Flowers |
J
Plant does not flower in January |
F
Plant does not flower in February |
M
Plant does not flower in March |
A
Plant does not flower in April |
M
Plant does not flower in May |
J
Plant does flower in June |
J
Plant does flower in July |
A
Plant does flower in August |
S
Plant does flower in September |
O
Plant does flower in October |
N
Plant does not flower in November |
D
Plant does not flower in December |
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' has no toxic effects reported.
No reported toxicity to Birds
No reported toxicity to Cats
No reported toxicity to Dogs
No reported toxicity to Horses
No reported toxicity to Livestock
No reported toxicity to People
