flower banner

Rock Isotome

A small herb with feathered foliage and bright star-shaped, purple flowers.  A beautiful, plant for the cottage garden and perennial border, flowering from spring through to autumn – flowering may pause during the hottest summer months..

 

Found growing naturally among granite outcrops in our region, where it has good drainage and frost protection. In the home garden plant in rockeries or slightly raised garden beds. It will be severely knocked back by frosts in winter but if you are lucky, low buds may survive and resprout when the weather warms. If frosts are severe on your block, treat as an annual and plant out after frosts pass in spring. Caution when weeding around this one as broken stems exude a white sap that causes skin and eye irritation.

 

Scientific name
Isotoma axillaris
Family
Campanulaceae

Characteristics


Lifeform
Herbs & Ground covers
Height
0.4
Width
0.4
Growth rate
Medium
Evergreen
Perennial
Yes

Growing Conditions


Full Sun
Yes
Semishade
Yes
Shade
Cold
0
Drought tolerance
Good
Waterlogging tolerance
Average
Compaction
Average
Wind
Average
pH
complete range

Uses


Ground cover
Screen
Shade
Container
Yes
Hedge
Windbreak
Grassy Woodland
Yes
Perennial border
Yes
Climber
Native lawn
Shrub Mass
Wetland

Biodiversity


Insect pollinator feeding
Yes
Caterpillar feeding
Bird feeding
Bird refuge
Lizard feeding
Lizard refuge
Frog refuge
Mammal feeding
Pollinators
Native Bee, Moth
Larvae
Birds
Mammals

Flowering


Jan
Feb
Mar
Yes
Apr
Yes
May
Yes
Jun
Jul
Aug
Sep
Yes
Oct
Yes
Nov
Yes
Dec
Yes