Whorl heath
Erica verticillata
An erect, slender evergreen Cape heath (Erica verticillata) carrying tubular, soft-pink flowers in neat whorls up its wiry stems above fine, needle-like leaves - one of horticulture's most celebrated conservation rescues. Native to the Cape Flats sand fynbos of the Cape Provinces, South Africa (POWO, Kew), it was declared extinct in the wild after Cape Town's growth swallowed its lowland habitat by the mid-20th century; it survived only as a handful of plants in botanic gardens (Kirstenbosch, Kew, Vienna) and is now propagated and reintroduced from those garden survivors. In its fynbos home the long tubular flowers are sunbird-pollinated. It is frost-tender (RHS H3) and demands acidic, sandy, sharply drained soil that never dries out completely, full sun, and good air movement - a Cape heath that likes steadier moisture than the proteas but the same sharp drainage. Grown ornamentally; the plant is inedible.
Climate fit: narrow (29/100)
Structure
Border
Pollinator
Light
Full sun
Water
Moderate water
Mature size
3-6 ft tall · 24" apart
Hardy in zones
9a-10b
frosty to mild winters
AHS heat range
1-9
Plant range authored in AHS heat-zone terms.
Native in Illinois
No
In its native Cape Flats fynbos the long tubular flowers are bird-pollinated - sunbirds probe the nectar-rich tubes and carry pollen from plant to plant - so this is not a garden breeding-compatibility question.
Cold hardiness
These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Won't grow here
Zone 7a
Plotwright
0°F to 5°F
Won't grow here
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
✕
Out of range today and still out of range in 2050.
Heat tolerance
Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...
Where this plant fits
Suitable across 4 ecoregions - 3 climate-resilient through 2070 · 1 newly possible by 2070. Best matches first.
Plant this, not that
Better fit for this place
For Chicago, IL, these are replacement suggestions: similar plants with a stronger hardiness fit now and/or in 2050.
Better fit now and in 2050
Now: well-suited
2050: well-suited
Better fit now and in 2050
Now: well-suited
2050: well-suited
Better fit now and in 2050
Now: well-suited
2050: well-suited
Better fit now and in 2050
Now: well-suited
2050: well-suited
Similar plants
Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Educator packet
Plant packet
Whorl heath educator packet
An erect, slender evergreen Cape heath (Erica verticillata) carrying tubular, soft-pink flowers in neat whorls up its wiry stems above fine, needle-like leaves - one of horticulture's most celebrated conservation rescues. Native to the Cape Flats sand fynbos of the Cape Provinces, South Africa (POWO, Kew), it was declared extinct in the wild after Cape Town's growth swallowed its lowland habitat by the mid-20th century; it survived only as a handful of plants in botanic gardens (Kirstenbosch, Kew, Vienna) and is now propagated and reintroduced from those garden survivors. In its fynbos home the long tubular flowers are sunbird-pollinated. It is frost-tender (RHS H3) and demands acidic, sandy, sharply drained soil that never dries out completely, full sun, and good air movement - a Cape heath that likes steadier moisture than the proteas but the same sharp drainage. Grown ornamentally; the plant is inedible.
Scientific name
Erica verticillata
Plant type
shrub
Hardiness
9a-10b
Light
full-sun
Moisture
moderate
Spacing
24 inches
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.
Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.
Plotwright. (2026, May 17). Whorl heath (Erica verticillata). Retrieved 2026, August 20, from https://plotwright.com/plants/erica-verticillata
Sources used for this record
This record is compiled from the sources below.






