Cretan rockrose
Cistus villosus
A genus split is not a placement verdict.
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- Form
- shrub
- Rated in
- California
United States / Grow / Cretan rockrose
On this lot
1. Fire evidence and conditions
- Fire evidence
- Mixed evidence — location does not change the cited classification.
- Fire-performance conditions
- Fire ecology context
- Placement evidence
- 2 source placement records; source schemes remain separate.
- Evidence regions
- California
- Maintenance
Typed publication scope: 1 scope across 1 cited fire source
2. Why this plant is relevant here
- State distribution
- Documented in CA.
- Native range
- Introduced / established
- USDA hardiness
3. Legal, ecological, and broader status
- Legal-list status
- Seed-list status
- Reported invasive here
- Broader regional context
- Federal context
How to read this page
The status above is computed from the cited rows below: independent recommendations can support a fire-resistant result, an avoid row can produce keep-away, and disagreement stays visible as conflict. Placement notes preserve each source’s own scheme rather than translating unlike rules into one scale. This is evidence about a plant, not permission to plant it in every part of the defensible space; Zone 0 remains noncombustible.
Where its sources say to plant it
- Low-volume and slow-burning vegetation for planting on cl…: Table 4: Fair performance
- Fire Performance of Common Plants: Table 1 (favorable in 3 or more references)
The evidence
Recommends (1)
Corroboration (1 rows from 1 source)
-
Fire Performance of Common Plants (Guide to Plants)
“Table 1: favorable fire performance rating in 3 or more references (refs 9,19,22,37)”
The Diablo Firesafe Council Guide to Plants lists Cistus villosus prostratus (C.salviifolius) (Purple rockrose, Prostrate rockrose) as groundcover, evergreen, in Table 1: plants with a favorable fire performance rating in 3 or more references. The guide cites 4 of its 57 numbered references for this row (9,19,22,37). The guide states the ranking terms in its underlying references were mostly undefined and makes no attempt to rank within the list, and that fire performance is compromised without maintenance.
Mid-scale / conditional (1)
-
Low-volume and slow-burning vegetation for planting on clearings in California chaparral
“Fair performance”
Purple rockrose is printed in Table 4's “Fair performance” section.
