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What a greenstrip is
A greenstrip is a rangeland fuel break, not a five-foot garden bed. UNR Fact Sheet 97-36 (Davison and Smith, 1997) defines greenstrips as long, narrow bands of fire retardant vegetation. In most Nevada sagebrush-grassland rangelands the recommended width is 300 feet, about 36 acres per mile. That is not Zone 0.
You are looking at a cheatgrass slope behind a ranch house and at a nursery tag for forage kochia, and asking whether a 300-foot greenstrip is the same rule as the first five feet. It is not. Open the fact sheet for the rangeland tool. Open Zone 0 for the house.
Why it matters
Embers still land at the wall. A greenstrip can slow a range fire before it gets there. It does not write a planting list into the five feet. Fire-resistant does not mean noncombustible. Forage kochia on this site is on-list with limited-evidence. That is not a Zone 0 pass.
How it works
UNR lists what the seeded plants are supposed to do: readily establish and persist, be difficult to ignite, burn with low intensity, be tolerant of fire, and in some cases provide wildlife or livestock forage. Plants in a greenstrip are normally widely spaced with little fuel between them. Grazing or mowing keeps fuels from building.
Harrison, Waldron, Jensen, Page, Monaco, Horton, and Palazzo (Rangelands 24(5), October 2002) put forage kochia (Kochia prostrata) in that job. ‘Immigrant’ was released in 1984. BLM’s 1985 greenstripping program used strips 30 to 400 feet wide. By 1992 BLM had installed 451 miles. The authors write that reports indicate forage kochia reduces flame length and intensity and can suppress or even stop wildfires, and that peer-reviewed fire-suppression findings were still lacking in 2002.
NRCS Technical Note 66 (March 2016) is the later practitioner note for sagebrush ecosystems. Vegetative fuel breaks (greenstrips) are one design option, typically 100 to 300 feet. Forage kochia is called the most preferred species there. The same note records that it can spread, especially into disturbed sites with abundant bare ground.
This site’s accepted name for the taxon is Bassia prostrata. The record keeps Kochia prostrata as the source letters. See Cupressus vs Hesperocyparis for that method.
The paths
| Tool | Typical width | What it is for |
|---|---|---|
| Zone 0 | 0–5 feet | Noncombustible band at the house |
| UNR greenstrip (Nevada rangeland) | 300 feet in most sagebrush-grassland | Slow a range fire; listed uses include around homes in high-hazard rangeland |
| BLM greenstripping (Harrison 2002) | 30–400 feet | Cheatgrass-fueled range fire, often along highways and railroads |
| NRCS TN-66 vegetative fuel break | 100–300 feet | Sagebrush-ecosystem linear fuel break |
What people mix up
- Treating a 300-foot greenstrip as Zone 0.
- Planting forage kochia against the siding because a range paper called it fire-retardant.
- Skipping maintenance (UNR: graze or mow, or fuels rebuild).
- Treating limited-evidence on-list as two lists agreeing.
- Assuming forage kochia never leaves the strip. TN-66 records spread risk on bare, disturbed ground.
How to check
- Measure the band you are talking about. Five feet is not 300 feet.
- Open UNR FS-97-36 for the Nevada definition and width.
- Open the forage kochia record. Read every evidence row.
- If you are not managing rangeland, you are not building a BLM greenstrip. Do not plant in Zone 0.
Limits
This page quotes the opened UNR fact sheet, Harrison 2002, and NRCS TN-66. It does not reprint Appendix B cultivar tables. It does not decide a BLM project. It does not treat ‘Immigrant’ as every Bassia. It does not put kochia in Zone 0. Nevada’s 300-foot figure is UNR’s rangeland recommendation, not an Oregon or California construction section.
Related records
Questions
What is a greenstrip?
UNR Cooperative Extension Fact Sheet 97-36 (Davison and Smith, 1997) defines greenstrips as long, narrow bands of fire retardant vegetation, created by seeding plants that readily establish, are difficult to ignite, burn with low intensity, and are tolerant of fire. In most Nevada sagebrush-grassland rangelands the recommended width is 300 feet, about 36 acres per mile.
Is a greenstrip the same as Zone 0?
No. Zone 0 is the first five feet from the house. A Nevada greenstrip is a landscape-scale fuel break, often hundreds of feet wide, used along roads, railways, and around homes in high-hazard rangeland. It is not a five-foot planting list.
Why does forage kochia show up?
Harrison and colleagues (Rangelands, October 2002) describe forage kochia (Kochia prostrata, ‘Immigrant’ released 1984) planted in greenstrips to disrupt cheatgrass-fueled range fires. NRCS Technical Note 66 (March 2016) calls forage kochia the most preferred species for greenstrips in that sagebrush-ecosystem note, and also records that it can spread.
Can I plant forage kochia against the house?
No. Zone 0 is not a planting list. UNR lists uses around homes in high-hazard rangeland as one greenstrip placement, at rangeland widths. This site’s Kochia prostrata record is on-list with limited-evidence. That is not a five-foot permit.
Do greenstrips maintain themselves?
UNR says they should be grazed or mown often enough to keep fuels from building. If fuels increase, effectiveness drops.