Plants and landscaping
Fire-resistant plants for Los Angeles yards. Where beats which.
No plant is fireproof. What keeps a house standing is how close plants grow to it, how far apart they are, and how well they're kept. Here's what LA County Fire, IBHS and UC researchers say to plant where, with the mulch test results most guides skip.
Updated November 10, 2026
All plants
will burn, says LA County Fire's own 2026 plant guide. Its list is about where each plant can go, not which plants are safe.
87 to 100%
of LA homes IBHS studied after the 2025 fires were damaged or destroyed when more than a quarter of the first 5 feet held vegetation or other fuel.
17
IBHS lab experiments found even well-watered plants ignite and burn in the conditions of a neighborhood wildfire.
The short answer
Keep the first 5 feet nearly bare. Then space things out.
LA County Fire's plant guide says it plainly: "Don't assume any plant is 'fire proof.' All plants will burn." UC's fire network says a plant's fire resistance is only as good as the pruning, watering and cleanup behind it. So the useful question isn't which plant, it's where.
Work outward from the walls. The closer to the house, the less there should be to burn.
- 01
0 to 5 feet: gravel, pavers, nothing woody
LA County Fire calls this the most important area to address: remove plants, organic mulch and patio furniture where you can. Swap bark for rock or pavers. See Zone 0 defensible space.
- 02
5 to 30 feet: low, green and spaced
Small succulents and herbaceous plants under 2 to 3 feet, or a watered, mowed lawn. LA County Fire says it's best to keep woody trees and shrubs more than 10 feet from the house, especially in front of windows.
- 03
Past 30 feet: shrubs and trees, thinned
This is where LA County Fire's list puts rosemary, oak, ceanothus and pine, with gaps between them and limbs kept off the ground. Your fire department's brush clearance rules apply out to 100 or 200 feet.
The first 5 feet
The strip against the walls decides the most.
IBHS studied homes after the 2025 Palisades and Eaton fires. Where vegetation and other fuel covered more than 25 percent of the first 5 feet, 87 to 100 percent of homes were damaged or destroyed. IBHS also noted there were effectively no inspected homes with a fully noncombustible first 5 feet, which tells you how rare a clean Zone 0 is.
IBHS's lab work explains why watering doesn't solve it. In 17 experiments, "even well-hydrated plants will ignite and burn" in conditions common during a suburban wildfire. Moisture only delays ignition, which gives the wall behind the plant longer to heat up.
California's Zone 0 rules for this strip are not in force. The Board of Forestry approved them in August 2026, then withdrew them from legal review on September 8, and the outcome of its November 5 meeting hasn't been published. The August draft would have banned bark and wood chip mulch in the first 5 feet, kept plants out from under eaves and at least 2 feet from windows, doors and vents, and allowed only low, non-woody plants elsewhere in the zone. Latest status: Zone 0 law.
LA County Fire's plant list
What goes where, by distance from the house.
LA County Fire's Plant Selection Guidelines (revised May 2026) place plants by zone rather than calling any of them safe. The department says it is "not a 'pre-approved' list." Zone 1 is the area out to 30 feet. Zone 2 is farther out.
| Plant | Where the guidelines place it |
|---|---|
| Agave, aloe, crassula, kalanchoe, sedum, senecio, opuntia, Delosperma and Drosanthemum ice plants | Zone 1 (within 30 feet). Low succulents are the close-in choice, but still keep them out of the first 5 feet. |
| Mowed, watered lawn | Zone 1 |
| Rosemary | Zone 2. Prostrate rosemary at least 30 feet out. |
| Native salvia | Zone 2 |
| Oak, ceanothus | Zone 2, at least 30 feet out |
| Pygmy date palm | Zone 2, at least 50 feet out. LA County Fire's separate palm guidance says to avoid it entirely. |
| Pine | Zone 2, at least 75 feet out |
Source: LA County Fire Plant Selection Guidelines EG-100, revised May 21, 2026. Zone 1 also allows only small herbaceous or succulent plants under 2 to 3 feet tall.
Keep these away
Plants and features to move off the house.
- Palms
- LA County Fire says many palms catch embers easily and are hard to put out once lit. No new palms within 30 feet, high-hazard palms only at 50 feet or more, and high-hazard palms in Zone 1 should come out. It lists Mexican fan palm, Canary Island, date and pygmy date palms as ones to avoid entirely. Keep dead fronds trimmed off any palm you keep.
- Juniper, cypress, eucalyptus, pine and similar
- LA County Fire's brush notice has called for removing acacia, cedar, cypress, eucalyptus, juniper, pine and pampas grass within 30 feet of a structure (50 feet in extra-hazard areas).
- Vines on walls
- "Don't plant vines on structures." LA County Fire says vines become receptive fuel beds for embers, and its Ready! Set! Go! guide names bougainvillea and wisteria.
- Tall hedges near the house
- LA County Fire's guidelines don't allow hedges taller than 6 feet within 10 feet of a structure.
- Plants along fences
- IBHS found plants growing along metal and masonry fences in the 2025 fires carried fire anyway, cancelling the fence's benefit. More in decks and fences.
Don't strip everything bare, though. LA County Fire says "Do not denude the property," since roots hold slopes in place.
Mulch
Every mulch tested burned. Some much worse.
A University of Nevada study by fire scientist Stephen Quarles burned common landscape mulches side by side. Every one was combustible. The differences tell you what to keep near the house.
| Mulch | What happened | Where it can go |
|---|---|---|
| Shredded rubber | Highest flames, averaging over 3 feet, and above 630°F | Only beyond 30 feet |
| Shredded cedar ("gorilla hair") | Fastest spread, 47.9 feet per minute, and threw embers | Only beyond 30 feet |
| Pine needles | Combustible | Only beyond 30 feet |
| Composted wood chips, bark nuggets | Mostly smoldered, which can go unnoticed | 5 to 30 feet, in beds that don't connect |
| Rock, gravel, concrete, pavers | Noncombustible | Anywhere, and the only choice within 5 feet |
Source: Quarles and Smith, The Combustibility of Landscape Mulches (University of Nevada Cooperative Extension, 2011). A retardant spray on mulch bought only 5 to 10 minutes, and the authors say irrigation shouldn't be relied on.
Cost: the 2024 Headwaters study priced pea gravel for the 5-foot zone around a 1,000 sq ft footprint at about 6 cubic yards, 3 inches deep, for about $2,800 installed, plus about $100 for weed barrier.
Out to 30 feet
Spacing does the work species can't.
IBHS found that keeping fuel in the 5 to 30 foot zone below 25 percent cover cut the likelihood of damage by about 24 percent. A 2025 UC Berkeley study estimated that clearing vegetation within 5 feet alone could cut losses by about 17 percent.
IBHS's Wildfire Prepared Home standard gives concrete spacing rules for 5 to 30 feet that are easy to check in your own yard:
- Shrubs
- Space them at least twice the height of the tallest plant apart, up to 10 feet. No privacy hedges.
- Trees
- Limb them up 6 feet from the ground and keep 10 feet between tree crowns.
- Grass
- Keep it under 4 inches.
LA rules today
What your fire department actually enforces.
State law (Public Resources Code 4291) already requires defensible space out to 100 feet in hazard zones. Local departments enforce stricter versions each spring:
- City of Los Angeles (LAFD)
- Clear within 200 feet of structures. Cut grass and native brush to 3 inches. Trees over 18 feet tall need no foliage within 6 feet of the ground, 10 feet of clearance from chimneys and 5 feet above roofs. Remove dead palm fronds. Native shrubs can stay if they're no larger than 216 cubic feet and spaced 18 feet apart. The 2026 deadline was May 1.
- LA County Fire (Altadena, Topanga, Malibu, La Cañada Flintridge and more)
- Establish a 5-foot ember-resistant zone around structures and remove the listed high-hazard plants within 30 feet. Inspections start each spring.
- Pasadena
- Clear within 200 feet. Trees within 30 feet need no branches within 3 feet of the ground, and vegetation may not cling to the house.
Got a notice? Our brush clearance guide covers deadlines and fees.
How RF1 helps
We plan the yard and get the work done.
Mark flies a drone over the house and the land around it, then walks the property to mark what should go, what should move and what can stay. RF1 then coordinates the Zone 0 cleanup, gravel and brush clearance with vetted crews, and documents the before and after for your insurer.
Questions
Plant and landscaping questions we hear most.
- What plants are fire resistant in Southern California?
- None are fireproof. LA County Fire's 2026 guidelines put low succulents, small herbaceous plants and mowed lawn closest to the house (but still out of the first 5 feet), and woody shrubs and trees farther out. Spacing and cleanup matter more than species, according to UC and IBHS research.
- Are succulents fire resistant?
- They're among the better choices. LA County Fire places agave, aloe, crassula, kalanchoe, sedum and certain ice plants in Zone 1, within 30 feet. Keep them out of the first 5 feet and clear out dead material, since the August 2026 Zone 0 draft only allowed non-thatching succulents in that strip.
- Is rosemary flammable?
- LA County Fire puts rosemary in Zone 2 and prostrate rosemary at least 30 feet from the house. Keep it out of the first 5 feet.
- Are palm trees a fire hazard?
- Yes, especially with skirts of dead fronds. LA County Fire says no new palms within 30 feet, high-hazard palms only at 50 feet or more, and removal of high-hazard palms in Zone 1. LAFD's brush rules require removing dead palm fronds.
- Is rubber mulch safe near a house?
- No. Shredded rubber produced the highest flames of any mulch tested. Use rock, gravel, concrete or pavers within 5 feet of the house, and keep rubber, pine needles and shredded cedar beyond 30 feet.
- Do watered plants stop fire?
- Not reliably. IBHS ran 17 experiments and found even well-hydrated plants ignite in the conditions of a neighborhood wildfire. Water delays ignition, which can give the wall behind the plant more time to heat up.
- Do I have to remove plants within 5 feet of my house?
- Not under state law yet. California's Zone 0 rules are not in force. Your local fire department already enforces brush clearance out to 100 or 200 feet, and LA County Fire asks for a 5-foot ember-resistant zone. IBHS data from the 2025 fires makes the first 5 feet the single most important area to clear.
- Should I remove all my plants?
- No. LA County Fire says "Do not denude the property," because roots hold slopes. Clear the first 5 feet, keep plants low and spaced out to 30 feet, and thin shrubs and trees farther out.
Keep going
Sources
- LA County Fire, Plant Selection Guidelines EG-100 (revised May 21, 2026)
- LA County Fire, Palms and Wildfire (January 2026)
- LAFD, palms and wildfires
- LA County Fire, annual brush clearance notice
- LA County Fire, Ready! Set! Go!
- IBHS, vegetation in Zone 0
- IBHS, The 2025 LA Conflagrations, executive summary (December 2025)
- IBHS Wildfire Prepared Home 2025 Technical Standard
- UC ANR, "No plant is fireproof" (April 2026)
- Quarles and Smith, The Combustibility of Landscape Mulches (2011)
- UC Berkeley (2025), how California communities can cut wildfire damage by half
- Headwaters Economics and Quarles, Retrofitting a Home for Wildfire Resistance (2024, CAL FIRE funded)
- Public Resources Code 4291 (defensible space)
- Board of Forestry Zone 0 draft summary, August 2026 (UC ANR copy; not in force)
- LAFD brush clearance
- Pasadena Fire inspection services
Facts checked November 10, 2026. Costs are rounded from the 2024 Headwaters Economics study for CAL FIRE (Northern California prices; Southern California tends to land within 10 percent). They're a benchmark, not RF1 quotes.
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