San Diego gets about 10 inches of rain a year, almost all of it from November to March, and has one of the best climates in the country for succulents. It ranges from USDA Zone 11a downtown to 9b in the inland foothills. As of September 2026, homeowners replacing lawn get $2 per square foot through the Metropolitan Water District's SoCal Water$mart program, which the San Diego County Water Authority and the City of San Diego both direct residents to (SDCWA). The city's permanent watering rules already limit landscape watering to before 10 a.m. or after 6 p.m.
San Diego growing conditions
| Factor | San Diego | Source |
|---|---|---|
| USDA hardiness zone (2023 map) | 11a downtown (92101); 10b on the coast (La Jolla 92037); 10a inland (Rancho Bernardo 92128); 9b in Escondido and Ramona | USDA |
| Annual precipitation | 9.79 inches (Lindbergh Field), nearly all November–March | NOAA 1991–2020 normals |
| Frost | None recorded at Lindbergh Field. Light frost is possible in inland valleys. | NOAA |
| Soils | Beach sand on the coast; clay and decomposed granite inland | Local observation |
San Diego is really two gardening climates:
- Coastal (roughly 10b–11a): the marine layer keeps summers mild and winters frost-free. Succulents, aeoniums and coastal natives thrive with little irrigation. Some desert plants struggle under "May Gray" skies.
- Inland valleys and foothills (9b–10a): hotter, brighter summers and occasional light frost. Agaves, dry-slope natives and Mediterranean shrubs do best here.
Drainage decides where succulents go. Look up your address with our San Diego zone lookup.
San Diego rebates (as of September 2026)
| Program | Amount | Cap | Key requirement | Link |
|---|---|---|---|---|
| Turf Replacement via SoCal Water$mart (SDCWA and City of San Diego customers) | $2.00/sq ft (Metropolitan-funded) | 5,000 sq ft/yr residential | Reservation first; 3 plants/100 sq ft; stormwater feature | SDCWA · SoCal Water$mart |
| Tree rebate | $100 per tree | 5 trees | 15-gallon or larger; receipt required | City of San Diego |
| County of San Diego supplement (unincorporated areas) | +$1/sq ft (+$1 more for native plant areas) | Up to 5,000 sq ft | Unincorporated address; listed water agency | County: supplement paused |
The county supplement is paused. The County of San Diego has asked unincorporated-area residents who haven't applied yet to "pause submitting new applications until further notice," and projects approved in July and August 2026 won't receive the county's extra $1. Metropolitan's $2/sq ft still applies. The City of San Diego doesn't publish a separate city-funded residential turf rate. It sends homeowners to the Metropolitan program.
Program requirements (Metropolitan's rules):
- Reserve before you remove. Projects "started or completed before reservation are ineligible."
- Living turf only, with a minimum of 250 sq ft (or all the turf you have, if less).
- At least 3 plants per 100 sq ft, a 3-inch ring of mulch, and no bare soil.
- A stormwater retention feature (rain garden, dry riverbed, swale, berm or rain barrel). Only permeable hardscape is allowed.
- No overhead spray and no synthetic turf in the converted area. Finish within 180 days.
Watering rules
The City of San Diego has permanent mandatory water-use restrictions (City of San Diego):
- Landscapes, including potted plants and home vegetable gardens, "may only be watered before 10 a.m. or after 6 p.m."
- No irrigation runoff onto sidewalks, streets or neighboring property.
- No landscape watering during measurable rain or within 48 hours after it.
Other water districts in the county set their own rules, so check with yours.
HOA rules
California Civil Code §4735 voids HOA rules that prohibit "low water-using plants as a group or as a replacement of existing turf," and it does the same for rules banning artificial turf. During a declared drought emergency, HOAs also can't fine owners for watering less (Civil Code §4735). HOAs can still review designs under rules that comply with the law.
The San Diego plant palette
Succulents: aloes (Aloe arborescens, coral aloe), agaves ('Blue Glow', Agave attenuata on the coast), aeoniums, dudleyas (native), crassulas, red yucca and prickly pear.
Natives: ceanothus, manzanita, California buckwheat, Cleveland and white sage, toyon, lemonade berry and coast sunflower.
Color: California fuchsia, monkeyflower, penstemon, blanket flower, and Mediterranean-climate imports such as trailing rosemary, lavender, grevillea and kangaroo paw.
Groundcovers: low ceanothus and 'Bee's Bliss' sage on slopes. See drought-tolerant groundcovers for more.
Trees: Torrey pine if you have room (it grows wild nowhere else on the mainland), western redbud, desert willow inland, and coast live oak.
Use CNPS's Calscape to find natives for your exact address.
Coastal or inland: quick picks
| Situation | Plant first | Skip or limit |
|---|---|---|
| Coastal, foggy, frost-free | Aeoniums, dudleyas, Agave attenuata, coast sunflower, low ceanothus | Plants that need summer heat to flower |
| Inland, hot summers | 'Blue Glow' and other agaves, Cleveland sage, buckwheat, desert willow, red yucca | Frost-tender aeoniums and Agave attenuata in low spots |
| Slopes anywhere | Low ceanothus, buckwheat, trailing rosemary, dudleyas in rock pockets | Shallow-rooted groundcovers that slump when wet |
Where you're unsure, check a nearby public garden or Calscape's address search before you buy.
Design notes
- Mass your succulents. A drift of one aloe species looks better than one of everything. Repetition is what makes San Diego's best front yards work (front yard layouts).
- Plant for your side of the marine layer. Coastal yards favor aeoniums, natives and winter bloom. Hot inland yards handle agave, desert accents and summer-flowering Mediterranean shrubs.
- Use slopes. Terraced dudleyas, low ceanothus and rock-lined swales turn erosion problems into features and meet the rebate's stormwater requirement.
- Water succulents and natives on separate zones. They need different schedules (7 principles of xeriscaping).
From our installs: Most succulent losses come from rot, not drought. On inland clay, plant succulents on mounds with gritty mix, and water them far less than you think. Coastal gardens often need summer water only every few weeks once plants are established. Put succulents on their own drip valve so a hot-week increase for the natives doesn't drown them.
Getting started
- Reserve at SoCal Water$mart with photos of the living lawn.
- Remove the turf (methods compared) and cap or convert the spray heads.
- Plant in fall so winter rain helps establishment, and build in the stormwater feature.
- Finish and submit within 180 days of your reservation.
Hire it out
Browse the landscape pros listed for San Diego, and look for crews who have built SoCal Water$mart-compliant projects. Compare bids against our cost guide.
More California guides: Los Angeles and the Bay Area. Every district's program is in our California turf rebate guide.
Frequently asked questions
Does San Diego pay you to remove your lawn?
Yes. As of September 2026, residents get $2 per square foot through Metropolitan's SoCal Water$mart Turf Replacement Program (up to 5,000 sq ft a year), plus $100 per tree for up to five trees. The County's extra $1/sq ft for unincorporated areas is paused.
What are San Diego's watering rules?
The City of San Diego's permanent restrictions allow landscape watering only before 10 a.m. or after 6 p.m., prohibit runoff, and ban watering during or within 48 hours after measurable rain.
What zone is San Diego?
Downtown San Diego is Zone 11a on the 2023 USDA map, the coast is mostly 10b, inland communities such as Rancho Bernardo are 10a, and Escondido and Ramona are 9b.
What grows best in San Diego without water?
Once established, aloes, agaves, dudleyas, California buckwheat, ceanothus, manzanita and Cleveland sage need little or no summer water near the coast. Inland yards need occasional deep watering in summer.
Can my HOA stop me from xeriscaping in San Diego?
No. Civil Code §4735 prohibits HOA rules that ban low-water plants as a replacement for turf. HOAs can still review your design.
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