Landscaping in Simi Valley, CA
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Simi Valley is an inland valley bordered by the Santa Susana Mountains to the north and the Simi Hills to the south. Summers are hot, often well into the 90s, winter nights can be cold, and Santa Ana winds blow through the passes. Many neighborhoods, from the older tracts built as the city grew in the 1960s and 1970s to planned communities like Wood Ranch, back up to hills and open space.
Planting for heat and cold
Plants here need to handle both extremes: long, hot, dry summers and occasional frost. Good choices include:
- Heat-tolerant natives: sages, California buckwheat, manzanita, ceanothus varieties suited to inland conditions, and California fuchsia
- Mediterranean plants: lavender, rosemary, rockrose, olive, and many salvias
- Grasses: deer grass and other ornamental grasses
- Succulents: agaves and other hardy succulents, with frost-sensitive types in protected spots
Afternoon shade from a tree or patio cover makes a big difference for outdoor living in summer.
Clay soils
Many Simi Valley yards have heavy clay that drains slowly and can crack when dry. Tips:
- Water deeply but less often, and avoid runoff
- Loosen and amend planting holes, but don’t over-amend native plant areas
- Grade soil away from foundations
- Consider dry creek beds to manage winter runoff
Expansive clay also affects hardscape. Good base preparation and drainage are especially important for pavers and patios.
Fire risk and defensible space
Simi Valley has a history of wildfire. The 2018 Woolsey Fire started in the Simi Hills, and the 2019 Easy Fire burned near the Reagan Library. Homes near open space should maintain defensible space:
- Clear dead plants, dry grass, and debris near structures
- Keep flammable mulch away from the house
- Space shrubs and remove ladder fuels beneath trees
- Schedule a fire-season cleanup before late summer and fall
Check with the Ventura County Fire Department about requirements for your property.
Water supply and restrictions
Simi Valley is served by more than one water provider, depending on your neighborhood. Much of its supply is imported State Water Project water, and in 2022, areas dependent on that supply faced strict limits on outdoor watering. Efficient irrigation and low-water plants help yards survive future restrictions. Check your bill to identify your provider and look up current rebates.
Updating older yards
Many homes from the 1960s and 1970s still have their original lawns and sprinkler systems. Common updates include:
- Converting lawns to drought-tolerant landscaping
- Replacing old valves and heads, or converting beds to drip irrigation
- Adding a smart controller
- Replacing cracked concrete with pavers
HOAs
Wood Ranch and other planned communities often have HOA landscape guidelines. Get approval in writing before making front-yard changes.
Shade and outdoor living
Simi Valley summers make shade a priority. A well-placed shade tree can cool a patio and the west side of a house, but choose species for mature size and root behavior, and keep trees away from foundations and pools. Patio covers, pergolas with shade cloth, and covered seating areas extend how long you can comfortably use the yard. Check whether a structure needs a permit from the city.
Timing your project
Plant in fall so roots can grow during the cool, rainy months. Avoid planting new shrubs in the middle of summer heat when possible, and if you must, plan for extra water and temporary shade.
Popular projects in Simi Valley
- Drought-tolerant conversions
- Sprinkler repair and drip upgrades
- Paver patios and shade structures
- Fire-season yard cleanup
- Artificial turf
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Frequently asked questions
What plants handle Simi Valley's heat?
Heat-tolerant natives like sages, buckwheat, and manzanita, plus Mediterranean plants and many succulents, handle inland summers well.
Do I need to worry about fire?
Many Simi Valley neighborhoods border hills and open space. Defensible space and fire-wise planting are important.
Why is my yard's soil so hard?
Clay soils are common. Amending planting areas and choosing clay-tolerant plants helps.
Can I replace my lawn with artificial turf?
Yes, though turf gets hot in Simi Valley's summer sun and some rebate programs don't allow it. Many homeowners mix a small turf area with planted beds.
Nearby Ventura County areas
Back to Ventura County Landscapers: Landscaping in Ventura County
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