Del Mar, California, sits right along the San Diego County coastline, where the Los Peñasquitos Lagoon meets the sea, where the waves roll in just past the racetrack, and where the air smells like salt and eucalyptus on a March morning. It’s a gorgeous 2.1-square-mile city, and it’s worth protecting.
March is the perfect time to reset. The coastal weather is mild, the garden is thirsty, and your energy bills from winter are still fresh in your mind.
Your Home Is Leaking Energy (And You Probably Don’t Know It)
Small energy habits add up faster than most people expect. Start here:
- Switch to LED bulbs throughout your home. They use up to 90% less energy than standard bulbs and last significantly longer.
- Unplug devices when not in use. Phantom energy (standby power from chargers, TVs, and appliances) can account for up to 10% of your home’s total energy use.
- Adjust your thermostat by 2 to 3 degrees. Del Mar’s coastal climate means you rarely need extreme heating or cooling. A smart or programmable thermostat can optimize this automatically.
- Wash laundry in cold water. It’s gentler on clothes, costs less, and can cut a meaningful amount of CO2 emissions per year.
Water Is Not Unlimited Here
Southern California’s water situation is serious. Rainfall is limited, imported water fills the gap, and outdoor irrigation accounts for roughly 50% of residential water use in California. That number is higher than most Del Mar homeowners realize.
A few changes that actually work:
- Install a low-flow showerhead. It controls monthly consumption without changing your shower experience.
- Fix leaks now. A dripping faucet wastes thousands of gallons annually.
- Water your yard between 8 p.m. and 9 a.m. Del Mar’s own landscape guidelines actually recommend this window to minimize evaporation.
- Use drip or micro-irrigation for garden beds. It delivers water directly to the roots, significantly reducing waste.
Rethink Your Yard: Go Native, Go Local
Del Mar’s landscape is ideal for drought-tolerant gardening. You don’t need a green lawn to have a beautiful yard. California-friendly native plants use up to 85% less water per year than traditional turf, and once established, they thrive on minimal attention.
Good plants for Del Mar homeowners to consider this March:
- Sage, buckwheat, and ceanothus (native and low-water)
- Lavender and rosemary (Mediterranean climate staples)
- Succulents and ornamental grasses for coastal conditions
March is an ideal planting month because the soil is still moist from winter rains and temperatures haven’t spiked yet. Plants established now have the best chance of surviving their first dry season.
Cleaning Your Home Without the Chemical Runoff
Del Mar borders both the ocean and the lagoon. What goes down your drain or into your yard eventually reaches those waters. Switching to non-toxic, biodegradable cleaning products is one of the simplest ways to reduce that impact.
Easy swaps:
- Replace single-use paper towels with washable cloth towels
- Use concentrated cleaning products (less packaging, same result)
- Avoid pesticides and chemical fertilizers near the lagoon-adjacent properties in North Del Mar and the Riverbed Trail area
- Buy in bulk where possible to cut down on plastic packaging
The Long Game: Why This Matters More Than You Think
Sustainable habits aren’t just good feelings. They translate into lower utility bills, higher home resale value, and a healthier community. Homes with eco-friendly features sell faster and at a premium, according to consistent real estate data. In a market like Del Mar, where the median home value sits well above the national average, that matters.
Beyond finances, Del Mar has a real stake in environmental health. The city’s proximity to Los Peñasquitos Lagoon, one of San Diego County’s most important coastal wetlands, means that stormwater runoff, pesticide use, and water waste in residential neighborhoods directly affect local wildlife, shorebirds, and the lagoon ecosystem.
The benefits of sustainable living in Del Mar stack up:
- Lower monthly energy and water costs
- Reduced chemical runoff into the lagoon and ocean
- Better indoor air quality from fewer synthetic products
- More resilient landscaping that survives dry summers with minimal intervention
- A positive contribution to a community that genuinely values its coastline
Start This Week
You don’t need to overhaul your entire home. Pick two or three things from this list and do them this week. Swap a bulb. Set a watering timer. Plant one native shrub. Call your water district about turf removal rebates (San Diego County offers several active programs).
Del Mar is a small city with an outsized opportunity to model what responsible coastal living looks like in 2026. The ocean is right there. Let’s act as if it matters.
Sources: nhm.ac.uk, extraspace.com, ecowatch.com, calscape.org, plantsexpress.com, delmar.ca.us, windowfilmpros.com, bioenergyconsultant.com
Header Image Source: Riccardo Annandale on Unsplash
