Category Archives: sustainable design

How to Save Water & Have a Beautiful Garden

There was enough rainfall over the winter season for the California State Water Resources Control Board to modify their Emergency Water Conservation Regulations. On May 18th, 2016 it was adopted to recognize persistent yet less severe drought conditions throughout California and require local agencies to develop and implement conservation standards based on their particular circumstances.

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My friend, Adelyn, helping to water container plants and edibles.

The new standard requires local water agencies to ensure a three-year supply of water assuming three more dry years in the future like the ones we experienced from 2012 to 2015. Water agencies that would face shortages under three additional dry years are required to meet a conservation standard equal to the amount of the shortage.

Makes sense to us who have long been on the band wagon to conserve water both indoors and out. Our local water districts have both kept their water conserving restrictions in place. Since up to 70% of summer water use comes from landscape irrigation it’s a good place to start.

Both San Lorenzo Valley Water District http://www.slvwd.com – and Scotts Valley Water Districts http://www.svwd.orgoffer many tips and incentives to conserve water. Using less water-intensive plants, there are lists on their websites of drought-tolerant plants and water smart grasses, as well as replacing lawns with drought tolerant or native plants and/or permeable landscape materials such as mulch, decomposed granite, permeable pavers are just some of the ways you can keep your yard looking beautiful and also be water efficient.

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Rainbird Smart Irrigation controller

Rebate programs from local water districts offer several landscaping credits including sprinkler to drip irrigation conversion credit, weather-based irrigation controller credit, replacement credit for converting an existing lawn to water-wise grasses, greywater laundry-to-landscape irrigation conversion, rainwater catchment and downspout diversion. Both districts have guidelines and procedures to apply for the rebates on their websites.

Additional rebates from the California State Department of Water Resources are available to single-family residences for lawn replacement. This rebate application is separate from the local water District’s and you need to go online and follow the state’s guidelines in order to be eligible for these additional funds. See www.SaveOurWaterRebates.com for the details.

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Plants with similar water needs = hydrozoning

The fun part begins when you redesign the area where you took out the lawn or modify the plantings in other beds to include same water use plants. It doesn’t make much sense if you have some plants that require more water than the others in the same bed. You have to water to the highest water use plant to keep everybody happy.

Hydrozoning is the practice of clustering together plants with similar water requirements to conserve water. A planting design where plants are grouped by water needs improves efficiency and plant health by avoiding overwatering or underwatering. As you move farther away from the water source your plantings should require less water.

Now is the time before it gets hot to look at your irrigation system, plant choices and rebate options to save water and money and recharge our aquifers.

Spring Garden Madness & the Lessons Learned

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Tower of Jewels echium- a favorite of bees

Everybody’s garden looks the best in the spring. Plants are full of new, healthy growth and the heat of summer has not yet descended. Early flowering plants are at there peak and those that wait until summer to flower so that their nectar will attract hummingbirds, butterflies and bees are patiently awaiting their time in the sun. It’s a glorious time in the garden.

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Filoli flower arrangement

With this in mind I recently strolled Filoli Garden in Woodside to see what they were doing to conserve water while maintaining all their flower power. I also toured 5 gardens in Palo Alto on the Gamble Garden tour and got lots of ideas for sustainable and beautiful gardens.

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Filoli Sunken Garden

Filoli Garden is eye candy for any gardener. The estate grounds are maintained to perfection and it was interesting to see what changes they have in store for all those gorgeous, emerald green lawns. The roses, foxglove and peonies were in full bloom, the tulip pots now filled with colorful pansies. Several lawn areas had been reseeded while the large north lawn at the top overlooking the grounds had been allowed to go brown. This is what I learned they have planned to conserve water for the new lawn areas.

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Filoli solarium

Filoli is testing turf varieties that might grow well with less water and mowing in the coastal microclimate of Woodside. They have sown or planted twelve species and blends to trial. Each block will have a corresponding sign telling about the variety. The types being trialed include No Mow Fescue Mix, carex pansa, June grass, U.C. Verde buffalo grass, Pacific hair grass and Molate red fescue. Agrostis pallens, blue grama grass and purple needle grass are also included in the trials.

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No mow red fescue lawn

Many of these varieties are among the lawn replacement recommendations from Scotts Valley and San Lorenzo Water Districts. Rethink you lawn this year like Filoli Gardens and get a rebate, too.

Next on my spring garden tour agenda were several private gardens showcased on the annual Gamble Garden tour in Palo Alto. Because it’s a walking tour I got as many ideas from the gardens featured as I did passing by the front yards of the other houses. This is the neighborhood where Steve Jobs used to live. I don’t know if his family still does but his orchard on the corner lot is thriving.

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Rustic fence

The theme of this year’s garden tour, Garden are for Living, came through loud and clear in each of the gardens. Many featured sustainable features such as a decomposed granite patio that also serves also as a patanque court, poured in place concrete pavers, corten steel raised bed and path edging and dry laid flagstone paths. Edibles were included in every garden- from a grape-covered pergola to a cleverly designed raised veggie bed complete with steel corners and banding and lighting for evening dinner harvesting.

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low water combination- Olive, Iceberg rose and rosemary

While walking the neighborhood a low water use plant combination of ornamental olive trees underplanted with rosemary and Iceberg roses complemented one Mediterranean style home. Another garden nearby featured a rustic fence made from fallen tree branches. I must have taken a hundred pictures to remind me of all the great design ideas I saw that day. There is nothing like a spring garden tour to get the creative juices flowing.