ZONE 23: Thermal belts of Southern California’s coastal climate

One of the most favored areas in North America for growing subtropical plants, Zone 23 has always been Southern California’s best zone for avocados. Frosts don’t amount to much here, because 85 percent of the time, Pacific Ocean weather dominates; interior air rules only 15 percent of the time. A notorious portion of this 15 percent consists of those days when hot, dry Santa Ana winds blow. Zone 23 lacks either the summer heat or the winter cold necessary to grow pears, most apples, and most peaches. But it enjoys considerably more heat than Zone 24—enough to put the sweetness in ‘Valencia’ oranges, for example—but not enough for ‘Washington’ naval oranges, which are grown farther inland. Temperatures are mild here, but severe winters descend at times. Average lows range from 43 to 48°F (6 to 9°C), while extreme lows average from 34 to 27°F (1 to –3°C).

Closer to the coast parts of the palisades is zone 24

In Pacific Palisades the landscaping is beautiful! The Pacific Palisades is in climate zone 23 which is one of the most favored areas in North America for growing subtropical plants. Zone 23 has always been Southern California’s best zone for avocados and Valencia oranges as well.
The following are 5 tips for success with your Pacific Palisades landscaping projects.

Tip # 1 – Shady Garden – Let more light in by asking your arborist to lace open high tree branches and remove low lying tree branches.

Tip # 2 – Privacy Hedges can make great neighbors… Ficus Nitida, Podocarpus, and Ligustrum hedges can provide a beautiful green wall to block the street, neighbors driveways, tight quarters and provide security. Height can be anywhere from 5-12 feet high.

Tip # 3 – The gorgeous blooms of Dicentra or Bleeding Hearts as more commonly known are a superbly elegant addition to any late spring or early summer Pacific Palisades garden. Try planting single late tulips (Greuze) the Blue Heron or Fringed Tulip, the Blue Ribbon Tulip or triumph tulip along with the Gold Heart dicentra and you will end up with a glorious color combination that you and all of your Pacific Palisades neighbors will enjoy all summer long.

Tip # 4 – Agave – Agave isn’t just for making tequila. The plant is actually quite beautiful and make for an ideal border in your Palisades landscape. I recommend the Blue Flame agave plant along with the Agave Blue Glow. The Blue Flame agave was created as a hybrid between So Cal hybridizer David Verity in the 60’s . This plant is a hybrid of the Agave shawii and Agave attenuata. The leaves have tiny pointed teeth at their tips, a little red and brown on the edges and a little yellow that glows in the sun. The Blue Glow Agave has chalky blue green toned leaves ribboned with red and gold. The combination of these two Agaves will make any Palisades landscape stand out.

Tip # 5 – Lavender for Summer Borders
The lush flowing carpet of light green Cypress Spurge together with Lambs Ears contrast with the upright blue of the Eryngium x zabelii Jos Sea Holly and the tan Tufted Hair Grass. All plants are deer and drought resistant.