The debate between which plants should prevail in gardens, native plants or introduced plants, is a contentious one.
Advocates of our native flora will point out such qualities as water conservation, wildlife opportunities, their limited need for fertilizer and reduced maintenance needs. Traditionalists, favoring exotic plants, speak of their year-round good looks, the large diversity of choices, easy availability and the important security of gardening with plants they are already familiar with.
The vast majority of our local landscapes employ an array of well known introduced, non-native plants, such as delphiniums, penstemons, solanums, ranunculus, salvias, clematis, violas, orchids, poppies, lilies, sweet peas, bleeding hearts and maybe even dichondra. Traditionalists love these familiar and colorful plants. A quick walk around the block would likely uncover most if not all of these well-known stalwarts of our gardens. What most local gardeners may not know is that all of these plants are native to Orange County; maybe not the same species or hybrid growing in your garden, but a native version of the same plant. Deep blue delphiniums and bright yellow violas growing wild in Orange County? Yes. Climbing clematis? Yes. Golden ranunculus?
Yes. Six foot tall orange lilies? Yes, lots of them. Remember, Im not talking about these plants growing in cultivation or being planted; Im referring to completely native plants, wild and indigenous. Right here in Orange County, on our hillsides and canyons grow fragrant pink sweet peas, exotic nodding peonies, elusive orchids, stunning purple penstemons, huge yellow bleeding hearts, a wide variety of salvias, several poppies and even a rare but beautiful spreading dichondra.
Yes, it is possible to incorporate a few local native plants into your garden, while not venturing too far from the popular, familiar plants you're already accustomed to. Perhaps the gap between the advocates of native plants and those of introduced plants isnt as wide as we think it is. If youre a traditionalistand you cant imagine a garden without your familiar plants, this weekend would be a excellent time to take a slow casual walk at Crystal Cove State Park, the Laguna Coast Wilderness or any one of the many trails in The Cleveland National Forest. Delphiniums, ranunculus, violas, sweet peas and many other familiar garden friends might greet you there.
Ron Vanderhoff is the Nursery Manager at Roger’s Gardens, Corona del Mar.
Questions from Readers March 26.
My roses are growing like crazy. Im so excited. There are lots of big buds, but they are being attacked by a zillion aphids. What should I spray with? I dont want to damage the flowers.
Elizabeth, Newport Beach
Aphids are incredibly common at this time of time of year Elizabeth. I wouldn't worry too much. In fact, if you did nothing Ill bet the aphids disappear in two or three weeks and the roses are no worse off. If you just cant bear to see them, you can knock most of them off with a brisk stream of plain water. If that still doesn't satisfy you then use a spray bottle of Insecticidal Soap to kill them. Whatever you do, dont go get the heavy chemicals and especially not a dose of systemic insecticide.
Aphids dont really do much harm, but these chemicals sure can.