Native Wildflowers in the Landscape

 

Wildflowers are among Nature's most precious gifts. One of the many appeals of wildflowers is their low-maintenance need. Designed by Nature to tolerate natural growing conditions, once established, wildflowers usually require less attention than more "cultivated" types. In other words, if they are adapted to the climate and elevation of the site, they will probably need less water, less pruning, little if any fertilizer, and little pest control.

Creative ideas for gardening with wildflowers include wildflower meadows, borders, rock gardens, hillside or roadside plantings, and as a cover for spring bulbs.

Commercially available wildflower seed mixes provide a combination of species that will provide a long season of multicolored blooms. You may also purchase individual species separately for a selected display of your particular favorites. Wildflower seed collected from landscapes or natural sites can be utilized as well.

Wildflowers for sunny
Central Coast locations include: baby blue eyes, blazing star, blue-eyed grass, clarkia, California bluebell, California poppy, checkerbloom, Chinese houses, cream cups, gilia, Indian pinks, lupine, mountain phlox, penstemon, owl's clover, sea pink, sea thrift, toadflax, and tidy tips. For shady spots, favorites include columbine and heuchera (coral bells).

Plant wildflowers to germinate with winter rains and they will come to bloom with the spring sunshine. Providing the same conditions under which they grow naturally is the key to success, so be sure to match the needs of the species to conditions in your planting site. Select a site that offers good drainage and at least eight hours of sunlight per day.

Remove existing vegetation from the planting site. Cultivate the seedbed by raking or lightly tilling soil to a depth of one inch. Shallow soil preparation will limit the disturbance of dormant weed seeds. Broadcast the seed over the prepared soil and cover with soil or compost to a depth twice their thickness. For small seed, this should be no more than ¼ inch. Press or tamp seed into the soil with a sod roller or the back of a rake - good contact with the soil is essential for seed germination.

The seedbed should be kept moist for 4 to 6 weeks during the establishment period for best results. Supplemental watering with a garden hose may be necessary if natural rainfall is inadequate. Light and frequent applications of water should be applied to keep the ground moist.

Once your wildflowers begin to germinate do not allow the site to completely dry out but avoid over watering the area. If the soil becomes overly saturated, the seedlings could die from the lack of oxygen supplied to the root system. To prolong the bloom season, water once a week. Water needs will increase as the weather heats up.

Protect the planting from seed-eating birds. Weeds compete for moisture and nutrients, so remove any of these as they appear. Fertilizer application should not be necessary.

University of California Cooperative Extension Master Gardener Volunteers can provide additional gardening information upon request .Call the San Luis Obispo office at 781-5939 on Mondays and Thursdays from 1 to 5 PM.  You may also call the Paso Robles office at 237-3100 on Wednesdays from 9 AM to 12 PM.  The San Luis Obispo Master Gardeners website is at http://groups.ucanr.org/slomg/. Questions can be e-mailed to: mgsanluisobispo@ucdavis.edu.