Category Archives: drought tolerant plants

San Francisco Flower & Garden Show 2013

flagstone_steps 2Every year I look forward to the San Francisco Flower & Garden Show for inspiration and landscape design ideas. Held in March of each year, it takes all day to look at everything, inspecting each display garden for new plant introductions and new uses for familiar ones. Creative pathways and unique solutions for seating, arbors, water features, outdoor kitchens and patios greet you at every turn. Even the marketplace offers plants and garden objects that you simply must have in your own garden. This year was no exception.

I started attending the San Francisco Flower & Garden Show back when it started in 1986 and was held at Fort Mason in San Francisco. My father, a retired Army colonel, enjoyed it because he was already familiar with the army post. He accompanied me many times even after the show moved to the Cow Palace. I always think of him when I'm at the show as he nurtured my interest in gardening with those giant pansies in my first garden.

Now the show is at the San Mateo Event Center. It's still a huge and complex production using 150 dump truck loads of sawdust and mulch and 280,000 pounds of rock to create the display gardens. Even the drive up to San Mateo starts one thinking about plants as the ceanothus are covered with cobalt blue flowers at this time of year and the Western redbud are striking clothed in magenta blossoms.

Another native plant that caught my eye at the show was a yellow flowering cribes_aureum_gracillimum 2urrant, Ribes aureum gracillimum. Golden currants are native from Riverside county to the south Bay Area. Masses of yellow flowers in early spring are enjoyed by Anna hummingbirds, bumblebees and Monarch butterflies.  California thrashers and robins love the berries which are edible and taste like Thompson seedless grapes. It's a beautiful, low water addition to the garden along with the deep, pinkish-red flowering currant, 'King Edward VII'  ribes sanguineum.

Several display gardens featured a small tree with interesting contorted branches. Twisty Baby Dwarf Black Locust grows to only 15 ft tall and at this time of year bloomed with fragrant, white flower clusters. In the legume Twisty_Baby_Dwf_locust 2or pea family, the robinia species has nitrogen-fixing bacteria on its root system. For this reason it can grow on poor soils and is an early  colonizer of disturbed areas. They have been planted well beyond their native range of Eastern United States by settlers for fast homestead shade and hardwood fence posts. Early settlers of our area planted them also and they can still be seen along Hwy 9.

In the Marketplace of the show, I couldn't resist buying some metal sculpture birds hand crafted from cast off 55 gallon steel drums. Artists in Haiti create the garden art which is sold through Beyond Borders providing them access to global markets. The Fair Trade movement helps build sustainable trading partnerships that honor the value of labor and dignity of people.

Another booth offered pine needle baskets and trays created in the mountains of Mexico. Weavers in this area collect the long pine needles off the forest floor bundling them together. Many were trimmed with sand-cast polished nickel alloy trim which has the luster of silver but requires no polishing. These handmade baskets and trays were beautiful and functional.

Western Horticultural Society offered their Hot Plant Picks 2013 and several caught my eye. With silver foliage, the Spanish lavender, lavandula stoechas 'Silver Anouk', would make a great addition to any garden. Ditto for a new lavender flowering, variegated, deer resistant 'Wynyabbie Highlight' westringia. I also really liked a 'Lemon Light' salvia greggii new introduction as well as a dwarf leucadendron called 'Little Bit'.

It was fun and educational this year at the SF Flower & Garden Show. As they say "a good time was had by all" and I'll be using these new plants whenever I can in gardens I design this year.
 

Saving Water in the Garden

With so much rain this winter it's easy to forget just how precious water is. Globally, water is the new oil. In our own Santa Margarita aquifer everything we can do to replenish the groundwater is vital for our own survival and for that of generations to come. Water cost money – to buy, store, collect, pump, filter and distribute. It just makes good sense to be water wise in your home and garden.

Scotts Valley Water District has been offering a free information series during January about water conservation. Each Wednesday night from 7:00-8:30 a different subject is presented. They are open to the public. I've attended two so far- Storm Water Management and Rainwater & Greywater Harvesting, lots valuable information about ways to save water and money.

When it rains it pours. Think about ways to slow this free water from the sky and prevent it from running off your property. Allow it to spread and sink into the ground. Easy ways to do this can also make for a beautiful landscape.

Design your patio using permeable pavers that allow storm water to percolate into the soil. Whether you choose flagstone over a gravel base, pervious concrete, interlocking pavers with spaces between or crushed gravel all enable rainwater to seep into the soil, recharge the aquifer and prevent runoff into streams and storm drains.

Pervious pavement for driveways can capture runoff , recharge the groundwater and keep pollutants in place in the soil. Large volumes of runoff causes serious erosion and siltation in rivers and streams. Naturally occurring micro-organisms digest car oils, leaving little but carbon dioxide and water. Turf block (concrete blocks with holes) is a good choice for areas that don't receive a lot of heavy traffic and can also be used for paths with gravel or groundcover between.

Plants and trees also slow water runoff. They help stabilize slopes and prevent erosion of valuable nutrient-rich topsoil. They create wildlife habitat and act as a natural pest control. A beautifully designed landscape using California native or drought tolerant plants reduces the need for fertilizers, pesticides, excessive watering and overall maintenance requirements.

You can design a rain garden to capture stormwater runoff from roofs, driveways and other impervious surfaces and allow the water to sink back into the ground. A dry creek bed can also be a good way to slow runoff. Some utilize drain pipe underneath to capture the rainwater so it has time to percolate into the ground.

Using vegetation or mulches to cover bare soil is a key ingredient to slow down runoff. Mulches are a good choice for areas with less than 33% slope, Vegetation works well on areas with less than a 50% slope. Mulch can be organic-such bark chips, straw or grass clippings or inorganic gravel or cobbles. All protect soil from erosion, conserve soil moisture and prevent weed growth. It's all part of the plan to slow, spread and sink water back into the ground.

Installing a rain barrel is a simple way to catch rainwater runoff from your roof. If you have room you might consider a large water tank above or below the ground to collect water. A friend of mine operates a small nursery on her Watsonville property. Sherry and her husband, John, decided to collect the rainwater runoff into a series of tanks to save money and utilize this resource. The 4500 sq.ft roof of their barn provides enough water to fill 3 large tanks. Last year they collected enough water to irrigate their nursery, Terra Sole, for quite a bit of the year. They eventually plan to install solar panels to offset the energy required to pump the water. Every little bit helps

If you'd like more information and ideas about how to beautify your landscape and save water, maintenance costs and time  please come to the last Water Wednesday presentation by Scotts Valley Water District on Jan 30th at 7:00 pm at their office on Civic Center Drive. LeAnne, the water conservation coordinator, and I will be showing slides of landscapes, some of which I designed, that feature low water use plants, lawn replacement ideas and California natives. There's a solution for every family and lifestyle.
 

Native Plants for Winter Birds in the Santa Cruz Mts.

There's no way around it. January may signal the start of the new year but most of our plants still have the day off. I need inspiration on these cold mornings when most of my plants are asleep. This is the time of year when it's doubly important to include plants in your garden that can take a licking, keep on ticking and provide some much needed food for our feathered friends.

During the winter small songbirds and hummingbirds face big challenges, too. Just like us, they need to keep warm.  Our fuel might be a comfort food like hot stew, theirs are foods rich in antioxidants and fats or high octane nectar. Native shrubs with berries or nectar at this time of year will benefit them as well as providing hardy winter color in your garden.

Small flocks of Chestnut-backed chickadees frequent my garden regularly. I can hear their familiar chattering from quite a distance. I read in Audubon magazine that they weigh about as much as a dozen paperclips but their bodies are large for their mass. They have to ramp up the number of hours they devote to feeding. At night chickadees cram themselves into tiny cavities and shiver, burning the day's fuel to keep from freezing.

Other birds that I enjoy in my garden at this time of year are Lesser goldfinches, Townsend warblers, Ruby-Crowned kinglets, robins, brown creepers, Hutton's vireo, Dark-eyed juncos and Anna's hummingbirds.  These native plants will make both of you happy and it's not too late to plant.

Mahonia (Berberis aquifolium) is one of my favorites for winter color and spring berries. Fat cluster of golden yellow flowers light up the Douglas fir woodland understory. In the garden it has a surprising level of adaptability to tough conditions including low water, not-so-great soil and shade or partial sun. In the barberry family, they have gorgeous prickly foliage and powdery-blue, then black berries that the birds devour in late winter and early spring. Hummingbirds rely on the flowers as a source of nectar-rich food in wintertime when there isn't much else around. I saw them visiting these beautiful flower spikes in Seattle recently at Chihuly Glass Exhibit (got the spelling right this time). There are many cultivars of mahonia now available and they are all great.

Common Snowberry (Symphoricarpus albus) is a native that starts its show in fall. It thrives in a woodland garden or in the dry shade under oak trees. A background plant most of the year, the white berries on thie 4-foot shrub stand out when the leaves drop.  Seldom troubled by pests this small shrub can be used to control erosion and is deer resistant. Beautiful ornamental white fruits cover the plant at this time of year and are valued by varied thrush, robins and quail.

Hairy honeysuckle (Lonicera hispidula) can  provide both berries and nectar for local birds. Large, pink nectar-rich blossoms give way to red juicy berries in the fall and often hang on the vines during the winter. They are relished by birds. By pruning them a bit to get more branching they'll be denser and flower more. It's as deer proof as they come. They do well in clay soil in full sun and also shade. Snowberry, Hummingbird sage, toyon and coffeeberry are other natives that complement them.

Toyon (Heteromeles arbutifolia) is the official shrub of the State of California. Also called the Christmas berry shrub it's common in chaparral and open wooded forest. Many birds enjoy their bright red berries throughout the winter including cedar waxwing, bushtit, warblers, robins, flickers, finches and sparrows.  Toyon make a good screen as well as a beautiful specimen plant. They are drought tolerant when established but tolerate some water in the garden if drainage is good. They are relatively fire resistant, like full sun but will tolerate shade. They adapt to sand, clay or serpentine soils. Butterflies also are attracted to the flowers in the summer.

These are just a few great natives to plant in your garden. Other native plants for the winter garden are Pacific wax myrtle, Strawberry tree and Red-twig dogwood.  

By choosing plants that are native to our region birds spend less energy and time foraging for food as they more easily recognize them as a food source. You can have your beautiful berries and color and the birds can eat them, too.