Category Archives: garden design

Vertical Green Walls in Tacoma & Seattle

Winter is a great time to daydream about future gardens – the garden that could be, the garden of your dreams. Soon it'll be time to prune the roses. The fruit trees are there just waiting for dormant spray and a little winter pruning and those tangled vines beckon you every time you walk by. But for now why not let your imagination go wild and consider adding a green wall to enjoy while you sit on the patio this summer?

While I was up in the Pacific Northwest over Christmas time I had the opportunity to visit two impressive green walls.  Also called living walls they got me thinking about the wall behind the patio table on my deck. It would look just awesome covered with living plants. Much of the cost of a large green wall installation is the irrigation system which allows for easy maintenance but since I'm willing to water it by hand every few days my wall will be an affordable version. First though, some inspiration.

The first wall I visited was the 20-by-40-foot living wall at the Goodwill-Milgard Work Opportunity Center in Tacoma. Designed by the the famous French inventor of modern green walls, Patrick Blanc, this wall literally dripped with plants, moss and raindrops on the day I was there.

Installed in 2009 the diagonal swaths of plants are inserted between a double layer of felt, slit to make planting pockets. Most of the soil was knocked off small 4" plants, even the woody plants. I read that Blanc used 96 different species initially but only the toughest have survived. Granted it was December when I saw the wall and some of the plants were dormant but those remaining were quite colorful and made a beautiful tapestry. Stripes of golden acorus grew beside ribbons of bergenia, artemisia, euphorbia, rubus, carex grass, Asiatic jasmine, thyme, pachysandra and vinca minor. Bands of variegated iris high up on the wall caught my eye and I marveled at the woody lily-of-the-valley shrubs and skimmia that remained small in this environment.

A drip irrigation runs across the top of the wall and in a horizontal band halfway down. Water and fertilizer drip through the felt to keep the plants perpetually moist and nourished similar to the mossy cliffs where many of these plants grow in their native environments. There's a freeze switch to stop the irrigation on the coldest days so the wall doesn't turn into a solid wall of ice.  I was told that the wall is pruned twice a year via a cherry picker.

The plan for my own living wall is to mimic the look with those Woolly Pocket planters made from recycled plastic bottles. They're the simplest and lightest to use. For clients I can suggest an outdoor wall near the kitchen planted with rosemary, oregano, thyme, parsley and other sun-loving herbs. Or in a super shady spot, the pockets could be planted with hardy houseplants like spider plant, creeping jenny, queen's tears, small ferns, wandering jew and creeping charlie. These have all survive at my house under the overhang for more years than I can count.

The second living wall I visited in Seattle covered a new building outside the new Amazon offices. This green wall is constructed from a vertical metal grid that supports square modular trays. The plants grow lush in soil pockets with micro spray irrigation providing moisture and nutrients. The effect is beautiful to look at and experience.

Winter chill made the plants pop with bright colors and glowed with deep gold, burgundy red, acid green and tawny auburn. Diagonal bands of familiar hardy plants such as carex buchanii, cotoneaster lowfast, iberis, star jasmine, Powis Castle artemisia, liriope and ferns drew my eye up, down and sideways. The wall encloses a small plaza with warm wood and concrete seating which would be inviting to sit and stay awhile on a warm day.

I'm looking forward to putting together my own green wall. I may even grow succulents in a frame in another spot.  It's an easy fun project to enhance your time outdoors and I plan to suggest this design solution whenever possible in the future.  Take the time to day dream about something new and fun for your own garden.

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.
 

Happy New Year 2013 from The Mountain Gardener

It's a humbling experience to read some of my past columns celebrating the New Year. Once you write something down it's there forever. Like a social media post it can haunt you. Such lofty goals I've set for myself over the years. But now it's that time of year when I look around the garden and think about the good things I accomplished and some that didn't get done.  A garden reflects our lives- always room for growth as well as reflection.

We live in a rain forest. Easy to remember the past few weeks as gentle and not so gentle raindrops fall on the thick redwood duff beneath the trees.  Mushrooms of every color and type poke through leaves still bright with the shades of fall. Last year was pretty dry until March. Not that great for fungi but this year should be spectacular. All the better to continue learning about our local mushrooms. It's one of my favorite goals for the New Year. The fungus fair in Santa Cruz is coming up the weekend of January 11th and I want to be better informed before my volunteer shift as a basketeer arrives.

Each year I pledge to plant more things to eat. Edibles in the garden feed both the body and the soul. They are more than just vegetables and fruit trees. When you grow something you are being a good steward of the land as you enrich the topsoil using sustainable organic techniques. You can connect with neighbors by trading your extra pumpkins for their persimmons. Knowledge of how and what to grow can be exchanged, seeds swapped.
Growing edibles is more that time spent doing healthy physical work it's connecting us to the earth and to each other.

This year I was able to visit gardens in far away places such as Poland to learn about Eastern European landscaping styles and traditions. Some were very different than what we are used to here in western gardens. Gardeners, though, are the same everywhere-eager to show off and share. I also had the opportunity to visit Abkhazi Garden and the famous Butchart Garden in Victoria, British Columbia during the summer. Nothing can prepare you for the wonder that can be created out of nothing. I came back overflowing with inspiration for my landscape designs.

Next I plan to visit Chihuly Gardens in Seattle and a green wall installation in Tacoma. There's no better way to recharge your creative batteries than to see an inspiring garden. Even a walk around your neighborhood can give you ideas for your own garden. I can't tell you how many times I've seen a huge boulder and wished I could magically transport it to my own yard.

New Years resolutions for gardeners should be mere suggestions. Don't get hung up on achieving everything you would like. Your wish list will serve you well during the cold, wet days of winter even if you don't get them implemented. Sure planning a landscape that conserves water will benefit the environment and your budget. And ordering seeds for the spring garden is great therapy for winter blues and future meals. But there's always next year or next month or the summer after next.

Dreaming is more than an idle pursuit. It's good for you and improves the quality of your life over the long haul. So don't worry if you don't get to everything you hoped to accomplish. It's all in the baby steps. We gardeners are eternal optimists. Why else would be plant a tree or a seed or a garden?

Happy New Year from The Mountain Gardener.