Category Archives: Design trends

Design trends

Watering 101

This combination of Safari Sunset leacadendron, Guardsman phormium and succulents has low water needs.

Is your garden starting to look a little bedraggled? After a few hot spells, have the plants in your yard gotten a taste of what?s to come for the rest of the summer? After you?ve chosen climate adapted plants how much water do they really need? Here?s how can you keep everything happy and not waste water.

All plants need water- even those that are tolerant of our summer dry conditions. Water makes up 90-98% of every plant we grow. It’s needed for photosynthesis, as well as reproduction and defense against pests.

With summer water bills arriving this is a good time to re-visit how often and how much to water that landscape you?ve spent so much money to create. Basically, you?re wasting water if you?re not watering deep enough to moisten the entire root ball or if you?re irrigating too often.

Photosynthesis is one of the most remarkable biochemical processes on earth and allows plants to use sunlight to make food from water and carbon dioxide. At temperatures about 104 degrees, however, the enzymes that carry out photosynthesis lose their shape and functionality. A garden that provides optimum light and water but gets too hot will be less vigorous.

Plants have natural systems that respond to heat problems. Plants can cool themselves by pumping water out through the leaves for a kind of swamp cooler effect. They can also make ?heat-shock? proteins which reduces problems from over heating. All these strategies can take resources away from a plant?s other needs like growth, flowering and fruiting.

So how much water do different types of plants need during the heat of summer?

Be sure that you water trees and shrubs deeply, checking soil moisture first with a trowel. Established small to medium shrubs should be watered when the top 3-6 inches of soil is dry. Water large shrubs and trees when the top 6-12 inches is dry.

As a rule of thumb, trees and large shrubs need deep but infrequent irrigation. They should be on a separate valve than your smaller shrubs and perennials. Water ornamental trees 1-3 times per month depending on the type and soil. Tree roots grow 24-36 inches deep or more and require 10 gallons of water per inch of trunk diameter.

California native mimulus auritanicus

Apply water with a soaker hose, drip system emitters or hand held hose with shut off and soft spray attachment according to your water district?s restrictions. Don?t dig holes in the ground in an effort to water deeply. This dries out roots even more. Be sure to water the root zone to the indicated root depth every time you water. Watering deeper than the root zone only means you are wasting water. You can test how deep you watered by pushing a thin, smooth rod into the ground soon after you irrigate. The soil probe should easily slide through the wet soil but become difficult to push when reaching dry soil.

The roots of smaller shrubs reach 12-24 inches deep in the soil. Established native shrubs may need only monthly watering to keep them looking their best while other shrubs may need watering every 7-10 days during the heat of the summer. Perennial roots only go down 12 inches or so and may need watering once or twice a week depending on type.

When is the best time to water? Watering in the morning is the most efficient whether you water by sprinkler, drip system, soaker hose or by hand because the water soaks deep in the soil without risk of evaporation. This bolsters the plant for the day and has dried from leaves by evening reducing the risk for foliar diseases like mildew. Plant roots are also more receptive to watering in the morning.

Is it true that water droplets will scorch leaves in the midday sun? According to a study, fuzzy-leaved plants hold water droplets above the leaf surface and act as a magnifying glass to the light beaming through them so there is a very slight chance of scorch.The study also reported that water droplets on smooth leaves, such as maples, cannot cause leaf burn, regardless of the time of day. But no matter the time of day, a plant that needs water should get the right amount.

climate smart plants, Design trends, plant communities, plants for summer dry climates

Knee High by the Fourth of July

A black-tailed deer celebrating the Fourth of July.

Who doesn?t love corn on the cob fresh either from the garden or farmer?s market? But this column isn?t about growing corn or about patriotic deer, it?s about climate smart plants that hold up to the heat. So let?s get started.

All this talk about ?drought tolerant? plants or ?water smart? plants is misleading in some ways. What really matters for the success of a plant in your garden is that they are climate smart. You can call the new California garden climate tolerant or climate adapted but it all comes down to the same thing. The plants you choose to grow in your garden should be able to naturally tolerate periods of lower than average water. This doesn?t mean no water during extremely long dry periods. No plant can live without water.

I have two books that I look to for plant ideas when called upon to design a garden in our area. This first was published by East Bay MUD in 2004 and is called ?Plants and Landscapes for Summer-Dry Climates?. The other book I refer to regularly for ideas and information is ?California Native Plants for the Garden?. Both are invaluable in these times of water conservation. One of the best tips each of them offer is to garden where you live.

All of us live in a summer-dry climate. Summer-dry gardens are naturally dry for long periods. Knowing which type of plant community you live in can make the difference between success and failure in your garden. Choose the right plant for the right place whether it?s a California native from an area with similar soil and exposure or a plant from another Mediterranean-like climate with growing conditions like yours.

Plant communities have evolved over time with geologic changes in climate, topography and soils. We have several district areas here- mixed evergreen forest, redwood forest, chaparral and sandhills.

If you live in a mixed evergreen forest you garden with trees like coast live oak, tan oak, madrone, bay and buckeye. Understory plants include ceanothus, coffeeberry, hazel and poison oak. Your soil contains serpentine and granite. Many other unthirsty plants like salvias, lavender, santolina, society garlic, giant feather grass, rosemary and rockrose do well here. California natives such as western mock orange (philadelphus lewisii), wild ginger and western sword ferns grow here also.

Mixed evergreen forest may also be found along canyon bottoms near streams where big leaf maple, white alder, cottonwood, and western sycamore trees grow. Most plant here grow lush in this deep soil. If you are looking to add something new to your garden here consider giant chain fern, aquilegia, dicentra, Pacific Coast iris and fuchsia-flowering gooseberry.

Found in the sandhills, silverleaf manzanita is perfectly suited to its environment.

Chaparral areas are the hottest, driest slopes of these mountains. Dense thickets of manzanita, coyote brush, chamise, coffeeberry, ceanothus, monkey flower and sage are native here. These plants are adapted to little water and often have tiny, thick, waxy, light green or grayish leaves. Soils tend to be rocky and shallow with overlaying rock or a subsoil that is mostly clay. Plants here need to have an extensive root system that reaches widely and deeply for water. If you live here a classic combination would be the spring blooming western redbud and Julia Phelps or Dark Star ceanothus. The combination of magenta and electric blue flowers is unforgettable.

The sandhills near Quail Hollow and Bonny Doon around Martin Rd. are part of an ancient sandy sea floor that was uplifted, eroded and exposed. These sandy soils lack organic matter and nutrients and their white color magnifies the temperature of the summer sun. Unique, native plants like silverleaf manzanita and Ben Lomond wallflower live here. Buckwheat and sticky monkey flower do well here. You might also try growing Lewisia, a pretty little plant native to northern California, thrives in sand and gravel soils with good drainage. This 8″ tall hardy perennial blooms from spring to early summer with extremely showy flower clusters in colors ranging from apricot to pink, rose and bright cherry red. Mulch them with gravel or crushed stone.

Remember right plant-right place. Don?t try to force nature although most gardens do look better with some summer water. Closer to the house we expect a fuller look. Combinations I?m going to try this season include leucospermum paired with blue echium or grey-leafed westringia planted with red-flowering callistemon ?Little John?.

atmosphere in the garden, decks and patios, Design trends, fragrant plants, garden rooms

Ways to Make a Garden Interesting

Where?s your favorite place to hang out when you?re at home? For many of us relaxing on the patio or reading under a tree is our go-to place. Grilling on the barbecue or sitting around a fire pit is another favorite outdoor activity. For kids and adults who enjoy sports or games it?s the play area that gets all the attention. And for veggie gardeners it?s harvesting and cooking up a delicious meal from produce you?ve grown yourself that?s high on the list. Whatever you like to do in your yard there are simple ways to give your garden a makeover and make your outdoor area more inviting.

Recently I got lost in Boulder Creek looking for a client?s house on the river. I peeked through an arbor and into a small garden surrounded by shade trees and flowers. A couple sitting at a bistro table were enjoying a late lunch. They were kind enough to direct me to their neighbors house which was right next-door. Seems I wasn?t lost after all. I?ll never forget the lovely table this couple had set on their small patio. With a bright tablecloth, colorful stemware and what appeared from a distance to be a luscious fruit salad the scene would have looked right at home in Sunset magazine. These people knew the importance of extending their living space into the outdoors. They told me they enjoy this every weekend.

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Pocket size sitting area

Create atmosphere in your garden. Make sure the entire garden can?t be seen in one glance. A garden room is defined by borders and enclosure. That?s what made the secret garden I discovered by accident in Boulder Creek so effective. It was partly shielded by the canopy of a tree. I?m not sure what the vine-covered arbor at the entry was made of but you could make a rustic arbor yourself from downed branches. Short fences with a gate can enclose your garden room also. Even just a gate between shrubs will blur the garden?s boundaries as will a curved path that leads behind tall shrubs or sheer perennials.

Creating an outdoor room with vines will make your yard feel cozy. They readily provide the walls to enclose a space. Views from one part of the garden may be partially open, framed by vines or blocked entirely. Shrubs can also be used to create garden rooms but vines form a thin living wall that is quickly established. Creating boundaries with vines also adds vertical design elements to an otherwise flat landscape. By adding walls and a ceiling to your garden, you?ll be able to enjoy another dimension in addition to more color and fragrance.

Garden lighting is another easy way to add atmosphere to your garden. As inviting a space a garden might be during the day it becomes magical at night when lit. Solar lighting has come a long way. Walk your property and decide the most effective spots for lighting. Pathway lighting can illuminate the driveway, walkways and steps and mark the edges of areas like ponds and patios. Accent lighting can define a space and show off plantings, benches or illuminate a pergola. Spotlights direct the eye up into trees, show off garden art or accent a focal point.

Each of the senses comes into play in a successful garden. The sense of sight is an easy way to create atmosphere. Use the colors and textures you most admire and repeat them. A green framework holds the garden together but color creates the mood. Whether you like vivid saturated colors or soft pastels broad sweeps of color are more effective than dabs and patches.

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Urn fountain

Sound is important too. In my own garden I have several wind chimes. Ornamental grasses rustle in the wind and adding a fountain with running water is high on my wish list. An urn fountain with pebbles and plants at the base would be a simple choice. A drilled basalt column fountain or basalt dish fountain would look natural in the forest here. But until Santa comes I?ll be content with adding another rustling grass to my garden.

Your sense of smell is important also to create atmosphere in the garden. In the spring the smell of ceanothus fills the air. Then the stargazer lilies start to bloom followed by lily-of-the-valley, daphne, flowering crabapple, carnation, iris, heliotrope, lavender, alyssum and a couple of roses. By enjoying the fragrance of both flowers and the foliage of salvia, lavender and breath of heaven as I walk the garden I?m able to add another dimension to the garden.

Home is where the heart is. There?s no place like home so make yours even more inviting.