Category Archives: Design trends

Design trends

Wisteria Tips

A wisteria pruned to keep size in check on column at Filoli Gardens

Wisteria season is upon us. They are so stunning when in bloom. And I’ve heard it all: “Why doesn’t my wisteria bloom?” or “I planted a wisteria in the wrong place, how do I get rid of it?’ or “I love my wisteria but it’s taking over the porch ?” (insert garage, house, shed or other structure) Seems we either love ‘em or hate ‘em on our own property. Growing somewhere else they are always the stars of the spring garden. If any of this sounds familiar to you here are some tips on how to handle yours.

Wisteria are one of nature’s most resilient survivors. They are able to withstand and recover quickly from difficult conditions. To some they are a little too tough for their own good with a growth rate rivaling bamboo during the summer. If you dream of a wisteria-covered pergola shading your patio here are some maintenance tips that are sure to keep both gardener and vine happy.

Wisteria are so vigorous they can be pruned at any time, keeping them in bounds and clearing out unwanted or dead growth. Prune out any stems you see extending into eaves, windows or shingles. If yours has gotten away from you, you can even prune it down to the ground and start over with training although you’ll have to wait a few years for your vine to bloom again.

A good example of Chinese wisteria-covered pergola

To their control size major pruning is done during the dormant season. Start by trimming the long tendrils that grew over the summer back to about 6 inches from the main trunk. Cutting the tendrils back in this way will initiate flower bud development, neaten the plant up, and show off the attractive trusty, gnarly character of the vines.

Whatever time you do renovation pruning remember the response of the wisteria to aggressive pruning is to literally explode with new runners. They put energy into new vegetative growth at the expense of flowering. Make sure you keep up on ongoing maintenance pruning by removing all unwanted runners right to their point of origin. Then prune back the others to 3 buds or sets of leaves. Repeated pruning of these runners is what will eventually give you spurs of wood, short laterals that in turn will provide you with flower clusters. You need to prune these runners all season long which ends up being every 3-4 weeks.

Do not fertilize your wisteria. They do not flower well if there is an over abundance of luxuriant growth. Over feeding also ends up giving them the means to become un unmanageable monster. If you have trouble getting your vine to flower an application of a high phosphorus fertilizer may promote blooming.

Maintaining a wisteria requires some diligence but the reward is worth the effort. Remember this especially during winter pruning season to make summer maintenance easier. If you find that the wisteria vine has invaded a nearby bed, cut roots with a shovel below the soil line to control any that have wandered.

Which variety of wisteria should you get to cover your arbor, pergola, tree or other structure?

Cooke’s Special wisteria in Boulder Creek

Chinese varieties such at ‘Cooke’s Special’ have clusters of fragrant blue-purple flowers 20 inches long. This variety can re-bloom which makes it a favorite. Chinese wisteria can take up to 20 years to mature enough to produce flowers, but once it has matured, the plant is very long lived and can live up to 100 years.

Japanese wisteria like ‘Caroline’ bloom early with mauve flowers. ‘Royal Purple’. known also as ‘Black Dragon’ , has sweetly scented dark purple flowers. Japanese wisteria are most effective when grown on pergolas so their long flower cluster can hang freely.

American wisteria, native to more eastern areas of the U.S. is a smaller, less invasive species that grows about a third the rate of Asian wisteria. ‘Amethyst Falls’ blooms at an early age with lightly fragrant purple racemes. Use in containers for porch or patio, train up an arbor or trellis or as a small free-standing tree.

Two kinds of wisteria cover this gazebo.

Silky varieties produce a profusion of short, 6 inch, fat clusters of strongly scented flowers that open all at once. They have velvety seed pods and bloom best in full sun.

All parts of the wisteria vine contain a toxin known as wisteria which can cause stomach upset. Growers should also be wary of pets and children eating the flowers or seed pods.

Design trends

Ways to Enjoy a ‘Staycation’

A simple redwood slab is all that’s needed to create a place to enjoy
the shade.

Many of us are planning to spend more time around the homestead this spring and summer. So picture you and your family and neighbors outdoors during your “staycation”– relaxing, cooking on the barbie, entertaining, playing with the kids or maybe just reading in the shade. Maybe you need to make some changes to truly have a relaxing backyard. Here are some ideas to get you started on your backyard makeover.

Make sure you have enough shade in your garden to keep everyone comfortable. Whether it’s several umbrellas that provide the shade, a handmade gazebo, a tree or a combination, no one wants to bake in the sun. Plus your beverage gets hot if left in the sun.

If you decide you need a shade tree in the yard, there are so many good choices for our area. First, determine how wide and tall you want your tree to grow. Next, know your soil and growing conditions. Those who live in sandy areas might consider a strawberry tree, chitalpa, crape myrtle, Grecian laurel, fruitless olive, Chinese pistache, Purple Robe locust, California pepper tree or native oak. Good choices for those who live with clay soil are arbutus ‘Marina’, western redbud, hawthorn, gingko, Norway or silver maple. If you have quite a bit of shade but still need a bit more for the patio area, think dogwood, strawberry tree, Eastern redbud or podocarpus.

What would entice everyone out to the backyard after dark when it’s cooler? How about a simple metal fire bowl set on gravel, brick or pavers? Or how about one of those propane-powered versions? Whichever works in your situation, it’s all about being fire safe.

How about a hidden getaway to read or just sit and relax? All you need is a quiet nook carved out of the larger garden. Place a comfortable chair or love seat on some flagstone pavers, add a table and a dramatic container planted with flowers or colorful foliage and your retreat is complete.

And what outdoor living place would be complete with a cornhole game? Friends of mine take their bean bag toss game everywhere – camping, the beach, poolside or on the patio it’s fun for everyone. Even a rookie can toss, slide or airmail the bag directly in the hole while pushing his opponent’s bag off the board or, as often is the case, pushing it in the hole along with your own. It’s a fun game for all ages and you can easily make a DIY board if you want. Two can play and make a game of it. I had no idea it was America’s favorite backyard game. There’s even a Pro Cornhole Championship on ESPN. Who knew?

After you’ve planted your tree, planned your hidden getaway, set up your corn hole game and sat around the fire pit in the evening, take advantage of the rest of the seasons to enjoy your own piece of paradise.

Design trends

Tasks for the Spring Equinox

Spring blooming trees like this magnolia soulangeana say spring is here.

Spring is in the air, flowers blooming everywhere, birds singing in the trees, bees buzzing in the breeze. What’s a gardener to do on a day like this when just being outside is a celebration of life? On Saturday, March 20th the day and night will be almost equal. That’s why it’s called the Spring Equinox. Some years it falls on March 19th. It would occur on the same day every year if the Earth took exactly 365 days to make a complete revolution around the Sun. But it it takes the Earth 365.25 days on average to go around the Sun once. Whatever the exact date and time it’s the First Day of Spring.

This is what I recommend doing in the garden this month:

  • Check drip systems for leaks or emitters clogged by dirt or earwigs. Flush sediment from filters and check screens for algae. You may need to add emitters if plants have grown significantly and move the emitters farther away from the crown of the plant and out closer to the feeder roots which are under the drip line.
  • Spread fresh compost or wood mulch around all your plants. Good soil is the secret to successful gardening. The first principle of organic gardening is to feed the soil and it will feed the plant. Remember that all gardening used to be organic. Layer 2-3″ of compost or mulch on top of the soil and let it slowly decompose and filter down into the earth. Bark nuggets do not increase your soil’s fertility like compost or wood chips do but they do conserve moisture and help keep weeds at bay.
  • Transplant any plants in the garden that have outgrown their space or are not with other plants requiring the same water usage. Now is a good time because plants are full of growth hormones and recover quickly from transplant shock. As you plant new additions to the garden add organic matter to the soil if it’s sandy. Organic matter enriches and allows it to hold water more efficiently. If your soil is sandy, organic matter will allow your soil to hold more moisture longer. If your soil tends toward clay, organic matter will loosen it and improve drainage. In fertile soil, plants grow deep roots, are hardier for cold, more resistant to disease and more drought tolerant. Organic matter such as compost, planting mix and well-rotted manure boosts nutrition and improves soil structure.
  • Fertilize – Citrus may be looking yellow from lack of nitrogen and iron which is not absorbed easily during the cold season. Shrubs and fruit trees just emerging from dormancy are begging for their first meal of the season. Lawns -if you still have a small section- and ground covers begin their spring growth now also and benefit from a boost of organic nitrogen. Spread a thin layer of compost over everything. Leave grass clippings on the lawn to shade the roots as it get warmer and as they break down they help feed it, too. Perennials benefit from both a fresh layer of compost or composted manure and a light application of balanced fertilizer. They respond to the phosphorus from bone meal especially in the spring for root growth, stem sturdiness and flower development. Wait until azaleas, camellias and rhododendron have finished blooming and you see new leaf growth starting before feeding them.
  • Weed – Pull weeds regularly before they set seed. They pull out easily from moist soil. Weeds rob your plants of precious water. Think of weeding as free gym time. And don’t remind me of how many spiny-ball hedge parsley weeds have germinated all over my property last year. I truly picked every single one before they set seed but November rains have exposed more of the seeds that were down deeper. Oh well, I’m on it and will not be defeated.
  • Check for aphids. They are out in full force sucking plant juices from the tender new leaves of everything from roses to hellebore to Japanese maples. A strong spray from the hose may be enough to dislodge them. If they still persist, you can spray organic insecticidal soap, neem oil or horticultural oil to kill them. As with all pesticide sprays, do this early in the morning or later when they are not in the sun. Be sure to test first to make sure the spray doesn’t burn the new growth and always mix according to the directions.
  • Ants can also bring aphids up into trees and shrubs such as camellias, citrus and roses. Ants feed off honeydew secreted by aphids, scale and other plant-juice sucking insects. Ants also protect these pests from natural predators. To keep them off, wrap trunks with a 1-2″ wide strip of masking tape and coat with a sticky barrier like Tanglefoot. Keep the barriers free of dirt and check them periodically for breaks. Reapply when necessary

Plant cool season vegetable like peas, chard, spinach, broccoli, cauliflower, cabbage, lettuce, onions and other greens. You can also sow seeds of beets and carrots. The soil is still too cold for tomatoes and other warm season vegetables.

The most important to-do is to take time out and enjoy your garden and our beautiful surroundings. Those last few weeds will be there tomorrow but you’ll never get another today.