Ornamental Grasses

One of the most dramatic sites in a garden is an ornamental grass backlit by late afternoon sun. They seem to come alive as their tawny flowers spikes glow and sway in the breeze. This is what grasses are all about and why they are so popular. Who could resist?

Grasses are versatile plants and come in all sizes, from ground-huggers to shrub-like clumps. Some form upright tufts,  some look like mop-top mounds and others form arching fountains. They easily adapt to the same conditions most garden plants thrive in, rarely needing any special soil, preparation or maintenance. And more subtly, their gentle movement and soft whispering sounds can bring your garden to life as no other plants do.

Grasses serve many functions in a garden. If you want to replace your lawn and save water you can choose from California natives. Some are low like Carex pansa or sesleria while others like Festuca californica make great flowering accents and look their best massed in groups. Other good natives for meadows are Blue grama grass or Boutelous gracilis, Creeping wild rye or Leymus triticoidies, and Alkali sacation or Sporobolus airoides.

Both San Lorenzo Valley Water ( http://www.slvwd.com ) and Scotts Valley Water Districts ( http://www.svwd.org ) offer many tips and incentives to conserve water. There are lists on the website of water smart grasses. Their rebate programs offers several landscaping credits including  converting an existing lawn to water-wise grasses.  Both districts have guidelines and procedures to apply for the rebates on their websites.

My favorite shade tolerant varieties for meadows include red fescue, acorus gramineus or Sweet flag, festuca altissima, bromus beneckenii, and several varieties of carex-divulsa, blanda and texensis.

But it's the showy accent grasses that always gets my attention and Pink Muhly grass has got to be at the top of the list. A must have for the low maintenance garden this ultra-rugged, ultra-tough California native grass is topped in late summer and fall by enormous plumes of cotton-candy pink that can also be used in dried arrangements.

I like variegated plants and two-tone grasses combine well with many other garden plants. Miscanthus sinensis Morning Light is an especially refined and elegant ornamental grass. Fine leaf blades are green with clean, paper-thin, white margins that give the plant a silvery cast when viewed from a distance. It is luminous when backlit by the early morning or late afternoon sun. Morning Light tends to keep its upright shape better than some other cultivars and rarely flops. The reddish bronze plumes that appear in late fall are spectacular.

Another personal favorite ornamental grass is Stipa gigantea or Giant Feather Grass. This semi-evergreen grass grows 2-3 ft high and makes a stately specimen with narrow, arching foliage and shimmering gold panicles that reach 6 feet tall. The flowers open early in June as silvery-purple and mature to shades of wheat. Large plants in full flower are a spectacular sight. Their tufted, clumping form makes them suitable as accents anywhere. It takes drought once established but also will grow with regular garden watering. The beautiful flower spikes are good in dried arrangements.

Caring for grasses is easy. As a rule of thumb, if it browns in winter then cut it back before new growth starts. If it's evergreen by nature just clean up outside leaves. Most like well drained soil and are tolerant of a wide range of garden conditions. You shouldn't fertilize heavily because an excess of nitrogen can lead to lush, soft growth that tends to flop. Mulching with 2" of compost yearly will keep the soil and your plants in good shape. Water grasses regularly during their first year to help get a good root system established. Even grasses that are normally touted as drought-tolerant require a season or two to become fully established.

Gardening Tips for August & IPM

I go out into my garden and look around daily. I pick basil for tonight's bruschetta, parsley for the potatoes and a few Sungold cherry tomatoes that don't make it into the kitchen but are eaten on the spot. I count 10 hummingbirds around my 3 feeders, the Ruby-crowned kinglets are scouring the trees for spiders and other bugs and the Wilson's warblers have found the thistle sock.

But what's this? Some of the fuchsia leaves and buds are curled, there are notches in the impatien balfourii and I see white furry things on the trunk of the crabapple.  The weather is hot one day and foggy the next. Better adjust my watering schedule, too. Whether you're seeing some of these same problems in your garden or have different issues that you don't know how to handle, here are some tips to help you decide what you can live with and what you can't.

Integrated pest management or IPM is a fancy name for common sense. By planting the right plant in the right place you can prevent most pest infestation. Pick your battles.Take action against insects only when they pose a significant threat to your plant.

Plants can usually survive with a little bug damage. Insects that are natural predators often will eventually arrive and handle your bug problem.  Picking them off by hand or spraying them off with water often works, too. Some vegetable plants may need to be protected with insect barriers or row covers. Simple traps for earwigs, slugs and snails are effective, too. Vacuuming is another method of controlling pests. Tilling the soil often disrupts the breeding cycle of insects like the rose slug. Encourage beneficial insects to visit your garden by planting a variety of plants. Use natural biological insecticides like Bt and nematodes that have minimal environmental impact.

If you feel you must spray for soft bodied insects like mites, choose insecticidal soap. This may sound strange but by not killing all the pests there will be some left in the gene pool that are not resistant to the organic or chemical sprays. Those left will dilute any resistant genes that appear.

Regular monitoring is the cornerstone of IPM. This is where that daily walk in your garden with a beverage comes in. You can see if a problem is getting out of control or not.

The fuchsia gall mite is one problem that I keep tabs on or the hummingbirds aren't happy. If your fuchsias aren't blooming and the leaf tips look curled up and deformed, your plants are infested with fuchsia gall mite.  First discovered on the West Coast in 1980 it is often mistaken for a disease because of the way it distorts and twists fuchsia leaves and flower buds.  The damage caused can be debilitating.  The leaves curl and distort so much that normal photosynthesis is disrupted and weakened plants fail to bloom  Infested plants usually recover if further mite damage is controlled.

Prune off all distorted foliage and buds.  This may be the best method of control as petroleum oil or insecticidal sprays need to be made every 4-7 days to disrupt the mite life cycle and will result in the mites becoming resistant. Neem oil is not recommended for use on fuchsia flowers.

There are several gall mite-resistant fuchsias, both hanging and upright, that are every bit as showy as the traditional fuchsia varieties.  if you have been plagued by fuchsia mites, try growing one of these instead. A list from Crescent City Fuchsia growers is available at http://www.ccfuchsia.net/ccfuchsia5.htm.

If you have a problem in your garden and don't know what to do, feel free to email me. I'm always happy to help a fellow gardener.

 

A Garden Reflects it’s Designer

To quote Luther Burbank, "Flowers always make people better, happier and more helpful; they are sunshine, food and medicine for the soul".  After visiting the garden of Bev Kaplan in Boulder Creek I couldn't agree more.

I never tire of being invited to spend time with a fellow gardening enthusiast. Everyone creates a unique garden which reflects their individuality and personality. To share a garden is a personal experience. To tell the story of each part and how it came to life is a special honor bestowed on those we care about. Here is the story of Bev's garden.

Bev and her husband, Jeff, bought the property in 1992. Then it was covered with poison oak and Scotch broom but they saw potential and got started on the dramatic transformation. A huge culvert that runs under the driveway used to be lined with old Texaco 50 gallon drums. Now redone with stone,  it blooms with agapanthus that were being given away by a friend. Groundcovers blanket the slopes now but in the winter the culvert carries a lot of water.

Bordering the driveway are planters built with concrete from the old pool. Her "designer" bearded iris have finished blooming but Bev bragged about the huge 6" flowers that they bear each spring. Deer can reach this part of the property so iris and grasses survive well here.

A steep slope along another side of the driveway is home to her resident deer. She pointed to the wisteria vines growing over the trees. When in bloom they cover the slope with purple blooms and a wonderful fragrance. She started the wisteria 14 years ago from one seed collected from the hamburger joint at the southern edge of Boulder Creek. It took 7 years for it to bloom but now when the seed pods burst they hit the kitchen window a hundred feet away.

Strolling under the Southern magnolia tree with those huge, white flowers that smell like oranges, we passed the "Bottle Garden". Bev explained she just gave up trying to grow anything in this shady area so made bouquets of colored bottles placed upside down in pots. It's charming, whimsical and the ultimate in recycling.

"Maple Lane" was our next destination. Her large Japanese maple collection grows happily alongside abutilon, which are also called Flowering maples.  Hummingbirds enjoy all of the flowers equally be they colored red, orange or yellow. Sweet violets and astilbe find homes here, too.

A welcoming flagstone patio under the shade of massive redwoods held a large firepit and lots of chairs. Calling her home, "Bev's Bread and Breakfast", she explained that many relatives come from out of town to stay and the warmth of the fire ring is welcomed by those who are used to warmer nights. Camellias and rhododendrons enclose this beautiful patio with a view of the San Lorenzo Valley.

Everywhere I looked in this garden, glass beads were sprinkled between stepping stones. Like jewels, I was told these "Pixie Fairy Gems" keep the weeds down and invite the fairies – clear ones brightened up the shade, blue ones nestled between the brick-red stepping stones in the hospital area.

Opposite the hospital area, which didn't house any current patients I noticed, a several bowling balls sat atop a patch of Mexican pebbles. These belonged to her husband's late parents and she wanted to remember them by creating this unusual garden.

Finally arriving at the pool garden I was speechless. This labor of love is a riot of color attracting dragonflies, hummingbirds and songbirds and butterflies by the score. I asked how she takes care of all of it. Bev smiled and pulled out a large serving spoon and a pair of kitchen shears. "With these", she said.

During a delicious lunch of spinach souffle and fresh lemonade with mint, I was surrounded by the fragrance of honeysuckle, star jasmine, scented geraniums, buddleja, nemesia, purple petunia and dianthus. Many varieties of salvia, calibrachoa, scaevola, dahlia and gladiola filled the many pots and hanging baskets around the pool.

Bev takes care of the entire garden with just a little help. She doesn't spray with anything, even organics, preferring to keep bugs at bay by washing the deck with simple green, hand picking and spritzing with the hose.

It was a day I'll always remember. This garden is a personal labor of love and I hope to be invited back to see the hawk babies when they fledge.