Blue Flowers in the Garden

July 13, 2011 Jan Nelson Leave a comment

Nature’s favorite color is a washed out magenta. It’s the original shade of many plants and the one hybrids will revert to if they go to seed. Petunias, garden phlox, sweet peas, nicotiana and foxgloves, for example, will all revert to this shade. The favorite color of many gardeners is firehouse red, the winner among tulips, zinnias, dahlias, salvia, impatiens and begonias by a wide margin. Orange and yellow come next, then pink, with blue and white, both comparatively rare in nature, last on the list.

So naturally, come of us gardeners want the elusive blue flower in our garden. Call us garden snobs. Or maybe we know that cool colors recede. When placed around the edges or at the back of a garden they make the space appear wider or deeper.

True blue flowers are rare. We use words like cerulean, azure, cobalt, sapphire, turquoise, electric blue or steel blue when describing blue flowers. Hybridizers have tried for years to produce a true blue rose or blue daylily. Because blue plant pigment is hard to manipulate, Donald Wyman, author of Wyman’s Gardening Encyclopedia explains "Blue, since it occurs in the daylily as a sap-soluble pigment, will be difficult-perhaps impossible to segregate. Lilacs, purples, orchids, mauves we have; and working with them we may eventually get near blues, but pure blues probably never." Recently, some companies have found a way to insert some blue in the center of their daylily flowers but a totally blue daylily has never been produced.

Rose hybridizers striving for true blue have come close by crossbreeding lavender hybrid teas in order to produce offspring having optimum amount of cyanidin, . The results have been more of a silvery lilac or mauve. A blue rose is still in the future although labs in Australia and Japan are genetically modifying the pigments from petunias to produce a blue rose. Their results are not yet perfected and these roses are more of a lilac in color and can not survive conditions outside the lab. It is apparently very difficult to isolate the pigment cyanadin. Delphiniums have a monopoly on it and so far aren’t giving up any of their secrets.

The color blue is calming and tranquil. It is the color of serenity and peace and is said to slow down the metabolism and reduce the appetite. When brightened with white or combined with yellow or orange in a complementary color scheme the results of blue in the garden are breathtaking. The great English gardener Gertrude Jekyll liked to use plants with golden leaves or clear yellow flowers to spice up blue gardens. Just remember that blues and purples are the first flowers to fade as darkness falls so be sure to have those whites and yellows to carry your garden into evening.

There are many blue perennials as handsome as they are durable that we can enjoy in our gardens today.
Some of my favorites are old fashioned hydrangeas and campanulas. Both are valuable in the shade garden along with omphaloides and brunnera. The blue spikes of a long blooming peach-leaf campanula just go together with the white and green variegated foliage of Jack Frost Siberian bugloss ( where do they come up with these names )?

In early spring we are dazzled by our native ceanothus which bloom with deep blue, sky blue or electric blue flowers. Emerald Blue phlox subulata carpets the ground in spring with deep blue flowers that top creeping stems. Penstemon Blue Springs, a California native hybrid, carries dense spikes of bright blue, bell-shaped blossoms.

butterfly plants

Coreopsis for the Garden

July 7, 2011 Jan Nelson Leave a comment

If you’re like me it’s fun to be out in the garden planting, tending and watching the garden grow. I love to add a new plant to a container or perennial bed. Planning, choosing and finally bringing home a new addition are all part of the fun and there are so many low water use colorful perennials to choose from.

Members of the sunflower family, coreopsis attract butterflies and bees and bloom all summer. In addition to the favorite Early Sunrise, try the dark-centered Tequila Sunrise with variegated cream and yellow foliage. Their foliage has touches of pinkish red in spring and deeper red in fall. Then there are types with finely divided leaves like Moonbeam and new varieties such as Mango Punch. Rusty orange flower with hints of yellow cover these low growing perennials. The color is rich and blends with many color schemes. Or try coreopsis with coral pink flowers on yellow green lacy foliage. Add one of these deer resistant perennials to your garden and make the butterflies and bees happy, too.

drought tolerant plants

Drought Tolerant Olives

July 7, 2011 Jan Nelson Leave a comment

Summer has finally arrived. Took a while- a long while this year- but now we can enjoy nice weather and our beautiful gardens. The extra rainfall has allowed many trees, shrubs and perennials to grow lush and full like never before. As summer heats up think about adding drought tolerant plants especially in areas that are hard to water.

Plant an olive tree. They take the heat and are drought tolerant once established. Olives are easy to care for. They require little pruning and have few serious pests. Their grayish foliage and graceful, billowing appearance are a welcome accent to an all-green garden. The attractive gnarled branching pattern is also quite distinctive and they can live for 500 years.

For ornamental purposes or next to paving, choose a fruitless variety like are old favorites. Olives can be traced originally to southern Turkey in about 3150 BCE. The spread of the olive tree to the Mediterranean areas of Italy, France, Spain and Portugal probably coincided with the trade of wine, date palms and figs. They were introduced to California mission gardens in the 1700’s for the oil their fruit produces. Many of the missions still have the original olive trees. Underplanted with drought tolerant perennials like sedum ‘Autumn Joy’, yarrow, lamb’s ears, mimulus, Santa Barbara daisy or agastache they can be a focal point in any garden.

fertilizing

Fertilizing – What, How and When

June 25, 2011 Jan Nelson Leave a comment

I have to chuckle when I see someone admiring a basket of blooming fuchsias. "How do they get them to bloom so much?", they say. I tell them you have to fertilize regularly like the growers do. "Oh, you have to fertilize?"
Yes, plant are living things with basic requirements just like us. Here are a few tips that can make it easy to have those lush, bountiful blooms you see in all the magazines.

There are lots of ways to fertilize and many kinds to choose from. Some plants, like established trees and shrubs, need little help from us as long as they exhibit normal leaf size, color and desired growth. Young plants and fruit and nut trees, especially those growing in infertile soil, may grow more quickly, however, after fertilization. is usually the only nutrient to which woody plants respond. Slow release fertilizers are better because a fertilizer that releases nutrients quickly can injure plant growth if applied too heavily or incorporated into the planting hole.

A common way to destroy the microbiology of the soil is to add salts ( non-organic fertilizers ). The salts kill the good bacteria and fungi by dehydrating them. Then the plant can’t feed itself and becomes dependent on its fertilizer fix. Without the good bacteria and fungi in the soil other parts of the food chain start dying off as well. Rapid growth from excess fertilizer can cause bark to crack allowing entry of fungi. Too much fertilizer also promotes excessive succulent foliage which can increase pest populations that prefer tender new growth.

As a general rule, California natives thrive in nutrient-poor soils. You probably will not need to fertilize on a regular basis, even with organic fertilizer, unless your soil is severely depleted or if the plant you are trying to grow only occurs naturally in soils with much higher fertility.

If you decide to add nutrients to the soil around natives or established trees and shrubs, the best time is when the plants are actively growing. For natives this is late fall to spring. for other plants late winter to late spring is best. Choose from organic fertilizers such as compost, chicken manure, bat guano, blood meal, cottonseed, kelp, feather or fish meal. Organic fertilizer is also available in bags or liquid and usually contain humic acid and beneficial soil microbes. Most organic forms of nitrogen must decompose before being absorbed by plants and are therefore slow acting, remaining in the soil longer where they are stored until needed by the plant.

What about those fuchsia baskets- what is the best way to fertilize them? Containers that are watered regularly will need to have nutrients replenished as they leach out with each watering. Nitrogen especially washes out of the soil. A nutrient-deprived plant can’t produce flowers which is its whole purpose in life. The more flowers, the better chance to reproduce.

Fast acting inorganic liquid or granule fertilizers are like candy bars for a plant. Their nutrients are immediately available and this capability can be useful if a plant is stressed due to pest infestation or has lost leaves and vigor. Slow release fertilizers, like Osmocote, although inorganic are available to the plant over a much longer time. Their nutrients are released depending on soil temperature so as our days warm, the soil does, too, right when your plants are vigorously growing.

Perennials fall somewhere in the middle in their nutrient requirements. Drought tolerant perennials don’t require heavy feeding. A fresh layer of compost and a light application of organic fertilizer in the spring are all that they need. Other perennials will benefit from another application or two of fertilizer in addition to fresh compost. As the plant absorbs nutrients through its roots, it can’t ell the difference between an organic and an inorganic fertilizer. However organic fertilizers are less likely to burn plants, especially when it’s hot. They feed the soil and its microscopic organisms not just the plant and won’t contaminate the ground water.

Remember you can kill a plant with kindness so follow the directions on the label whatever type you choose.

roses

Roses for the Santa Cruz Mountains

June 25, 2011 Jan Nelson Leave a comment

The weather this year has agreed with my roses. It may seem like we’re living in England lately, but the roses have appreciated the cool, moist spring- all the better to set lots of buds without a sudden heat wave to ruin the show. Every rose lover I’ve talked to is raving about the quality, quantity and extended bloom time for their roses.

Roses are available in so many shapes, sizes, colors and fragrances that almost every garden has a place for at least one. They provide structure and proportion to the landscape and are among the most showy and hardworking of all garden plants. The rose was selected as our National flower in 1986. England may have a few years on us in this department as it’s been their national emblem since the Wars of the Roses in 1455.

Who grew the first rose? Fossilized plants over 30 million years old can be linked to modern rose species. The Chinese were probably the first to cultivate roses, however. Five hundred years BC, Confucius wrote of roses in the Imperial Gardens. Roses have been under cultivation in China before they were introduced to the European market in the late 18th century. The ancient Greeks cultivated roses extensively. The Romans imported roses from Egypt. They also established a thriving rose-growing industry south of Rome forcing them into bloom during the winter in greenhouses and irrigating with warm water.

In the genus Rosa there are over 150 species or styles of roses that have specific characteristics. These species roses are plants that grow in the wild and from which all other roses are descended. Hybridization happens in nature by bees and other insects but man has taken the process to an intricate art and hybrid roses now account for over 1000 different kinds. From old garden roses like Damask and Bourbon to modern roses like hybrid tea, floribunda and grandiflora to tree roses, climbing roses, miniatures, the choices are endless.

Which types grow well here? From my own experience and that of other designers and rose aficionados, my
all-time favorite is the popular Sally Holmes. It’s disease resistant, everblooming, handles our summer heat and winter cold with ease and has few thorns. Large, long lasting clusters of single peachy-white blooms cover this 10 ft spreading shrub that acts more like a climber. Because the flower is simple in form and doesn’t contain many petals it can handle foggy, cool conditions and resist fungal diseases.

English roses, like Golden Celebration, need warmth to perform well. With 5" blooms of 50+ petals, they are reliable if you get lots of heat. Same goes for the rich, golden-yellow Graham Thomas rose. Both are fragrant.

Roses that I have found to bloom in shady conditions are Ballerina, a wonderfully fragrant, small, pink hybrid musk rose. Dense, hardy and vigorous it’s easy to grow. I also grow the magenta climber, Zepherine Drouhin, in the shade. It grows to 8-12 ft tall and has a strong raspberry scent. Iceberg performs well in part shade, too, with large, double, pure white blooms that scent the air with a rich, honey perfume. I like that it’s thornless, too. I’ve been told that the miniature, Gourmet Popcorn, also tolerates shade.

Deer love to eat roses. Even roses with terrible thorns have susceptible new growth before the thorns have had time to harden. The new growth also has an increased amount of nutrients. I’ve heard that Rugosa roses are fairly deer resistant and well as The Fairy. Hope springs eternal.

This column is not long enough to go into the best way to plant and grow roses. But if you have a choice, it’s best to plant them where they receive at least morning sun as this allows the foliage to dry before fungus spores take hold.

Every garden or patio has a place for at least one wonderfully fragrant rose.

color in the garden, hummingbird plants

Color your Garden-Every Month of the Year

June 10, 2011 Jan Nelson Leave a comment

I don’t know about your plans for the summer, but I’ll be sticking close to home. What with the price of gas and groceries, I’m planning a couple of camping trips in our great state. I guess you could say I’m going to be enjoying a "staycation".

With my attention directed more to the home front, I want to focus especially on making sure I have color in my garden every month of the year. I love my so I want to fine tune my containers and plantings so they attract as many of these small wonders as I can.

While making an entry in my journal recently, noting the progress of my pet trees, shrubs and perennials, I was struck by the realization that I don’t have enough color in my garden in the month of May. You’d think "April showers bring May flowers" would have done the trick but our cool weather has slowed things down a bit. I love my white calla lilies, Doublefile viburnum and bleeding hearts but all that white is a little too quiet for my tastes. I was sorry to see my vivid late red tulips finally drop their petals in the rain. Their absence leaves a void I plan to fill right away. I want a few hot samba colors to punch up my landscape.

I like many color combinations. I could go with pale orange with white. They look great together. If I choose a variegated salmon Abutilon ( Flowering maple ) as a focal pint, I might pair it with orange calibrachoa, a rust colored coleus, bonfire begonia, Gartenmeister fuchsia and a Catlin’s Giant ajuga to tie it together. They’ll bloom all summer and the fuchsia attracts hummingbirds, too. If you garden in the sun, you could use an orange geranium, Terra Cotta yarrow, orange coneflower, agastache or a wallflower with Evening Glow coprosma instead of the begonia and fuchsia.

Burgundy and gold are energetic opposites that never fail to catch the eye. When two colors are complimentary it means they bring out the best in each other. Their hues bring a sense of majesty to any garden. Plants that can be considered gold lie in a narrow band of color, ranging from pure yellow to chartreuse. It brightens shady spots and creates a great background for the burgundy. Did you know that the color yellow sit right in the middle of the light spectrum visible to the human eye. It reflects more light that any of the other colors? That must be why I have so much of this shade in my shady garden. It really livens up the place.

Here are some successful vignettes demonstrating eye-catching possibilities for any garden.
The smokebush is looking especially vibrant this year in the cool weather. It would pair well with a spirea Goldmound or Limemound. Add a phormium Jester, Roseglow Japanese barberry and a Sapphire blue oat grass to cool things down and you’ve got a winning combination.

Or how about a Bloodgood Japanese maple surrounded by All Gold Japanese forest grass, Festival grass cordyline or a Yellow wave New Zealand flax? Bearded iris come in every color of the rainbow and a purple and gold one would fit it perfectly. You could also add a Diamond Heights ceanothus and a pale yellow or red mumulus for the hummingbirds.

Whatever colors you choose kick it up a notch and make sure you have blooms and hummingbirds all year in your garden.

Gardening Tips for the Santa Cruz Mountains