Monthly Archives: January 2020

pruning roses, roses

Roses in the Garden- Pruning Tips

This beautiful bouquet of mixed roses could be yours, too, if you prune now.

Last fall I designed a garden for some friends after they had a new septic system installed. Little was left of the old garden after the bulldozer left. On Susan and Ken?s wish was a new dogwood, a designated space to grow tomatoes, grasses and a cutting garden. When bare root rose season rolled around Susan got her wish and bought several in her favorite colors: purple, lavender and mauve. They are strongly scented and disease resistant. If you have room for a few more roses now?s the time to get yours in bare root.

And if you haven?t already pruned your roses it?s time to do that too. Here are some tips.

Strike It Rich

Roses are super forgiving so don?t be intimidated by all those rules. Just ask my friend, who shall remain nameless but writes the food column for this paper. Her roses are spectacular.

It?s best to prune your roses before they start leafing out or some of their energy will be wasted. If yours have not dropped all their leaves, pull off old leaves after pruning to prevent the spread of fungal diseases.

Cabbage roses with baby’s breath.

Most of us want our rose bushes to produce lots of roses on a compact shrub and not just a few exhibition size blooms so prune your shrubs moderately. The goal is to keep the center of the plant open for good air circulation aiming for a vase-shaped bush with an open center. Cut out canes that cross, saving the better of the two, prune spindly and diseased stems and dead wood. Also prune canes that appear weak or broken. Healthy canes appear green or reddish while old and dying canes are brown. Cut back the remaining stems by about third. When pruning, cut canes at a 45-degree angle just above an outward facing leaf bud or a swelling on the cane. Slant the cut away from the bud to encourage growth outward. Clean pruners afterward to prevent the spread of disease and keep your pruners sharp to make clean cuts.

Same goes for climbing roses. Cut out extra stems if there are too many and also cut back long established canes to the place where they are slightly thicker than a pencil. Then cut each side stem down to several inches. This will cause the cane to flower along its complete length for a beautiful spring display.

Heirlooms roses such as David Austin, other old antique garden roses, and floribunda roses require less pruning because their open look is part of their charm. Keep this in mind and prune lightly. Old garden roses that bloom once in the spring should be pruned after flowering.

If you have a huge climber de-leafing might not be possible and spraying with fungicide may be your only option if you?ve had disease problems in the past. Rake up the debris beneath the plant and discard to eliminate overwintering fungus spores. It’s a good idea to spray the bare plant, coating the trunk, branches and twigs and the surrounding soil with a combination organic horticultural oil to smother overwintering insect eggs and a dormant spray like lime-sulfur or copper soap to kill fungus spores. If you usually only have problems with black spot you can use a mixture of 1 teaspoon baking soda with a few drops of light horticultural oil in 1 quart water and spray every 7 to 10 days during the spring.

Pruning intimidates some gardeners but when you understand the reasons for making the cuts pruning becomes less daunting. The reasons to prune are for health, appearance and to control size.

Hot Cocoa

Prune your roses throughout the growing season, too. Deadheading or cutting off spent flowers encourages plants to re-bloom. Every time you cut a rose bloom to bring it indoors or deadhead a fading rose, prune the stem down to shape the plant at the same time. Prune to a spot that has at least 5 leaflets. Roses grow from the point where they are cut so consider the overall shape of the plant as you snip.

Don’t worry whether you’re pruning job is perfect. Roses are super forgiving and you can always trim them up again later.

By the way, my friend Susan ended up with a Twilight Zone (dark purple), a Distant Drums (bronze/lavender), an Angel Face (another lavender) and two Mr. Lincoln’s (classic red) which are Ken?s favorite. The Barbara Streisand, which was to be another lavender, wasn?t available.

bare root fruit trees, bare root plants, edibles

Bare Root Edibles

Ginger Gold apples at the Chadwick Garden at UCSC

I live in mountain lion country. With deer high on their list of preferred food choices I?ve opted not to plant fruit trees that would be magnets for the deer. That doesn?t stop me from dreaming about the delicious edibles available during bare root dormant season. Looking over the availability lists of bare root fruit trees and other edibles at our local nurseries I see several new varieties that I?m hoping to find eventually at the farmer?s market.

How delicious does a Sweet Treat Pluerry sound? This is a first of its kind combination with the sweetness of a cherry and the zing of a plum resulting in colorful fruit that hangs on the tree for over a month. Or how about planting a Cot-N_Candy White Aprium from a bare root? This white flesh apricot-plum hybrid fruit tree has incredible very sweet and juicy flavor.

A friend of mine has a fruiting mulberry tree. The first time I tasted one of these juicy blackberry-looking fruits I was hooked. Black mulberries were grown near ancient temples in Asia, Europe and the Middle East, where the trees thrived in the heat, poor soils and drought. They can be grown as a tree or large shrub making them perfect for smaller gardens. I see four varieties available bare root from San Lorenzo Garden Center. Their online availability and descriptions are most helpful and enticing. Did you know that apples and pears can live up to 60 years, apricots have a 70 year life expectancy, plums live for 40 years but peaches and nectarines live only about 20 years?

Shop now for bare root plants while they are still dormant. Even if you want to add fruit trees or other edibles to your garden and the weather has interfered don?t delay. Once leaves emerge or flower buds start to swell the tree roots have already started growing. You want your tree to start developing permanent roots in their new home- yours. Stone fruits such as apricots, peaches, plums and cherries are going to start waking up first so they are best put in the ground soon. Fruit trees like pears and apples wake up later so you can wait a bit longer to plant those varieties.

Don?t plant now in heavy saturated soil with a high clay content. If your soil drains poorly it?s best to place your new bare root tree at an angle in a trench, cover with soil and water in. Then wait to plant until the soil is crumbly and friable with plenty of pore space. Digging in waterlogged clay soil is one of the worst things you can do for your soil?s health.

What?s the correct way to plant a bare root tree? According to research amending the soil is no longer recommended. Mountain Feed & Farm Supply in Ben Lomond has a great web site with all the information you need to get your new fruit trees off to a good start including pruning, staking, mulching and care as they mature.

Cherry trees live 30-35 years bearing fruit in 3-6 years

What fruit tree varieties can you grow here in the mountains? Well, almost everything. Most of us get 700-1200 chilling hours where the temperature is 45 degrees or less during the dormant season. You can give a fruit tree more chilling in the winter but not less. Those in coastal Santa Cruz, for instance, can grow Fuji apples as they require only 300 hours of chilling but not Red Delicious. We can grow both.

What if you don?t get full sun where you?d like to grow fruit trees? Apples, pluots and plums are good choices for an area that gets some sun- at least 5 hours – every day during the growing season. The ideal is full sun but these trees will still set and ripen some fruit in partially shaded conditions. With peaches, nectarines or apricots it?s a different story. These fruits need hot sun to develop sweet, tasty fruit. Too little sun and they will not deliver anything close to what you have in mind.

Don’t miss the opportunity to add a fruit tree or other edible to your garden this winter.

houseplants

RX for Sad Houseplants

Maranta or Red Prayer Plant

Tucked on window sills and tabletops my houseplants clean the air and provide indoor beauty while the landscape outdoors is mostly resting. They are easy to keep healthy if I follow a few tips during the dark days of winter. it?s their time to rest.

A typical houseplant lives in the understory of a tropical rain forest where it gets filtered light. They’re used to warm rain and perfect drainage. We put them in pots inside our homes where they have much different conditions to contend with. Most houseplants will tolerate darker conditions if you adjust your watering to accommodate the slower growth rate.

Water just enough to keep the soil from going totally dry allowing oxygen to move back into the root zone. Let the soil in a 4-6 inch pot dry half an inch down between waterings then water with room temperature water. Don’t let the pot sit in a saucer of water or the roots will rot. If your plant is in a larger pot let the soil dry a couple inches between waterings. A moisture meter is very helpful for larger plants.

Move plants into the best light you have. Even a table lamp will provide light for a plant growing underneath. Remove dust with a moist cloth or place the entire plant under lukewarm water in the sink. Dust blocks light from getting to leaves.

Fertilize less often skipping December and January and starting up again with half strength fertilizer in mid-February. Houseplants are essentially dormant in winter needing fertilizer only when active growth resumes.

Don’t re-pot a plant in winter when they are slow to grow new roots. Replant when the growing season resumes in March or April. Choose a pot only two inches bigger than the old pot each time you transplant. Most plants grow happily for years in the same pot and soil with proper fertilizing and watering during the growing season.

Avoid placing plants in cold drafts near high-traffic areas such as a foyer or hallway. Ficus trees are notorious for dropping leaves when exposed to temperature changes.

Spathiphyllum or Peace Lily can tolerate low light but won’t bloom under those conditions

If you have medium to low light conditions in your house some of the best upright plants are philodendron, peace lIly, Chinese evergreen, cast-iron plant, schefflera, arboricola, ferns and palms. Hanging plants that grow well in low light are heart-shaped philodendron, pothos and grape ivy. Most of these houseplants grow naturally in low light areas of the jungle. Don?t overwater and they?ll be happy.

If you do find insects on your plants, a spray of mild insecticidal soap for houseplants usually does the trick if you do a follow-sup spraying a week later. Horticultural oil works well, too, by smothering insects and their eggs. If you have tiny black fungus gnats flying over the soil, you are watering too frequently. They feed on the algae growing on moist soil. Scrape off the surface, spray with insecticidal soap and let the soil dry out.

houseplants, indoor pollution, pet safe houseplants

Houseplants that Fight Indoor Air Pollution

Bromeliads are just one of the common indoor houseplants that clean the air and are safe for pets.

It?s amazing how many potential pollutants can be found in a home. For most of a winter day, our homes are closed tight with no windows or doors open to let out pollutants and let fresh air circulate. Toxins such as benzene, formaldehyde, and trichloroethylene can be released from furniture upholstery, carpets, cleaning products, paint, plastics and rubber. Carbon monoxide from the incomplete burning of wood and nitrogen oxides from cigarette smoke, vehicle exhaust and smog can also be present in indoor air.

Then there are airborne biological pollutants. These include bacteria, viruses, animal dander and dried cat saliva, house dust and pollen. House mites, the source of one of the most powerful biological allergens, grow in damp warm environments. Mold and mildew grow in moist places like central heating systems and are just one more source of indoor pollution.

Many common houseplants help fight pollution indoors. They are able to scrub significant amounts of harmful gases out of the air through the everyday processes of photosynthesis. The first list of air-filtering plants was compiled by NASA as part of a clean air study published in 1989 which researched ways to clean the air in space stations. As well as absorbing carbon dioxide and releasing oxygen, as all plants do, these plants also eliminated significant amounts of benzene, formaldehyde and trichloroethylene. Other studies added to the list of chemical pollutants and the best plants to remove them.

NASA researchers suggest that the most efficient air cleaning occurs with at least one plant per 100 square feet. Even the microorganisms in potting soil remove some toxins. Yikes, who knew all that was going on right under our noses?

Areca palm and the pothos growing below are easy houseplants to grow.

Some of the easiest houseplants to grow are some of the best to have in the home. Just about all the potted palms are good. Also rubber plant, dracaena ?Janet Craig?, philodendron, boston fern, ficus, peace lily, Chinese evergreen, spider plant, snake plant, pothos, English ivy and phalaenopsis orchids are high on the list of plants that fight indoor pollution.

If you have a cat of dog that you share your home with most of the above plants aren?t safe for them if they are chewers according to the ASPCA website. While all plants clean the air only ferns, spider plants, areca and parlor palms and phalaenopsis orchids from the above list are safe.

Other houseplants toxic for dogs and cats according to the ASPCA are asparagus fern, lilies, cyclamen, jade plant, aloe vera, azalea, begonia, ivy, mums, coleus, sago palm, kalanchoe and rubber plant. Keep your pets safe by keeping toxic plants out of reach.

There are many houseplants that are safe for cats and dogs and every plant photosynthesizes and cleans the air to some extent. Some of the common ones include African violet, aluminum plant, bromeliads, peperomia, areca palm, polka dot plant, cast iron plant, Christmas cactus, chenille plant, creeping Charlie, false aralia, Tahitian bridal veil, wandering jew, goldfish plant, piggy-back plant and the succulents, donkey?s tail and hens and chickens.

With a little planning you can clean the air in your home while keeping the pets safe.

color in the garden, Color of the Year 2020, foliage color, garden design

The Pantone Color of the Year for 2020

Classic Blue agapanthus

Apparently there was some controversy last year over Pantone choosing Living Coral as their Color of the Year because healthy living coral is in short supply. I thought the color coral worked just fine in the garden but this year?s winner is even better. Classic Blue. the Color of the Year for 2020 – is described as a familiar, calming shade of azure and looks stunning in the landscape. It?s the color of the sky on a clear day. And wsho doesn?t like blue flowers or even blue-tone foliage?

It?s always interesting to me that one design client will request a color palette of red, yellow and white while another wants jewel tones or pastels. I like them all.

Don’t be afraid to play with color even if you don’t get it right the first time. Just learn from your mistakes and make adjustments. Whether it’s a pastel Monet garden or a hot Samba garden you want to create, here are some tips.

Warm colors tend to be more stimulating, dynamic and noticeable from afar than cool hues which are more calming and understated. Warm colors advance visually, cool ones recede. So to make a small garden appear larger use cool blues and lavenders in the back with just a touch of scarlet, orange or yellow up close for contrast. Do the opposite to make a large space more intimate – position warm colors at the back, cool colors in front.

Garden colors aren’t static either. They vary with time of day, the season, the weather and the distance from which we view them. Also color perception varies among people and not all people with normal vision see color the same way. Since color and light are inseparable, white, yellow and pastels seem more vivid in low light. In overcast or fog, soft colors like pink, creamy yellow, pale blue and lavender come alive. As night approaches and the earth is bathed in blues and violets, those colors are the first to fade from view.

Hydrangea macrophylla in just one its the shade of blue

Have fun with color. don’t be afraid to try new combinations. I often hear people say “I like all the colors except orange”. Orange naturally combines with blue as these ‘sunset’ colors are opposite each other on the color wheel. Think how nice bright orange California poppies look with blue marguerites or peach Iceland poppies with blue violas.

Foliage is a rich source or garden color. You can find plants with yellow, red, purple, blue or gray foliage as well as shades of green with variegated, marbled or streaked leaves.

And don’t forget white, cream and silver flowers and foliage to brighten up the night garden. White combines nicely with both warm and cool colors so it’s easy to place. It’s an effective peacemaker between colors that would clash if placed side by side. In shady gardens, plants like white bleeding heart, wavy cream-edged hosta, white browallia, white hydrangea, lamium and white calla lily pop at night. Gardens in more sun can plant Holly’s White penstemon, silvery bush morning glory, dichondra Silver Falls, fragrant Iceberg roses white sweet alyssum and Whirling Butterflies gaura.

Plants grow and gardens change over time. Realize that you’re embarking on a journey that may take many years. Have fun getting there.