Monthly Archives: April 2023

Design trends

Growing Dogwoods

When the dogwoods start to bloom I”m torn between the flowering crabapples and cherries and wisteria and lilacs. But those huge dogwood flowers – or more precisely, bracts – get my attention every time I drive along the thoroughfares of San Lorenzo and Scotts Valley. Most of us are familiar with the common Eastern dogwood but there are so many more great cultivars available now. Here’s some information you’ll find useful if you’re in the market for dogwood tree and how to care for them if you already are lucky enough to have one in your garden.

There are four main species of dogwood trees. From the Himalayas in China comes cornus capitata. Korea is home to cornus kousa. Cornus florida is native to the east coast and the west coast is home to cornus nuttallii or the Western dogwood.

Our native Western dogwood is unfortunately prone to leaf spot fungal diseases when grown out of their range. They are a little temperamental in the garden before they reach the age of 10 years but after that they tolerate seasonal flooding and flower and grow with little care in morning sun or light shade.

We are all familiar with the Eastern dogwood (cornus florida) that’s blooming now. With various shades of pink, red or white blossoms they are stunning. Take note that their root system is prone to disease if not grown with good drainage.

An awesome variety ‘Pringlei’ or Mexican Flowering Dogwood is grown by a fellow gardener and it’s a stunner. With its unusual flowers than look like Chinese lanterns to the red fall color this is a species to be on the look out for.

The Wedding Cake Tree (cornus controversa ‘Variegata’ ) is another unique variety. When this small dogwood blooms the large flowers cover the tree like snow. The tiered horizontal branches resemble a wedding cake when in bloom.

The kousa dogwood is a more drought tolerant, disease resistant and a tougher plant all around. Large, showy flowers open after the tree has leafed out and remain for a long time. This makes it good for hybridizing with other varieties.

The Stella series is a mix of a florida on kousa dogwood rootstock. Vesuvius series is a cross of our native nuttallii with a florida as is Eddie’s White Wonder. There is also a nuttallii-kousa cross called Venus that displays huge flowers and gets its disease resistance from the kousa roots. All these cultivars strive to produce a tree with superior disease resistance and huge, long lasting blooms.

Deciduous dogwoods don’t like wet feet especially in the winter. That’s how they develop fungal disease. But there’s an evergreen dogwood that can handle moisture all year round. Cornus capitata ‘Mountain Moon’ is a tough tree that can handle strong winds and isn’t bothered by any pests or diseases. They enjoy lots of organic matter as do all dogwoods. Huge flowers up to 6” wide can last from late spring into early summer. After flowering, the fruits begin to form and grow into red balls about the size of large strawberries. This is the reason is it also known as the Himalayan Strawberry Tree.

Dogwoods attract a variety of wildlife. All sorts of critters use this tree for food and shelter. The giant silk moth and several species of butterflies favor dogwoods as host plants. The spring flowers provide nectar to bees and other pollinating insects. Robin and sparrow are just two of the bird species that build nests on the horizontal branches and many others seek shelter in the leaves. The high calcium, high fat, fleshy red fruits are eaten by 35 species of birds including titmice, juncos and waxwings.

Many people think of dogwoods as an understory tree but this location is often too shady. Grow them in a full or partial sun location that gets afternoon shade after 4:00 PM. Add a couple of extra drip emitters or inline drip tubing to your irrigation system and they’ll be happy.

Dogwood are a good tree choice for the allergy sufferer as their pollen is not wind borne. Their showy flowers, which are actually bracts, are pollinated by insects. Their pollen is large and heavy, sticking to insects rather than becoming airborne and leading to sneezing, runny noses and watery eyes.

Design trends

Earth Day Facts to Ponder

This year Earth Day is focusing on climate change. Earth Day is always a celebration of the natural beauty of our planet reminding us that we need to keep it healthy. Always on April 22nd, Earth Day is a day of education about environmental issues. So plant a tree, clean up litter, garden, hike in the woods, marvel at emerging wildflowers, be in contact with the soil and breathe fresh air outside on this day.

The affects of climate change have been front and center for us here in the Santa Cruz Mountains. Few of us anticipated that we would have storm after storm hit us – 31 atmospheric river storms starting last December. The intensity and duration of these storms caused record snowfall and deadly flooding. According to UCLA climate scientist, Daniel Swain, there isn’t a clear cut answer as to what caused the wet weather. “It could be anything from Hunga-Tonga volcanic eruption last spring which injected a record breaking amount of water vapor into the stratosphere…it could be an unusual transition from La Niña to El Niño.. it could be bad luck.” Whatever the reason, the effects of climate change are here to stay.

Celebrate Earth Day in your own backyard by being outside. It’s your own personal outdoor living room – a safe place for pets and kids to play. Just get outside, maybe trim some shrubs, plant something for the birds and pollinators. When you become a steward of your own yard, you are helping to preserve you own corner of the ecosystem. Our connection to the earth is one of the most valuable lessons we can share with our children.

In a garden, children can breathe fresh air, discover bugs and watch things grow. And, of course, a garden offers kids and everyone else fresh, tasty homegrown food. What better place for kids to play than in a place where they can use their hands and connect with the earth? Where else can they make a plan for a plot of land and learn the lessons of hope and wonder, suspense and patience and even success and failure? In a garden you can have conversations about life and even death in a way that doesn’t seem so sad.

Finding things to do in the garden is easy. You probably already have some edible flowers in your garden. Tuberous begonia petals taste like lemon. Calendulas are spicy as are carnations and marigolds. Dianthus are clove-flavored, nasturtiums give a hint of horseradish and violas, pansies, hollyhock, squash blossoms and johnny-jump-ups taste like mild lettuce. You can also freeze flowers like violas, fuchsias, geranium, stock and thyme in ice cubes.

Flowers that kids can cut will be interesting for them, too, especially when planted in their own garden. Cosmos, planted from six packs, provide instant color as well as attracting butterflies. Zinnias come in a rainbow of colors and are a favorite of swallowtail butterflies. Another easy to grow flower for cutting is the snapdragon.

Besides flowers, fragrant foliage plants like lemon basil, lemon verbena, lime thyme, orange mint and other herbs engage the senses and can be included in a kid’s garden.

Pet-able plants are a sure hit with kids. Usually we tell them, “Don’t touch”, so to actually have someone encourage this is a rare treat. If your own garden doesn’t have plants that look and feel so soft that you can’t resist petting them, consider adding lamb’s ears which are soft and furry, artemisia ‘Powis Castle’ or fountain grass.

All kids love lady bugs. Make your garden a more inviting place for these and other beneficial insects by planting lots of flowers and herbs to attract them. Lady bugs will patrol your plants looking for tiny insects and their eggs. Flowers with umbrella shaped clusters of small flowers such as cosmos, zinnia, black-eyed Susan and yarrow are favorites of butterflies.

Kid friendly gardens should not contain plants that are poisonous. Sounds like a no-brainer but even some of our common natives like the berries of snowberry and the leaves of Western azalea are poisonous. Non-toxic plants include abelia, abutilon, liriope, butterfly bush, Hens and Chicks, columbine, coneflowers, coreopsis and black-eyed Susan. Better to check the poison control website if in doubt. http://www.calpoison.org and search “plants”.

To share one’s excitement and knowledge of the outdoor world with a child is fun and rewarding. The wonder on a young person’s face as they discover a swallowtail butterfly, a flower just starting to open or a bird feeding in the garden is priceless. And be sure to leave some time after a busy day out in the garden for kids to draw what they’ve enjoyed outside.

Get a kid into gardening and nature and they’ll be good stewards of the land for a lifetime. Plus you’ll have a lot of fun in the process.

Design trends

How to Attract More Bees to Your Garden

I’ve been worried about the bees lately. Can’t be easy being a bee given the severe weather we’ve had this winter. They’ve also had to deal with habitat loss, pesticides, climate change, pests like mites and pathogens such as viruses, bacteria and fungi. What can I do to help bees?

There are 1600 species of native bees in Santa Cruz county. They are solely responsible for pollinating many of our native plants. Being solitary they do not make a hive but make nests underground or live in wood, one female per nesting hole and she lays her eggs there. Leaving areas in your garden near flowering plants un-mulched helps her find a nesting hole. The hard working females mate, make nests, collect pollen for their young and lay eggs. Males live to mate and only pollinate inadvertently when they visit flowers for nectar to fuel their flight.

Common native bees in our area are the yellow-faced bumble bee and the long-horned bee which has stripes a little like a yellow jacket. The hard working bumble bee is easy to identify from its bight yellow facial hair and yellow bands on their backs and abdomens. Female bumble bees’ hind legs widen to form pollen baskets often filled with bright yellow, moistened pollen pellets.

The Long-horned native bee gets their name from the long antennae of the males although the females do not have this. Males may be seen by day jostling for female attention above a patch of blooming plants while the females are collecting pollen. Only the females have branched hairs on their legs for carrying pollen.

Bees eat two things: nectar which is loaded with sugar and is their main source of energy and pollen which provides proteins and fats. Some of the common native plants that are recommended for our area to attract bees of all types include yarrow, columbine, California poppy, coral bells, silver lupine, penstemon, ceanothus, toyon, big leaf maple, mahonia, monkey flower, buckwheat, western azalea and purple sage.

Common garden plants that can attract bees and provide pollen in your landscape and vegetable garden are herbs such as African blue basil, bee balm, oregano, mint, catnip and cat mint, borage, rosemary, chives, hyssop, dill, comfrey and fennel. Edibles that attract bees are blueberry, pumpkin, squash, sunflower, blackberry, hazelnut, artichoke, beans, cucumber and peas. Crabapple, iris, lavender, salvia, aster, coreopsis, sunflowers, monarda, aster, butterfly bush, sweet alyssum, alstroemeria, red hot poker, gloriosa daisy, verbena, scabiosa, coneflower and echium also attract bees of all types.

The higher temperatures that come with climate change can affect a bee’s ability to detect a flower’s pollen. A flowers scent is what tells a bee that nectar is present. If the weather gets too hot the plant will spend less energy on producing fragrance and just try to survive. When flowers stop emanating these enticing smells, some bees have a tough time finding food and may abandon certain area. Studies have shown that warming climates already have affected our central coast bumblebee population during the past 30 years especially the California bumblebee.

In your own garden an abundant and healthy population of pollinators can improve fruit set, quality and size. Crops raised in California depend on both domestic honeybees and native bees for pollination of almond, blackberry, cucumber and artichoke crops.

Honeybees and native bees need help to survive and we’re the ones to give it. Besides planting nectar and pollen sources you can help by buying local honey which support beekeepers. Use only organic pesticides and avoid applying during mid-day hours when honey bees and pollinators are most likely to be out foraging for nectar and pollen on flowering plants and only then if you can’t control a pest with any other methods including Pest Management techniques.

Help save the bees.