Monthly Archives: April 2014

berries, birds, California Native Plants, dogwoods, Flowering trees, plant diseases

Dogwood in the Santa Cruz Mountains

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dogwood_RoblesEarlier this year the flowering plums were the first trees to welcome the beginning of spring. Then came the flowering cherries, crabapples, pears, redbuds and lilacs. But now the flowering dogwoods take over as the stars of the show. They are blooming everywhere I go. Whole neighborhoods, lined with dogwood trees, are coming to life.? I? know of several beautiful specimens along Hwy 9 that bursts into bloom this time of year covered in snowy white, pink or rosy blossoms. There are many types of dogwoods and every garden has the perfect spot for at least one. What better way to honor Earth Day 2014 than to plant a tree?

When thinking about where to plant your dogwood tree consider what role you want cornus_florida_closeupthe tree to play in your garden. You might place it where it becomes the main focal point especially during the spring flowering season but also where you can enjoy the brilliant fall foliage. Maybe one located at the back of the garden would be nice drawing the eye along a path and the flowering shrubs growing along the edges.

Dogwoods need good drainage. If your garden has heavy clay soil plant your tree in a raised bed. They make excellent understory trees in high filtered shade if the air circulation and drainage are good. With 2-3″ of mulch dogwoods thrive in full sun, too. The fungal disease anthracnose is not usually a problem here in our summer dry area if drainage is good. Hybridizers have successfully crossed the Japanese dogwood, cornus kousa, with the eastern dogwood, cornus florida, to create the wonderful disease resistant Stellar series. Also the native Pacific dogwood, cornus nutalli, has been crossed with the eastern variety to produce Eddie’s White Wonder. Both are good choices.

cornus_florida_closeup2The beautiful flowers of the dogwood are actually bracts, a leaf-like structure surrounding a flower. The colorful bracts of poinsettias, the magenta bracts of bougainvilleas and the bracts of the dogwood are often mistaken for flower petals. No matter what you call them, the blossoms are spectacular.

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. Robins and sparrow are just two of the bird species than 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.

The fruit of flowering dogwood is poisonous to humans but the root bark was used by Native Americans as a fever reducer, skin astringent, an anti diarrhea agent and as a pain reliever for headache and backache relief. It was also use to counteract the effects of many poisons and as a general tonic. The flowers were infused to reduce fever and relieve colic and several plant parts were used as medicine for blood diseases like malaria.

Because dogwood leaf litter decomposes more rapidly than most other species it has been planted on abandoned strip mines and used for urban forestry projects. The wood is hard, strong and shock resistant, making it suitable for wood products that need to withstand rough use like tool handles, roller skate wheels, golf club heads and knitting needles and spools.

Dogwoods look so great in our area because we get some winter chill.? Some of cornus_capitata_closeupmy favorite varieties include cornus capitata also known as Evergreen or Himalayan Dogwood. It’s a slow growing tree which will reach 20 ft tall after about 25 years and has large white blossoms.

Other common favorites with rosy flowers are Eastern dogwood, Cherokee Chief and Cherokee Brave. Their leaves turn glowing red in fall with fruit lasting well into winter. There are lots of white blooming varieties also and this tree is the parent of the exceptional hybrid Eddie’s White Wonder and the anthacnose-resistant Stellar Pink.

The Japanese dogwood, cornus kousa, starts blooming several weeks later than the Eastern varieties and continues for 5-6 wks. The flowers open along with the leaves which is different than its relatives. This dense multi-stemmed tree grows to 20 ft tall.? With raspberry-like fruits that persist into winter and leaves that turn yellow or scarlet in autumn it’s a beautiful addition to the garden.

Remember a mature leafy tree produces as much oxygen in a season as 10 people inhale in a year. Trees clean the soil and air of pollutants, act as windbreaks and can muffle noises.

cut flowers, fertilizing, flowers, fragrant plants, gardening tips, mulching, pruning tips, roses, watering

Rose Tips and Tricks

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The_Mystery_RoseSurrounded by roses of nearly every color in the rainbow I smelled vanilla, spice and honey. The sun peaked in and out of the clouds allowing the vivid hues of the petals to change with the light. I was enjoying the garden of rose aficionados Mark and Lane Maloney of Scotts Valley. Among their 40 rose bushes I was to learn how an expert cares for these beauties.

The oldest roses in the garden are 60 years of age. Mark dug them from his mother’s collection when she died in Atherton 5 years ago. He starting collecting most of his other roses 20-30 years ago when he and Lane moved to the Scotts Valley property. Because he seldom has a rose die the only new rose in the garden is a double blooming red variety called Legend and named after Oprah. It was just starting to open on the day I visited this amazing rose garden.

I asked Mark which rose is his favorite. It was hard to pin him down to just one. The Distant_Drum_rosegarden is divided into two separate beds. One bed is devoted entirely to roses while another blends roses with other perennials. I admired a large shrub covered with pinkish flowers and he replied “this is one my most beautiful roses. It starts out a deep dusty rose then fades to lighter shades as it ages”.? Most of the roses in the garden have large ornamental name tags that he purchased online. The sign at the base read Distant Drums.

I was drawn to the Double Delight as I know it’s one of the most fragrant. Another rose with an incredible scent is Dolly Parton but on this day it hadn’t opened yet. Mark described it as “big and pink”, which seems appropriate.

Strike_It_Rich_roseDouble Delight, like many roses, blooms in cycles. They set buds and bloom for a month, rest for a month, then set another round of blooms. Mark said he usually gets about 3 cycles per season. One of his favorite roses will bloom all summer non-stop. Strike it Rich lives up to the name with lovely sherbet-orange flowers.

Mark also likes Black Magic with deep, reddish-black blooms that last 2 weeks in the garden as does another of his favorites, Fame, with pink flowers so bright they are nearly iridescent .? With deep yellow blooms Gold Medal caught my attention. But then I saw St. Patrick with those cool greenish-white blooms. Mark told me that in the white rose department he thinks White Lightnin’ is a beautiful rose as is the classic, JFK.

The roses in the Maloney’s garden are lush and healthy. What’s your secret I asked? Mark Perfect_Moment_rosesmiled and handed me a Rose Garden Calendar he had prepared on his computer for me. In a nutshell this is how he does it.
Late December- prune heavily down to about 24″ tall.

Early January- spray roses with dormant spray and again in early February.

March 1- fertilize and repeat each month through September.

Mark uses a systemic fertilizer which keeps insects at bay. He also uses an acid fertilizer once or twice a year as well as putting banana peels on the surface of the soil for potassium. I laughed when he told me his banana peel tip. I was nearly standing on a blackened peel with sticker still intact when he shared this info.

His other “secrets” include picking off diseased leaves regularly, pruning lightly throughout the year, mulching with several inches of chipped wood and watering with 1″ of water per rose each week applied in a trough? surrounding the shrub.

Mark is a member of ARS (American Rose Society) with he suggests as a good source of information and also rose recommendations for different areas and climates. He also maintains the roses at the Scott House at Civic Center. So when Mark talks roses, I listen.

birds, bulbs, butterfly plants, California Native Plants, color in the garden, colorful foliage, cut flowers, drought tolerant plants, flowering shrubs, flowers, fragrant landscape plants, fragrant plants, fruit trees, groundcovers, hummingbird plants, landscape design, perennials, wildlife gardening

How to Design a Perennial Border

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rhododendron_occidentale2.1600When I visit my best friend’s house I park next to the perennial border that lines her driveway. At any given time of year there is something blooming, flowers filling the air with fragrance and juicy apples hanging on the tree for picking later in the summertime. She has some California natives as well as traditional cottage garden plants all mixed in together. Originally from Illinois, she loves a garden filled with lush green and color but has designed the space with plants that can use less water than you would expect and still look spectacular.

What makes for a successful border? You see DIY articles in the gardening magazines showing lovely combinations with rules to follow but they always seem to be for a different climate or location. We often have borrowed scenery from the mixed woods and some of their ideas just don’t work well here. Here are some tips for planting a terrific perennial border in our neck of the woods.

Some of the key players in my friends perennial border are natives like Western azalea, kerria_japonica2hazelnut and flowering currant. These are large, woody shrubs that add height, texture and year round interest. They provide the backbone or structure to the border throughout the seasons and even in the winter. She also has a weeping bottlebrush which is evergreen and provides nectar for the hummingbirds as does the flowering currant. An apple tree and a persimmon tower over all the other plants creating a canopy for the shrubs, herbaceous perennials and groundcovers. You could also plant spirea, weigela, cornus and viburnums to provide structure to your border.

My friend’s border is planted so that there is something of interest every month during the growing season. The persimmon tree is the star of the late fall garden with bright orange fruit that hang like ornaments on the tree. In the spring I can’t take my eyes off the kerria japonica whose graceful shape is covered with double golden, pom pom shaped flowers. The vivid, new foliage of the Rose Glow barberry complements the stand of Pacific coast iris with similar cream and burgundy flowers blooming next to it.? Under the bottlebrush a sweep of billbergia nutans or Queen’s Tears is flowering with those exotic looking, drooping flower clusters. They make a great groundcover under the tree and also are long lasting in a vase.

ompholodes2.1600Mid-sized filler plants that thrive in this border include Hot Lips salvia, daylilies and polemonium to name just a few. Daffodils and tulips have naturalized throughout the space. Groundcovers grow thickly to shade the soil and prevent precious moisture evaporation.? Lamb’s ears like their spot under the flowering currant and the omphalodes have spread throughout the border. This little plant looks and blooms like the forget-me-not but the delicate deep blue flowers don’t produce those sticky seeds that plague both our socks and animal fur.

This border get morning sun and mid-afternoon sun until about 3pm. If you have a situation that calls for all sun lovers you could try asters, shasta daisy, grasses, coreopsis, achillea, echinacea, gaillardia, sedum, kniphofia, lavender, liatris and rudbeckia.? Perennials that work well to attract butterflies and hummingbirds include monarda and my personal favorite, cardinal flower.? Both have long, tubular flowers in bright colors such as red, orange and yellow. it’s easy to have the birds and butterflies coming all season when you plant perennials with overlapping bloom times.

Perhaps some of these plant combinations would look great in your garden, too. Just don’t worry too much about the “rules” of perennial borders. Mix it up. You don’t want the border to look like stadium seating. The idea is to have fun and create a border that makes you happy.

California Native Plants, Deer Resistant Plants, drought tolerant plants, hummingbird plants, low maintenance gardening

Rockrose, Grevillea and Ceanothus for Low Water Use Gardens

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cistus_Grayswood_PInkThere are so many great plants that don’t require a lot of water to look beautiful. It’s always a plus if they attract hummingbirds and other wildlife. Some favorites are so reliable that we consider them tried and true. Who doesn’t want to include more plants like this in the garden? On the lookout for cultivars of old favorites I came across a few that I plan to include this year in my own garden and also in upcoming drought tolerant designs. I’m excited.

Rockrose is a medium sized shrub that works in so many low water use situations. Besides nice looking foliage the flowers of this shrub provide lots of color, too. With soft grey-green leaves and lovely baby pink flowers, Grayswood Pink cistus is a winner. It grows to about 3 feet tall and 4-5 feet across and is covered in blooms from spring to summer and then sporadically through the year. Bees, butterflies and birds are all attracted to rockrose. Leave it to the British to be at the forefront of gardening trends, the Royal Horticultural society gave this cultivar their Award of Garden Merit in 2002.

Rockrose are tough evergreen shrubs but they do not respond to hard pruning. Best cistus_Sunsetto lightly trim each year to control size as needed. They are tolerant of poor soils and are quite drought tolerant once established. Hardy to 15- 20 degrees they survive our winter lows. Other rockrose favorites of mine include the variety Sunset which grows to only 2 feet high and 4 feet wide with bright pink flowers much of the summer. I also like cistus purpureus for its glowing magenta flowers with a red spot at the base of each petal. Its? common name is Orchid rockrose which is Pantone’s color of the year.? Rockroses are deer resistant.

Grevilleas are one of those plant families that have so many types of flowers, growth habits and sizes that they hardly seem to be related to each other at all. Most are native to Australia and so flower during our winter and early spring. They are invaluable nectar sources for hummingbirds and other nectar feeding birds when most of our plants are still snoozing. If you have deer problems plant Rosemary grevillea. Scarlet Sprite is a mounding, compact shrub 4 feet tall by 8 feet wide with soft textured needle-like leaves. The rosy pink and cream colored flowers are showy in winter and spring. It’s hardy to 20 degrees and is similar to Noelii which was once the most common grevillea in cultivation in California but it’s not as prickly and is denser growing also.
grevillea_lanigera_Mt_Tamboritha
If you want a drought tolerant low spreading groundcover to attract hummingbirds plant a Wooly grevillea.? I especially like the pinkish-red and cream spider like flowers of the variety Mt Tamboritha. They grow about 1-2 feet high and spread to 4 feet in sun or partial shade. They are tolerant of moist soil and are hardy to about 18 degrees. The nectar-rich flowers are abundant in winter and spring but they will bloom sporadically during the rest of the year.

We are lucky there are so many ceanothus varieties native to California. From ceanothus_thyrsiflorus_Bixby_Bridgegroundcovers to large shrubs there’s a plant size to fit every location in the garden. Ceanothus thyrsiflorus is one of the shrubs starting to bloom in our area right now. Ceanothus thyrsiflorus grow along a narrow band close to the coast from Monterey to southern Oregon. Growing to 8 feet Bixby Bridge has large sky blue flowers that attract bees and hummingbirds. With large shiny green leaves and those huge flowers it will steal the show in your garden.

There are a few other drought tolerant plants that I have my eye on. They include a new variety of rosemary called Mozart. It has the darkest blue flowers I have ever seen and will grow into a mound 3 feet tall by 6 feet wide. Hardy to 10 degrees it will fit in nicely in dry gardens mixed with lavenders and rockrose.

The new lavender variety I found is called Lavender Silver Frost. Named for its incredible powder-white foliage and dark purple flowers its gorgeous.? At just over 2 feet tall and a 3 feet wide it’ll be beautiful with the rest of dry garden plants.