Category Archives: fall foliage

color in the garden, colorful foliage, fall foliage, gardening tips, last frost date, trees

The November Garden

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Cercis_Forest_PansyOutside my window, the Forest Pansy Redbud has started to display its spectacular burnt orange fall color. There?s a suet feeder hanging from the branches so I get to enjoy the antics of the Pygmy Nuthatches, Purple Finches and the Chestnut-backed Chickadees all day long as I watch the changing colors of the foliage. Out back I have a Catawba Crape Myrtle also starting to show fall color. Its leaves are turning a rich butterscotch shade which is lovely but not the reddish-orange described in the books. What causes fall color to vary from plant to plant? How does location in the garden, weather, climate and growing conditions affect what you see each fall?

The brilliant fall color we see in the leaves of trees and plants is always there. It?s just masked by Japanese_Maple-fall_color.1280chlorophyll during the growing season as the plant is busy making food while the sun shines during photosynthesis. Come autumn, shorter days and cooler temperatures cause the trees to switch into energy-storage mode, at which point their leaves stop producing chlorophyll. For the few weeks before the leave fall to the ground, they are colored only by their natural pigments. It’s these colors – red and purple anthocyanins and yellow and orange carotenoids that make fall foliage so glorious.

Some years the show is more dramatic than others. The best conditions for intense leaf color to develop are dry sunny days followed by cool, but not freezing nights. A warm, wet autumn will almost surely result in less-than-spectacular foliage because the process of chlorophyll loss will be less consistent. Freezing temperatures or winds meanwhile can cause leaves to drop suddenly denying them opportunity to enter their slow, colorful dormancy. Finally, trees that are under stress because of pests, disease, injury or drought may drop their leaves with no color change at all.

Japanese_Maple-fall_color2.1280So if your garden becomes shady early in the fall this may result in less vivid fall foliage. If your trees are stressed by drought like this year you may not get the usual colorful fall display. These and the above factors all affect the intensity of fall foliage colors.

Now is a good time to shop for plants and trees that can punch up the color of fall in your garden. Seeing your new addition in person will show you exactly what color you are going to get. Sure Autumn Gold Ginkgo will probably always color up bright yellow and Sango Kaku Japanese maples will show off their characteristic golden foliage but the fall color of Purple Smoke Bush, Katsura tree, Witch Hazel, Pomegranate, Oakleaf Hydrangea and Blueberry, to name just a few, can vary.

First Frost
I received an email from someone new to the area about when to expect our first frost. I’ve kept a weather Japanese_Maple_Sango-Kaku_fall_color.1600journal since 1992 and based on my records occasionally we get a light frost at the end of October. Mostly though, the earliest frost has occurred about second week of November with late November being the most common. Be prepared by moving frost tender plants under overhangs if possible or having frost blankets (not plastic) ready to cover delicate plants.

Transplanting in Fall
Need to move a plant or install plants out of containers and into the garden soil? Now through February offers the best time to do this. Soils are still warm at this time of year which helps new roots get established quicker than in later winter.

Prepare the new location first before excavating any plant. Dig a hole twice as wide as the rootball, but just the same depth. Use a sharp spade to make clean cuts through roots. Cut roots will form new, dense and healthy roots.

Before replanting, especially from a container, check for roots that have circled the interior of the pot. These must be tugged loose and straightened when planted. Don’t be shy about loosening roots. When replanting be certain to keep the rootball at the same level it was and don’t add soil over the rootball. Most plants need oxygen at the soil level.

atmosphere in the garden, color in the garden, colorful foliage, Design trends, fall foliage, garden design, landscape design, plant combinations

The Mountain Gardener’s Favorite Plant Combinations

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combination_loropetalum-pieris-dianellaI love my smart phone. I can?t imagine a day without it. A friend of mine told me that I would discover uses that I could only have imagined when I first got it. One of the simple things I use it for is taking pictures. Since I always have it in my back pocket I can whip it out in gardens, nurseries, in the wild or in any landscape that catches my attention.

It wasn?t until I started photographing gardens that I realized the importance of combining plants. So now when I design a grouping of plants that look good together I?m thinking of strong foliage plants, colorful flower spikes alongside soft mounds of foliage and delicate flowers alongside bolder blooms.

With the first day of fall next week I?m thinking of ways that will have any garden bursting with interest for the next few months. These are strategies for combining plants that are adaptable to all types of garden conditions whether you live in the sun or the shade and will also look good in other seasons of the year.

A vignette is a small group of plants that make a pleasing scene because of theirplant_combo2-phormium_CreamDelight-blueFescue-sempervivum complementary and contrasting features. I have several lists of good plant combinations that I regularly refer to when designing a garden. I usually start with a strong foliage plant then add other plants that have interesting texture, form or color.

When you look at a garden that you admire it?s usually the dramatic form of one of the plants that draws you in. When you use a plant with a bold, architectural form it makes a statement. The spiky foliage of Cream Delight phormium alongside a Burgundy loropetalum would make a good combination. Or how about creating a vignette of Festival Burgundy cordyline with Annabelle hydrangea and Cream de Mint pittosporum?

During the next few months plants begin to show soft, fall colors. Combine the fading foliage of these plants with plants that complement each other. The reddish fall color or Oakleaf hydrangea along with the pinkish-tan color of their fading flowers looks wonderful when combined with Japanese Forest Grass as it turns pink before winter. Another complementary fall combination is Royal Purple Smoke Tree surrounded by a bed of Autumn Joy sedum.

OLYMPUS DIGITAL CAMERAStrong colors sometimes contrast instead of blend when plants change colors in the fall. I like to tone down a combination with silver foliage. An example of this would be a plant grouping of Evening Glow phormium, sedum Autumn Joy and Glacier Blue or Tasmanian Tiger euphorbia.

Another way to create a great plant combination is by blending textures. Coral Bark Japanese maple and Plum Passion nandina work well together. Cistus Sunset with Spanish lavender and rosemary is another good combination. I also like a large mass of Blue Oat Grass and Salmon salvia greggii planted together. Santa Barbara daisy goes well with Red Fountain Grass.

My list of potential plant combinations is pretty long as I?ve made notes over the years. Each garden has its own personality and growing conditions. A hot, dry garden might depend on a ground cover ceanothus along with lavender while a shadier garden might use natives like heuchera maxima, iris douglasiana, yerba buena and salvia spathacea. Whatever plants you choose, let them work together to make exciting vignettes in your garden.

destination nurseries, fall foliage, garden design, Pacific Northwest, Puget Sound, trees

Beni Kawa Japanese Maple

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Last fall my sister lost her favorite tree in a windstorm. She lives on Fox Island in the southern part of Puget Sound. I remember hearing about the extraordinary Pacific storm on the national news shattering records in the Northwest. Gusts up to 76 mph closed bridges, falling trees hurt 2 people and thousands lost power. Her Silk Tree didn’t stand a chance.

Won_Yang_JanWhile visiting over the Christmas holiday I thought it would be a nice present to replace her dearly departed tree. Several nice ornamental trees made the short list including the Katsura tree with leaves that smell like vanilla in the fall and Forest Pansy redbud with magenta spring flowers, burgundy heart-shaped summer leaves and reddish-orange fall color. We also considered the native Pacific dogwood but she already had one in the yard. Driving around we started to notice the beautiful color of the Coral Bark Japanese maples in many landscapes and the decision was made.

I knew we would have no trouble finding a good specimen in the Pacific Northwest and I was right. Close Won_Yang_graftsby in Gig Harbor we found Yang’s Nursery and I walked into the realm of a Japanese maple expert. Owner Won Yang opened the nursery to give us a tour of the grounds.? We walked between rows of hundreds of maples and marveled at the huge bonsai specimens of Weeping Katsura tree, Harry Lauder’s Walking Stick, several different conifers and a very impressive, beautifully pruned Oshio Beni Japanese maple all over 20 years old.

Won showed us his greenhouses where he propagates the maples himself. He has been in the business for 30 years so he knows his stuff. Starting with a small green maple seedling with a half inch stem that is cut off 6″ above the ground,? he carefully grafts a tiny tip of new growth from the desired specimen onto the larger stem. It will take at least 3 years before the new tree will be big enough to sell. Won’s pride in his work was apparent as he smiled at the rows of newly grafted maples.

Acer_palmatum_Beni_KawaBack out among the maples, I had my eye on the rows of coral barked Sangu Kaku maples when I saw them. Lined up alongside were several trees with bark so bright I couldn’t believe my eyes. “What are these”, I asked? Won just smiled and told me they were called Beni Kawa Japanese maples and were a cultivar originally developed in 1987. They are prized for their brilliant salmon red bark which is much brighter than the regular coral bark maple. I was hooked. How could I not plant this gorgeous tree in my sister’s yard?

I learned that the bark of this tree can be polished to keep the bright color. Lichen often grows on older trees hiding the salmon red bark of the new branches. I’ll have to try using a soft cloth on my coral bark maple and see how it turns out. The Beni Kawa is a fast growing Japanese maple that will eventually reach 10-15 ft tall and 5-12 ft wide. It is hardy to 15 degrees.

Won grows his trees in a 50/50 mixture of top soil blend and fine crushed bark. He fertilizes with a balanced granular fertilizer and prunes in the winter. The 6 ft tree I bought my sister will not need to be pruned for a couple of years allowing it to establish a strong root system.

I’m looking forward to seeing how the new tree evolves as it grows especially since I know where this Beni Kawa Japanese maple was born.