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[Image] Above is a nice shot I took today of the variegated Japanese sedge (Carex oshimensis 'Evergold') that we have planted throughout our fern & moss garden for color and texture. This sedge is hardy to zone 5 but seems to make it thru our winters fine with adequate snow cover (not a problem in recent winters!). Below is another clumping sedge called brome-like sedge (Carex bromoides) that we planted years ago and I've really liked it's low maintenance and textural contribution in part shade. This sedge is native to a wide range of the United States (including WI) and Canada.
[Image]This morning was our last work day of the year. Marianne and Janice lead a crew of about 10 volunteers out in the gardens. The task was putting lights on all the white pine trees that we cut on Monday, set up on stakes and will use as temporary decorations. The weather was brisk and windy but at least not rainy. Thanks to the ladies for their help and thanks to Luis, Terri, Kay, Maggie, Lynn, Steve, Jody, Marcus, Chris and a young fellow from UW-Whitewater. Larry also was out putting up lights and I ran more cords. There is light at the end of the tunnel.


It wont be long before holiday trees go up in our homes. The debate about the pros and cons of "real" versus "fake" will continue in perpetuity. There is another option; the use of a live tree. This involves bringing in a live tree for a couple of days and then planting it outside after the holidays. There are some tricks to accomplishing this task but there are some garden center and nurseries that will sell containerized or balled & burlapped conifers for this use. See the article I wrote below regarding this option. At the bottom is a recent picture of the blue wood sedge (Carex laxiculmis 'Bunny Blue') that while marginally hardy, has overwintered here and looks great.


This December, it is estimated that over 33 million real Christmas trees and 60 million artificial trees will be decorated in the United States. After the holidays, these trees are either boxed up or dragged to the curb line for disposal. Why not take your Christmas tree out into the yard and plant it? Your investment then goes into the landscape and the sentimental value is there for years of enjoyment.
Live Christmas trees are evergreens that are still in containers or have their roots balled and burlapped. More garden centers and nurseries are starting to offer these live trees in December although they are traditionally more expensive than cut Christmas trees at that time. Typical varieties include Scotch pine, white pine, blue spruce and Douglas fir, although many other species may be available. Brought into the home for a brief time to be decorated and enjoyed, they are then planted out in the landscape. These live trees can be successfully established in the landscape by following some simple rules of thumb.
If you are serious about utilizing a live Christmas tree and have located a nursery that offers them, get out into the yard and dig the hole now before the ground is frozen. Remember that these trees will get quite large so place them accordingly. The north side of the home is ideal for a large evergreen as it acts as a windbreak in the winter and doesn’t cast unwanted shade at that time. The size of the hole should be roughly the depth of the root ball or container and three to five times the width. Ask the nursery for rough dimensions of their root balls or containers or measure yours if you have already obtained a tree. Keep the soil that you dug out of the hole from freezing by keeping it in wheelbarrows in the garage or covering it with mulch outside. Cover the planting hole with plywood or line it with straw to avoid any accidents.
When looking for live Christmas trees, select one with a nice shape and a good-sized root ball or container. Make sure that you select a tree that you like and can visualize as a component of your present and future landscaping. Survival guarantees are typically not offered for these trees due to the intricacies of proper planting procedures at that time of year. Remember that these trees will be very heavy when you take into account the weight of the damp soil around the roots. After selecting a tree and getting it home, you must keep the tree dormant but also keep the roots from freezing. Typically an unheated garage or shed is sufficient for this acclimation period which should typically be at least two days. Keep the roots watered at this time.
There is a very narrow window for utilizing a live Christmas tree in the home as indoor temperatures will start to bring the tree out of dormancy and encourage growth. This translates into severe winter damage when planted outside. These trees must remain dormant and should only be inside for 3-5 days. Ideally, bring the tree in on Christmas Eve day, decorate it and then plant it on Christmas day after removing decorations. Never keep the tree inside for more than a week as its chance of survival when planted outside will decrease significantly. While inside, keep the root ball in a pan or tub with water. Putting ice cubes around the base of the roots will help keep the roots cool while providing water. Check water daily. Keep the tree away from heat sources such as fireplaces, vents, registers and direct sun. Try to locate the tree in the coolest part of the room. The needles can be sprayed with an antidessicant spray to help prevent premature needle loss. If you use lights on the tree, use “cool lights” as some lights will emit unwanted heat around this dormant tree.
After Christmas, remove decorations and take the tree back to an unheated garage or shed for two days of acclimation before planting. Bringing the tree directly outdoors could result in damage from severe temperature extremes. Plant the tree on a mild winter day, making sure to remove ropes, nails, containers or other material from the root area. Make sure to plant the tree an inch or two higher than grade because of settling and then backfill with the original soil. Stake the tree if necessary. Water with warm water and don’t add any fertilizer at this time. Mulch the area around the base of the roots with 12” of woodchips or other mulch to keep the soil from freezing too quickly. Keep watered until the ground is frozen. In spring, decrease mulch depth to 4” and continue to keep watered as needed.
It seems like a lot of work to locate, obtain, maintain and establish a live Christmas tree. It is. However, imagine the year 2040 when your progeny is playing around a 40 foot tall pine tree in the back yard and you can say, “Ah…that Christmas of 2008…I remember when….”
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