Development of new trees for the commercial market is a
long and expensive process. A number of native trees, such as bur oak and hackberry, are in limited supply in Manitoba because they are difficult both to establish in the first place and to grow in bulk quantities in large transplantable sizes. Very often, this development work is left up to commercial growers, and they will not take it on unless they can expect to cover their costs and make a profit. However, during its time, Morden Research Station helped fill the vacuum for many years and introduced many new varieties of trees, as well as woody shrubs, in co-operation with private plant growers. Through this joint effort, three common, native, poplar-
family trees became available: a male clone of cottonwood, trembling aspen and balsam poplar. All three trees are very useful and important in naturalized plantings. It would be good to see peachleaf willow added to this
group for riverbank plantings. It is not sold commercially today. (Two other beautiful native trees — the largetooth aspen and ironwood (ironwood can be found at Jeffries Nurseries) — are also largely absent from the commercial sales list but would be excellent on the urban landscape. Urban areas of Manitoba, and many rural areas, have
both natural and modified landscapes. In my view, native trees are not always the best choice for non-natural land- scapes. Many excellent trees that have been introduced into southern Manitoba should be made more readily available to consumers. x Michael Allen
M.Sc.F,. RPF (ret.) is a consulting urban forester, tree diagnostician, certified arborist and owner of Vibernum Tree Experts. He can be contacted at
treeexperts.mb.ca or at vibur- numtrees@
shaw.ca
Proud suppoter of Manitoba Gardeners since 1975
Introductions Here is a list of the non-native (“introduced”) trees
which are growing now in the Winnipeg area or should flourish here.
Black walnut Butternut Bitternut hickory English oak * Honey locust Horse chestnut* Ohio buckeye Black locust* Catalpa Norway maple Red Maple Sugar Maple Amur Cork tree Kentucky coffee tree Gingko* White mulberry* Yellow birch* Pin oak*
Amur maple keys. Amur maple was intro- duced to Manitoba by Frank Skinner.
*Species marked with an asterisk may or may not be grow- ing in the city or be readily available at local nurseries.
Thanking all our customers for a wonderful season, hope to see you again next year!! Reopening Mothers Day 2017
Corner of Henderson & Chief Peguis 204-339-7163 •
Petraskos.ca
OPEN ALL YEAR ROUND
Hours Nov. 8 – Nov. 22: 11:00 am to 2:00 pm Tuesdays and Saturdays Nov. 25 through Christmas:
M-F 10:00-7:00 | Saturday 9:00-6:00 | Sunday 10:00-6:00
localgardener.net Closed for the Season
Phone/Fax is 204-623-5535 or cell is 204-627-0212 636 Carrot River Valley, Hwy 283, The Pas, MB
Fall 2016 • 59 Like us on
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