Hardiness: USDA Zone 2b: to -42.7 °C (-45 °F) USDA Zone 3a: to -39.9 °C (-40 °F) USDA Zone 3b: to -37.2 °C (-35 °F) USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F)
Sun Exposure: Full Sun Sun to Partial Shade
Bloom Color: Pale Yellow Chartreuse (Yellow-Green) Pale Green
Bloom Time: Mid Spring Late Spring/Early Summer
Other details: May be a noxious weed or invasive Average Water Needs; Water regularly; do not overwater Self-sows freely; deadhead if you do not want volunteer seedlings next season
Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral)
Patent Information: Non-patented
Propagation Methods: From hardwood cuttings From seed; direct sow outdoors in fall From seed; stratify if sowing indoors From seed; sow indoors before last frost From seed; direct sow after last frost
Seed Collecting: Allow seedheads to dry on plants; remove and collect seeds
On Jan 21, 2013, carrielamont from Euless, TX (Zone 8a) wrote:
Ugh. Norway maples have a 250% germination rate in New England. When we moved into our house, there were two tiny trees in the back yard which had carefully been mowed around. By the time we opened our eyes (and joined this site), one was an unnamed Euonymous the size and shape of a huge meatball and the other was a gigantic Norway maple. If I had known what monsters those two would become, I would have yanked them both while it was still possible. The Town has finally cut down the one on the street in front of our house, but not before there a million little trees everywhere.
On Oct 6, 2008, nlafrance3 from Edmonton, AB (Zone 3b) wrote:
Sparse population of Norway Maple exist in Edmonton, Ab but they do well when given adequate water. Do not like naturally arid conditions without the extra water. They grow smaller than in areas such as Toronto or Vancouver because of the shorter grower season. Hardy to zone 3a.
On May 14, 2008, warrendavisx from Haddonfield, NJ wrote:
One of my favorite trees (among the various oaks, maples, hollies, cherries, dogwoods, spruce, pine, willows and cedar on my property). It began as a sapling, which I transplanted after three years to replace a dying oak. After eight years it is just over two stories high and provides outstanding shade from the mid- and late-afternoon sun. Because of its lush foliage, it is one of the most anticipated for leafing out in Spring (along with the beautiful Crimson maple, cherry and dogwoods), and it maintains its lush appearance throughout the hot humid summer. One of the best for withstanding strong storms, it is situated at the least protected spot on my property. I have no problem at all underplanting with garden sage within the drip line, and various from roses to lilacs just beyond the drip line on the sunny side, lawn grass on the shady side. I have trimmed the very lowest branches so that the trunk is bare up to about 4-5 ft, and this has kept the undergrowth happy. The Fall leaf color is bright yellow, and after fallen are easily mulched and added to the compost. The seeds are favorites of the squirrels and are not really a problem. An occasional seedling is pulled, but I seem to see as many wild cherry and elm as maple, neither of which I have grown, from seeds deposited by birds. Speaking of the birds, they seem to enjoy the privacy provided by the tree as much as I do. My neighbors have also planted them conspicuously because of their appreciation of mine.
On Mar 22, 2006, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:
I wish I hadn't plant it in two locations in my yard many years ago. Beside evergreen, it is the hardest tree for planting plants under. Often those plants seem to become dwarfish due to the heavy shade produce by the large leaves. Like with evergreen, I figure the trees are thirsty and suck up any moisture you try to hose on the plants underneath while rains are deflected to either the trunk or outside the tree, even evaporated away from the leaves before reaching the ground. They also look ugly when winter hit earlier than normal, with dry green leaves that is held for a month. It's amazing how much punishment they took in our zone 4 climate but still are able to reproduce theirselves! It make you shiver at the thought at what zone 5 or warmer climate trees are like! They also have shade tolerance, not as much as silver maples. The only other plant that are constantly tormented by our winters but still thrives are buckthorns as they held on to their leaves through December but loses nutrients and other stuff from their leaves before they can absorbs them back in the plant.
I forgot to add that they also seed themselves like crazy! Early Summer 2006 there were a blizzard of seeds from the tree and it still have lots of seeds (thank god most of the seeds is infertile this year) at the time of typing in mid October
The Norway Maple is a horrible tree and no one should ever plant one. It is terribly invasive, and though it is planted in urban areas, it often spreads to natural areas where it decreases the biodiversity of the forest or woodlot and prevents the natural regeneration of native vegetation.
On Oct 19, 2002, Evert from Helsinki Finland (Zone 4b) wrote:
Big leaved maple species. Very common in Fennoscandia and northern Europe. Leaves have beautiful fall colors, they appear in yellow, red, light-purple, and brown, depending on the weather and growing place. Fast growing.
This plant has been said to grow in the following regions:
, Homecroft, Indiana Clermont, Kentucky Frankfort, Kentucky Georgetown, Kentucky Lexington, Kentucky Louisville, Kentucky Nicholasville, Kentucky Paris, Kentucky Versailles, Kentucky Lawrence, Massachusetts Milton, Massachusetts Minneapolis, Minnesota (2 reports) South Saint Paul, Minnesota Haddonfield, New Jersey Jamestown, Ohio Gibsonia, Pennsylvania Elmwood, Wisconsin