Hardiness: 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) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure: Full Sun Sun to Partial Shade
Bloom Color: Red Chartreuse (Yellow-Green)
Bloom Time: Mid Spring
Foliage: Grown for foliage Deciduous Good Fall Color
Other details: Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods: From woody stem cuttings From softwood cuttings From semi-hardwood cuttings By air layering
Seed Collecting: Allow seedheads to dry on plants; remove and collect seeds N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
I planted a young Autum Blaze Maple tree last September, it has buds set but as of May 14 2013 the buds have not swollen or opened. The upper branches are brittle and snap easily however a scratch test on the main trunk shows green....what do I do to help?
On Apr 7, 2009, slyperso1 from Richland, MI (Zone 5b) wrote:
Beautiful tree; bright read seed in the spring, much brighter than red maple; nice leaf in spring and summer; no significant disease or pest, but I had some borer; Amazing fall colors, almost luminescent yellow/orange/red.
The trunk is a little thin when young, thinning canopy helps decrease the wind resistance the prevent splitting of breaking; the bark is thin and deer can damage it easily.
On Oct 6, 2008, nlafrance3 from Edmonton, AB (Zone 3b) wrote:
Autumn Blaze does very well in Edmonton zone 3b. It is definately not only hardy to zone 5a. This tree has amazing fall color but depending on the year, can turn color very early (is very sensitive to temperature drops). The color does last a long time. There are a couple on my street that have held their color for longer than a month! Does not mind the neutral-slightly basic Edmonton soil.
On Apr 4, 2006, stevation from Pleasant Grove, UT wrote:
I was told this maple was more tolerant of Utah's alkaline soils than other red maples, but I see the description above say it likes acid-to-neutral soil. I have one doing very well, one pretty good, and one clearly chlorotic. I need to figure out if there's something I can do about the chlorosis. They've all grown well, and I don't have any problems with them breaking as the previous writer said. Mine were never staked and have survived wind storms and are quite thick after four years.
On Jul 15, 2005, lydiasophia from Eugene, OR wrote:
While this hybrid is meant to be stronger than silver maple, I lost two out of 4 trees (about 2" caliper) which 'snapped' about 4 feet off the ground during a gusty day (not a storm by any means). Their growth rate is phenominal, but they became so top heavy they were unable to support their canopy.
This plant has been said to grow in the following regions:
Aurora, Colorado Homewood, Illinois Spring Grove, Illinois Terre Haute, Indiana Andover, Kansas Inver Grove Heights, Minnesota Decatur, Mississippi Grandview, Missouri Lincoln, Nebraska Rocky Mount, North Carolina Blue Ash, Ohio Deschutes River Woods, Oregon Allentown, Pennsylvania Cedar Hills, Utah Brice Prairie, Wisconsin New Glarus, Wisconsin