Freeman - 'Armstrong', AUTUMN BLAZE®, AUTUMN FANTASY®, SIENNA GLENN®
Acer x freemanii
Freeman - 'Armstrong', AUTUMN BLAZE®, AUTUMN FANTASY®, SIENNA GLENN® (Acer x freemanii) is a tree suited to the Colorado Front Range, rated "Not Recommended" on the 2024 Front Range Tree Recommendation List. It matures to about 40–60 ft tall and 30–50 ft wide, and needs medium water. Develops iron chlorosis in our alkaline soils — leaves yellow with green veins, then decline.
medium water40–60 ft tall and 30–50 ft wide
Photos
At a glance
- Rating
- Not Recommended
- Botanical name
- Acer x freemanii
- Variety / cultivar
- Freeman - 'Armstrong', AUTUMN BLAZE®, AUTUMN FANTASY®, SIENNA GLENN®
- Type
- Tree
- Mature size
- 40–60 ft tall and 30–50 ft wide
- Water needs
- medium water
- Colorado native
- No
- Foliage
- Deciduous
- Soil
- clay, loam, sandy
- Soil pH
- 6.0–8.2
- Hail tolerance
- moderate
- Wind tolerance
- moderate
- Salt tolerance
- moderate
- Good for
- rain garden
Site factors to consider
- Critical: Soil Chemistry
- Watch: Suckers
- Watch: Re-seeds
Frequently asked questions
- Is Freeman - 'Armstrong', AUTUMN BLAZE®, AUTUMN FANTASY®, SIENNA GLENN® good for the Colorado Front Range?
- Yes. Freeman - 'Armstrong', AUTUMN BLAZE®, AUTUMN FANTASY®, SIENNA GLENN® is included in the Front Range Plant Finder as a tree suited to Colorado's Front Range, rated "Not Recommended" on the 2024 Front Range Tree Recommendation List.
- How big does Freeman - 'Armstrong', AUTUMN BLAZE®, AUTUMN FANTASY®, SIENNA GLENN® get?
- It matures to about 40–60 ft tall and 30–50 ft wide.
- How much water does Freeman - 'Armstrong', AUTUMN BLAZE®, AUTUMN FANTASY®, SIENNA GLENN® need?
- It needs medium water once established.
- Is Freeman - 'Armstrong', AUTUMN BLAZE®, AUTUMN FANTASY®, SIENNA GLENN® native to Colorado?
- No — it is not a Colorado native, but it grows well on the Front Range.
