Pacific sunset maple vs autumn blaze

Dr Ahsanur Rahman, PHD
3 min readNov 24, 2023

The Pacific Sunset Maple (Acer truncatum x A. platanoides ‘Warrenred’) and the Autumn Blaze Maple (Acer × freemanii ‘Autumn Blaze’) are both popular hybrid maple trees known for their vibrant fall foliage. However, there are some differences between the two that may influence your choice based on your specific preferences and environmental conditions. Here’s a comparison:

**Pacific Sunset Maple:**

1. **Species:** A hybrid of the Shantung Maple (Acer truncatum) and the Norway Maple (Acer platanoides).

2. **Size:** Typically grows to a height of 25–30 feet, making it moderately sized.

3. **Foliage:** The leaves emerge with red and orange hues in spring, turning green in summer, and then displaying vibrant shades of orange, red, and purple in the fall.

4. **Adaptability:** Tolerant of various soil types and urban conditions. It can withstand drought once established.

5. **Branch Structure:** Some individuals may have weak branch structures, especially if not pruned properly when young.

6. **Roots:** Like many maples, it can have shallow roots, which may be a consideration for landscaping.

**Autumn Blaze Maple:**

1. **Species:** A hybrid between the Silver Maple (Acer saccharinum) and the Red Maple (Acer rubrum).

2. **Size:** Tends to be larger than the Pacific Sunset Maple, with a mature height of 40–50 feet.

3. **Foliage:** The leaves resemble those of the Red Maple, with green foliage in spring and summer. In the fall, the leaves turn vibrant shades of orange and red.

4. **Adaptability:** Adaptable to a range of soil types, but it prefers well-drained soil. It is also known for its drought tolerance once established.

5. **Branch Structure:** Generally has a strong branch structure, reducing the likelihood of limb breakage.

6. **Roots:** Like many maples, it can develop shallow roots, but it is generally less prone to root issues compared to some other maples.

**Considerations for Choosing:**

1. **Size:** If space is a consideration, the Pacific Sunset Maple’s more moderate size might be preferable.

2. **Fall Color:** Both trees offer beautiful fall foliage, but the specific shades of red and orange can vary. Personal preference for the color palette may influence your choice.

3. **Branch Structure:** If you are concerned about branch breakage in storms, the Autumn Blaze Maple is often praised for its stronger branch structure.

4. **Soil Conditions:** Both trees are adaptable, but if you have specific soil conditions, you may want to choose the one that is a better fit.

5. **Local Climate:** Consider the specific climate and weather conditions in your area to ensure the tree is well-suited to your region.

Ultimately, both the Pacific Sunset Maple and Autumn Blaze Maple are popular choices for landscape trees, and the best choice depends on your specific preferences and the conditions in your planting location. Consulting with local arborists or horticulturists can provide valuable insights tailored to your region.

--

--

Dr Ahsanur Rahman, PHD

About Me: Agriculture and Forestry Research · Chemical Science and Nanotechnology · Drug Development and Biomedicine · Environmental Research and Technology