Hardy Shade Tree with Brilliant Twin Cities Fall Color

Autumn Radiance Red Maple (Acer 'Autumn Radiance Red') is a maple hand-selected for the Twin Cities climate. Small reddish flowers in early spring before leaves emerge. Whether you're planting a shaded border in Maple Grove, layering a foundation bed in Burnsville, or anchoring a perennial bed in Edina — Autumn Radiance Red Maple performs reliably in zone 4b–5a yards.

Autumn Radiance Red Maple Plant Details

Autumn Radiance Red Maple Uses in Minnesota Landscapes

Shade and lawn tree

Maples are signature lawn trees across the Twin Cities — provides decades of shade and a brilliant fall display.

Boulevard and street tree

Many cultivars are bred for narrow boulevard strips and salt tolerance.

Front yard specimen

A focal point that adds value to any Minneapolis, St. Paul, or suburban Twin Cities home.

Best Time to Plant Autumn Radiance Red Maple in Minnesota

Fall (late August–early October) is the ideal planting window. Soil is still warm for root development, cool air reduces transplant stress, and the plant gets 6–8 weeks to establish roots before ground freeze (typically mid-November in the Twin Cities).

Spring (late April–May) is the second-best window — the plant gets the full growing season to establish before its first winter.

Avoid summer planting (June–August) when possible. Never plant after mid-October or before late April — frozen ground or frost-heaving kills new roots.

How to Plant Autumn Radiance Red Maple

1. Dig wide, not deep. 2–3× the root ball width, same depth as the container. Heavy clay benefits from even wider digging.
2. Check drainage. Fill the hole with water — if it doesn't drain in 30 minutes, mound-plant or break through any clay hardpan to improve drainage.
3. Backfill with native soil + 20–30% compost. Minnesota clay-loam benefits from organic amendment but don't create a "container" of pure compost.
4. Spacing. Refer to the mature width above and space accordingly. Closer for mass plantings, wider for individual specimen plants.
5. Water basin. Build a 3–4 inch ring around the planting to direct water to the roots. Flatten or remove before winter to avoid ice damage.
6. Mulch. 2–3 inches of shredded bark or wood chip mulch, kept 2 inches away from the trunk or crown. Do NOT use gravel mulch in Minnesota — it doesn't insulate.

Watering Autumn Radiance Red Maple in Minnesota

First Year Watering Schedule

• Weeks 1–2: Every 1–2 days, deep and slow (15–25 minutes per plant)
• Month 1–2: Every 3–4 days
• Month 3–6: Every 5–7 days during active growth; less if rainfall is adequate (Minnesota averages ~3 inches/month June–August)
• Stop watering 2–3 weeks before ground freeze (typically late October in the Twin Cities metro) to avoid pushing late-season growth that gets killed by winter

After Year One

Established plants only need supplemental water during droughts (2+ weeks with no rain and temps above 80°F). Water deeply and infrequently — every 7–14 days during dry spells, soaking to 6–8 inches depth. Let natural rainfall do most of the work.

Will this maple survive a Minnesota winter?

Yes — most maple cultivars are extremely cold-hardy, reliable to zone 3 or 4.

How long does it take a maple to reach mature size?

Most cultivars reach 15–20 feet within 8–10 years and approach mature size in 20–30 years.

Do I need to protect the trunk of a young maple?

Yes — wrap the trunk with a tree guard for the first 2–3 winters to prevent deer rubbing and sunscald.

You May Also Like

• Shop the full Three Timbers Minnesota catalog — zone 4-hardy plants hand-selected for Twin Cities yards
• Deer-Resistant Plants — for high-pressure suburbs like Minnetonka, Wayzata, and Eden Prairie
• Pollinator Garden Plants — supports the Lawns to Legumes program