Flame Amur Maple

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The Small, Ultra-Hardy Maple With the Brightest Fall Color of All Flame Amur Maple (Acer ginnala 'Flame') is a compact small tree or large shrub prized for spectacular fiery-scarle t fall color — one of the most reliable autumn performers for cold climates. It tops out around 15–20 feet, works beautifully as either a multi-stem clump or a single-trunk specimen, and is hardy all the way to USDA zone 3. Whether you need a small-space focal point in an Edina courtyard, a fall-color anchor by a Minnetonka patio, or a tough screening shrub in Shoreview, Flame fits where a full-size maple never could. Flame Amur Maple Plant Details Attribute Detail Scientific Name Acer ginnala 'Flame' (syn. Acer tataricum subsp. ginnala) Common Names Flame Amur Maple, Amur Maple, Ginnala Maple Mature Height 15–20 feet Mature Width 15–20 feet Growth Rate Moderate — about 1–2 feet per year in Minnesota Sun Full sun to part shade — best fall color in full sun Water Moderate. Tolerates average rainfall once established; quite adaptable. USDA Zones 3–8 (Twin Cities is zone 4b–5a) — extremely cold-hardy Soil Very adaptable — tolerates Minnesota clay-loam and a wide pH range. Prefers well-drained loam. Foliage Deciduous — small, fine-textured leaves; fragrant spring flowers followed by red samaras (winged seeds) Fall Color Brilliant red to orange-scarlet — among the most vivid of any hardy maple Winter Hardiness Reliable to USDA zone 3 — one of the hardiest maples available Deer Resistance Moderately deer-resistant; protect young stems the first 2 winters Native Status Not native — native to northeastern Asia. Very tough and hardy; it can self-seed, so site it where stray seedlings are easy to manage. Flame Amur Maple Uses in Minnesota Landscapes Small-Space and Patio Specimen At a mature 15–20 feet, Flame is one of the few maples that fits a courtyard, entry bed, or patio corner. Grown as a multi-stem clump it makes a sculptural anchor; as a single-trunk tree it offers light shade without overwhelming a small Twin Cities lot. Brilliant Fall-Color Focal Point The whole point of Flame is the autumn show — the fine-textured canopy ignites brilliant red to orange-scarlet, often outshining far larger trees. It's a standout in a mixed border or against an evergreen backdrop. Informal Screen or Hedge Planted in a row, Flame Amur Maple forms a tough, hardy informal screen that needs little care and rewards you with a wall of fall color. Space plants 8–12 feet apart for a screen. Best Time to Plant Flame Amur Maple in Minnesota Plant in spring (late April–May, after the ground thaws) for a full growing season of root establishment, or in early fall (late August–early October) while the soil is still warm. Get it in the ground at least six weeks before the ground freezes — typically mid-November in the Twin Cities. Avoid mid-summer planting in heat and humidity, and never plant after mid-October or before spring thaw. How to Plant Flame Amur Maple Dig wide, not deep — 2–3x the root ball width but only as deep as the ball is tall, so the root flare sits at or slightly above grade. Check for clay hardpan — if water pools and won't drain, break through the clay layer or mound-plant slightly to improve drainage. Backfill with the native soil mixed with 20–30% compost; don't build a pure-compost "container" the roots won't grow beyond. Spacing — give a single specimen 12–15 feet of clearance; space an informal screen or hedge 8–12 feet apart. Build a 3–4 inch watering ring to direct water to the roots, then flatten it before winter so it doesn't trap ice. Mulch with 2–3 inches of shredded bark or wood chips in a wide ring, kept 2 inches off the trunk. Never use gravel mulch in Minnesota — it doesn't insulate roots. Watering Flame Amur Maple in Minnesota First Year Watering Schedule Weeks 1–2: water deeply and slowly every 1–2 days. Month 1–2: every 3–4 days. Month 3–6: every 5–7 days during active growth, easing off when rainfall is adequate (the Twin Cities average about 3 inches a month from June through August). Stop watering 2–3 weeks before the ground freezes — usually late October — so the plant doesn't push tender growth heading into winter. After Year One Once established, Flame is very low-maintenance and quite drought-tolerant, needing supplemental water mainly during extended droughts (two-plus weeks with no rain and temps above 80°F). Soak deeply every 7–14 days when needed. Will Flame Amur Maple survive a Minnesota winter? Yes — easily. It's rated to USDA zone 3 and is one of the hardiest maples you can plant, fully at home anywhere in the Twin Cities. How big does it get? It stays small — about 15–20 feet tall and wide — which is exactly why it's so useful for courtyards, patios, and tight spots where a large maple won't fit. Is it native to Minnesota? No — Amur maple is native to northeastern Asia. It's extremely tough and hardy, but it can self-seed, so plant it where occasional volunteer seedlings are easy to pull or mow. Can I grow it as a clump or a single tree? Both. Flame is sold as a multi-stem clump for a sculptural, shrubby look or trained to a single trunk for a small patio tree — your choice depending on the spot. Does it tolerate clay soil? Yes. Flame handles Minnesota clay-loam and a wide pH range, which makes it one of the easiest small ornamental trees to place. You May Also Like Scarlet Jewell Red Maple — a tidy red maple with early, brilliant scarlet fall color for mid-size lots. Inferno Sugar Maple — a native sugar maple selected for fiery scarlet-red fall color. Northwood Red Maple — a University of Minnesota red maple bred for extreme cold-hardiness. Serviceberry — a small native tree with spring flowers, edible berries, and orange-red fall color. Red Sunset Red Maple — a larger, fast-growing red maple for full-size shade with brilliant fall color. How Many Flame Amur Maples Do I Need? For a single courtyard or patio specimen, one plant with 12–15 feet of clearance is all you need. For an informal screen at the standard 10-foot spacing: Screen length Plants needed 20 feet 2–3 plants 40 feet 4–5 plants 60 feet 6–7 plants 100 feet 10–12 plants Tighten to 8 feet apart for a faster-closing screen; widen to 12 feet if you want each clump to keep its own shape. Flame Amur Maple Season-by-Season in Minnesota Spring: Fragrant creamy-yellow flower clusters open in May with the fresh fine-textured foliage — a quiet but genuinely scented maple, visited by early bees. Summer: Tidy, dense small canopy of three-lobed leaves; showy red samaras (winged seeds) ripen against the green in mid-to-late summer. Fall: The main event — brilliant red to orange-scarlet that ranks among the most vivid fall color of any zone-3-hardy plant, peaking late September–October. Winter: Multi-stem clumps show sculptural smooth gray stems that hold snow attractively; zero winter dieback in Twin Cities cold. At a Glance ✔ Pollinator-Friendly ✔ Drought-Tolerant ✔ Four-Season Interest Plant It With Alpenglow Maple — a sibling Amur-type maple; pair them for a layered small-tree fall display. Autumn Brilliance Serviceberry — a native small tree with spring bloom and matching orange-red fall fire. Northwood Red Maple — a U of M red maple to carry the scarlet theme up to full shade-tree scale. Red Sunset Red Maple — a larger backdrop maple that extends the red show overhead. Is Flame Amur Maple Right for Your Yard? Choose Flame if you need big fall color in a small footprint — it thrives in full sun to part shade, takes clay and drought in stride, and fits under power lines and beside patios where full-size maples can't go. It's not a fit if you want a strictly native planting or a no-maintenance edge near natural areas — it can self-seed, so site it where mowing or weeding keeps volunteers in check. Show more