Vine Maple

Acer circinatum · Sapindaceae
Other Perennial Tree Ornamental
Native to the Pacific Northwest, from southwestern British Columbia south through Washington and Oregon to northern California, mostly west of the Cascades, with a disjunct population in northern Idaho.

Vine maple is a benign native ornamental with no toxicity concern for people or pets. It is not a food plant. As a general note common to all maples, large quantities of wilted maple leaves can be harmful to horses, so as with any maple, keep prunings and heavy leaf drop out of horse pasture; for ordinary gardens and yards it poses no risk. It is grown as a small understory tree for its form and brilliant fall color.

Overview

The graceful understory maple of Pacific Northwest forests - a multi-stemmed small tree with delicate round leaves, sculptural sinuous branches, and some of the most brilliant fall color of any native, thriving in the shade beneath taller trees.

Vine maple (Acer circinatum) is the signature understory maple of the Pacific Northwest - a graceful, multi-stemmed small tree or large shrub that grows in the dappled shade beneath Douglas-fir, hemlock, and cedar from British Columbia to northern California. Its nearly round, crisply lobed leaves (the species name circinatum means 'rounded') and its sinuous, layered, often arching branches give it a distinctive sculptural elegance, and in spring it opens small clusters of pretty red-and-white flowers.

Its crowning glory, though, is fall color. Where it catches some light, vine maple ignites into brilliant scarlet, orange, and gold - among the finest autumn displays of any Northwest native - while trees in deep shade turn a softer yellow. Naturally happy in part to full shade and cool, moist, woodsy soil, it is an ideal small tree for shady gardens, woodland edges, and naturalistic plantings where larger, sun-demanding trees won't thrive. Grown for its form, its foliage, and its fall fire rather than any crop, vine maple is one of the most beloved and versatile native ornamentals of the region.

At a glance

Sun
Part sun · Part shade · Shade
Water
Medium
Spacing
96–240 in (typ. 144)
Mature height
120–360 in (typ. 240)
Start by
Direct sow · Transplant
Frost
Hardy
Germination
30–120 days (typ. 60) @ 55–72 °F (typ. 65)

When to plant

Aug 16 – Oct 11
Primary TransplantFall
In its mild maritime range, fall planting lets roots establish through the wet winter. Plant container or B&B vine maple into moist, humus-rich soil in part shade to shade and water in.
Mar 27 – May 22
Secondary TransplantSpring
Spring planting also works; keep new plants watered through the first dry summer, and site them out of hot afternoon sun to avoid leaf scorch.
Oct 11 – Nov 8
Possible Direct sowFall
Fall-sow cleaned seed outdoors; it needs cold-moist stratification over winter and germinates in spring, but is slow - transplants give a usable tree far sooner.

Zone 7a typical frost: last Apr 10 · first Oct 25

Life stages

  1. Years 1-2 - young tree day 0–550 from transplant
    • Water regularly while establishingevery 6 d
      Keep a young vine maple evenly watered through its first two years, especially in summer drought - it likes cool, moist, humus-rich soil in shade. It roots in steadily and is naturally multi-stemmed and shrubby unless trained.
    • Mulch the root zone and decide on form
      A woodsy mulch keeps the shallow roots cool and moist. Decide early whether to let vine maple grow as a natural, sprawling multi-stemmed large shrub or thin it to a few main stems for a small tree form - both are beautiful.
    Dry soil in the first summersLeaf scorch in too much hot sun (it wants shade or morning sun)Sprawling multi-stem habit (train or embrace it)
  2. Spring flowers with new leaves Apr, May (yearly)
    • Small red-and-white flowers open with the leaves
      As the round, crisply lobed new leaves unfold in spring, vine maple opens small but pretty clusters of red-sepaled, white-petaled flowers - an early nectar source for small pollinators. Winged seeds (samaras), often reddish, follow through summer.
    Small pollinators working the flowersReddish paired samaras forming after bloom
  3. Spring & summer canopy May, Jun, Jul, Aug (yearly)
    • Prune in summer to shape
      Prune vine maple in mid-to-late summer if shaping it; like all maples it bleeds sap heavily from late-winter and spring cuts. Thin crowded or crossing stems and remove some of the many basal shoots if you want a more open, tree-like form.
    • Water in summer drought
      Vine maple is not deeply drought-tough - water in extended dry spells, especially in sunnier spots or hotter zones, to prevent leaf scorch and keep the foliage fresh into fall.
    Leaf scorch and browning in hot, dry, sunny conditionsCosmetic leaf spots or aphids (rarely serious)
  4. Fall color & winter dormancy Jan, Feb, Sep, Oct, Nov, Dec (yearly)
    • Brilliant fall color - the main event
      Vine maple's glory is its fall color: the delicate round leaves turn brilliant scarlet, orange, and gold, especially where it gets some light (trees in deep shade color more yellow). It is one of the finest small trees for autumn display in the Northwest.
    • Appreciate the winter form
      After leaf drop, vine maple's sinuous, multi-stemmed, layered branch structure - sometimes arching to the ground and rooting where it touches - gives sculptural winter interest. Do major structural pruning in late summer, not now, to avoid heavy sap bleeding.
    Low arching stems rooting where they touch moist soil (natural layering)Duller yellow-only color in deep shade (needs some light for red tones)

Watch out for

Verticillium Wilt Disease MediumMay, Jun, Jul, Aug

A soil-borne fungus that clogs the vascular tissue of maples, causing sudden wilting and dieback of individual branches, sometimes with dark-streaked wood - occasional in vine maple as in other maples.

Watch for: Sudden wilting, yellowing, and death of one or more branches while the rest looks healthy; dark streaking in the sapwood of affected limbs.

Prevent: Keep the tree vigorous with appropriate shade, moisture, and mulch; avoid wounding roots and avoid replanting maples where verticillium has killed a plant.

Treat: No cure - prune out dead wood well below symptoms, sanitize tools, and support vigor; many trees wall the fungus off and live for years.

Leaf Scorch (sun & drought) Disorder MediumJun, Jul, Aug, Sep

Not a disease but an environmental stress: wintergreen browns, crisps, and declines when grown in too much sun or allowed to dry out, since it is a plant of the cool, shaded, moist forest floor. Worst in hot regions and open sites.

Watch for: Browned, crisped, or bleached leaves and thinning of the mat, worst in sun, heat, and dry soil.

Prevent: Site in part to full shade, keep the soil consistently moist and acidic, and mulch with pine needles or leaf litter to keep the roots cool.

Treat: Move plants to shadier, moister conditions and water; trim scorched foliage - it recovers with better siting.

Aphids Pest LowMay, Jun, Jul

Small soft-bodied sap-suckers clustering on tender tips and buds, excreting sticky honeydew.

Watch for: Colonies on new growth and flower buds, sticky residue, curling shoots, attending ants.

Prevent: Avoid excess nitrogen; encourage ladybugs and lacewings (zinnia flowers help feed them).

Treat: Hose off or use insecticidal soap. Rarely serious on vigorous zinnias.

Good & bad neighbors

Plant nearby
Western Sword FernA quintessential Northwest woodland pairing - sword fern's evergreen fronds beneath vine maple's arching canopy, both loving cool, moist, humus-rich shade and layering into a classic native understory.
SalalSalal's low evergreen groundcover carpets the shade beneath vine maple in the wild; together they build the layered shrub-and-groundcover structure of a Northwest forest floor in cool, acidic shade.
Red HuckleberryBoth are graceful deciduous understory plants of the same shaded, moist forests; the huckleberry's delicate green branches and red berries complement vine maple's form and fall color in a woodland planting.
Pacific RhododendronRhododendron's evergreen leaves and spring flowers beneath or beside vine maple's fall color make a layered native woodland combination, both thriving in part shade with cool, moist, well-drained acidic soil.
Douglas-fir and conifer overstoryVine maple's natural place is the understory beneath tall Northwest conifers; planting it under high conifer shade reproduces its ideal cool, moist, dappled-light conditions.
Keep apart

Varieties · 3

Monroe
cultivarcut-leaflacy-foliagecompact

A rare selected form with deeply cut, lacy, dissected leaves giving a delicate, almost fern-like texture, on a somewhat more compact plant. Grown for its distinctive foliage; the same shade-loving, fall-coloring qualities as the species.

Pacific Fire
cultivarcoral-barkwinter-interestbright-stems

A striking selection grown for its vivid coral-red young bark, which glows through winter after leaf drop (much like a coral-bark Japanese maple), adding bright winter stem color to the species' fall display. Best coloring in some light.

Species (Acer circinatum)
speciesnativeunderstorymulti-stembrilliant-fall-colorshade-tolerant

The wild vine maple - a graceful multi-stemmed large shrub or small tree, typically 10-25 feet, with nearly round crisply lobed leaves, small red-and-white spring flowers, reddish samaras, and brilliant scarlet-orange-gold fall color. The standard form for native and woodland gardens.

Grow

An easy understory tree for part to full shade and cool, moist, humus-rich soil; give it woodland conditions and shelter from hot sun, and decide whether to grow it multi-stemmed or trained to a small tree.

Vine maple is easy where it belongs: the cool, moist, shaded conditions of a woodland understory. It grows best in part shade to full shade in humus-rich, evenly moist, well-drained soil, and it is one of the better small trees for genuinely shady spots. It tolerates more sun in cool, moist maritime climates (where the extra light actually improves fall color), but in hot, dry, or exposed sites its delicate leaves scorch - so give it shade or morning-only sun and steady moisture there.

Plant it in fall or spring, mulch the roots, and water it through the first summers. An early decision is form: vine maple is naturally a sprawling, multi-stemmed large shrub, its low branches sometimes arching to the ground and rooting where they touch (a natural layering that can form thickets). Left alone it makes a graceful shrubby mass; thinned to a few main stems it becomes a small, sculptural tree. Either way it is largely trouble-free, asking mainly for shade, moisture, and shelter from hot afternoon sun.

Care

Low care - water in drought, prune in summer (never late winter) to shape or open it, and manage the low arching stems and basal shoots for your chosen form.

Vine maple needs little care once established. Keep it mulched and watered in drought - it is not deeply drought-tolerant, and dry, sunny stress causes leaf scorch - and it mostly looks after itself, with few serious pests or diseases. It is a slow-to-moderate grower with a long life.

Prune, if at all, in mid-to-late summer: like all maples it bleeds sap heavily from late-winter and spring cuts, so avoid pruning then. Pruning is mainly about form - thinning crowded or crossing stems, removing some of the many basal shoots for a more open tree-like shape, or simply letting it sprawl naturally as a multi-stemmed shrub. Watch for the low, arching branches that can root where they touch moist ground and spread the plant; remove or embrace them depending on whether you want a single specimen or a naturalized thicket. Otherwise, vine maple is a low-maintenance, elegant native that rewards a shady, moist, woodsy site with decades of graceful growth.

Nutrition

Not a food plant - grown for its form and fall color. Its value is ecological: understory habitat and cover, early-spring nectar, seeds and browse for wildlife, and a role in Northwest forest structure.

Vine maple is not a food plant; it is grown purely as an ornamental for its graceful form and spectacular fall color. Its real worth beyond beauty is ecological. As a key component of the Pacific Northwest forest understory, it provides shade, cover, and structural diversity beneath the tall conifers; its spring flowers offer early nectar and pollen to small native pollinators; its winged seeds feed birds, squirrels, and other small mammals; and its foliage and twigs are browsed by deer and elk (heavily enough that it is an important winter browse in some areas).

Its arching, low, and layering branches also create sheltered microhabitat near the ground, and its thickets stabilize streambanks and slopes, giving it a role in erosion control along the moist, shaded stream corridors where it often grows. So while vine maple offers nothing for the table, it contributes richly to the native food web and forest structure - a small tree that pays its way in habitat and beauty rather than fruit.

History

A characteristic Northwest understory tree long known to Indigenous peoples, who used its tough, pliable stems for baskets, tools, and implements; today a beloved native ornamental prized for fall color.

Vine maple has been part of Pacific Northwest life for a very long time. Indigenous peoples valued its tough, flexible stems and wood, using the pliable young branches for basketry, frames, snowshoes, fish traps, tool handles, and other implements - the springy, resilient wood was well suited to items that needed to bend without breaking. The tree's dense, springy thickets were a familiar and sometimes challenging feature of the shaded forests it inhabits (early travelers noted how its arching, tangled stems could impede passage).

Botanically it was collected and named from the region in the 19th century, its species name circinatum ('rounded') describing its distinctive nearly circular leaves. In modern horticulture vine maple has become a cherished native ornamental, grown across the Northwest and beyond for its elegant multi-stemmed form, its adaptability to shade, and above all its brilliant autumn color, which rivals the celebrated Japanese maples to which it is related. It is a mainstay of native-plant and woodland gardens and of ecological restoration in its home range.

Troubleshooting

Leaf scorch from too much hot sun or drought is the main complaint (give shade and water); duller fall color means too much shade; sap bleeding means you pruned at the wrong time.

Leaves browning, crisping, or scorching in summer: the most common issue - too much hot sun or drought stress on its delicate foliage; give it more shade (or morning-only sun) and steady moisture, especially in hotter zones. Fall color is dull yellow, not red: vine maple colors most brilliantly with some light - a tree in deep shade turns softer yellow, so site it where it catches a little sun for the fiery scarlet and orange. Sap bleeding from cuts: you pruned in late winter or spring - harmless but drippy; prune in mid-to-late summer instead. Sprawling, tangled, rooting stems: natural - its low arching branches layer where they touch moist soil and it forms thickets; thin to a few stems for a tree form or let it sprawl. Cosmetic leaf spots or aphids: minor and rarely need action on a healthy tree. Slow growth: normal - it is a slow-to-moderate grower that rewards patience with a long-lived, graceful small tree.

Growing across climates

A creature of the cool, moist maritime Northwest (roughly zones 5-9); superb in shaded, humid gardens, but needs shade, moisture, and shelter from heat and drought, and dislikes hot, dry, exposed conditions.

Vine maple is adapted to the cool, moist, shaded, maritime conditions of the Pacific Northwest, roughly USDA zones 5-9. Maritime Northwest (zones 7-9, its home): effortless - it thrives in the humid shade of coastal and montane forests west of the Cascades, and in that mild, moist climate it even tolerates more sun (with better fall color as a result). Colder zones (5-6): reliably hardy, growing as a graceful understory small tree where given shelter and moisture. Hotter, drier, or more exposed climates: more challenging - away from the maritime influence it must have shade, cool moist soil, and shelter from hot afternoon sun and drying wind, or its delicate leaves scorch; it is not a plant for full sun in hot, dry regions. Essentially, vine maple wants a shaded, humid, evenly moist, woodsy setting that mirrors its native understory. Provide that - a north or east exposure, dappled shade, and steady moisture - and it flourishes across a good range of climates as one of the most elegant small trees for shade; deny it and it suffers in heat and drought.

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