Redvein Maple (Acer rufinerve)

Redvein Maple

Acer rufinerve

Its red-veined leaves paint woodland edges with soft autumn warmth. Deciduous small tree; common names: Redvein Maple, Honshū Maple.

Partial sun
1–2/week
Moderate
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Plant Needs

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Sunlight Partial sun to full shade; tolerates gentle morning sun but avoids harsh midday direct sun that can scorch foliage
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Watering Water deeply when the top 5 cm of soil is dry; ensure proper drainage to prevent root rot from standing water
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Temperature Hardy to -20°C; thrives in cool temperate climates and requires a period of winter dormancy
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Characteristics

  • Leaf: Palmate, 5-lobed leaves with prominent red veins; turns bright red in autumn
  • Flower: Small, yellow-green umbellate clusters that emerge before new foliage
  • Stem: Young stems have fine reddish pubescence; mature bark is smooth gray with subtle fissures
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Care Guide

Watering

Keep soil consistently moist but not waterlogged; apply mulch to retain moisture and regulate soil temperature

Fertilization

Apply diluted balanced liquid fertilizer once monthly. Use a fertilizer with equal nitrogen, phosphorus, and potassium to support healthy foliage and root growth

Composted banana peel tea:Soak fully composted banana peels in water for 3 days, dilute the infusion 1:20 with water, and apply as a root drench; avoid using raw peels to prevent pest infestations
Pruning
  • Remove dead, damaged, or crossing branches in late winter before new growth emerges
  • Thin crowded inner stems to improve airflow and light penetration to lower foliage
  • Shape lightly to maintain a compact, natural canopy; avoid heavy pruning that can stress the tree
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirms no toxicity to cats

Humans: No documented toxicity to humans

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Garden Uses & Culture

Culture: Valued in Japanese garden design for its delicate autumn foliage and understated spring blooms

Usage: Ornamental landscape tree for seasonal color; suitable for container cultivation on patios in cool climates