Acer palmatum "Red Flash" Description Japanese maple "Red Flash" Description Dwarf, upright, broadly growing, often multi-stemmed deciduous tree (H 2-3 m, W 2-2,5 m). Crown fen-shaped to rounded, at maturity eventually dome-shaped. Leaves broad-palmate (4-7 cm), 7-11-lobed, with serrate margin, at first bright red, later violet-red to dark brown-red; autumn colour bright red; leaflets remarkable, with narrowly pointed tip. Flowers violet-red. Flowering period: April-May. Fruits winged, in pairs (very obtuse, almost straight angle), dark red. Ripening time: September-October. Undemanding tree, suitable for urban conditoins, normally grows in different types of soil, except the very heavy and permanently moist soils.