Redleaf Japanese Maple Tree Seeds

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About & Species
GROWING INFORMATION

Redleaf Japanese Maple Tree
(Acer palmatum atropurpureum)

The Redleaf Japanese Maple, also called Bloodleaf Japanese Maple, is an excellent Japanese Maple tree for ornamental use, desks, patio and bonsai. It grows 15-25 feet tall and 15-25 feet wide. It has a vase shape structure. The Redleaf Japanese Maple is native to Japan where it grows in lowland areas and mountain woods. Its purple/red colored leaves make this tree a beautiful specimen for bonsai and home landscapes.  

Soil Type: Prefers moist well-drained soil.

Zones: 5 to 8

Germination Range: 50-70%

Stratification Requirement: Seed requires hot water treatment followed by 90-120 days cold moist stratification

Indoor Planting: If your seeds require stratification or scarification – do the recommended pretreatment before planting indoors. Planting Instructions: Fill a container with seed starting mix to about ½ inch from the top. Place your seeds 1 inch to 1 ½ inches below the soil surface. Gently water your seeds to keep moist, not soaking wet. Heat & humidity is critical for germination. Germination may occur in 1 week or as long as 3 months (depending on the species). Place the seed container on a heat mat under growing light(s). Keep your growing lights on 14 hours per day. Keep your heat mat on 24 hours per day. Once your seeds germinate, move each seed into its own container under the growing lights and on the heat mat. Keep your seedlings indoors for 2-3 months before transplanting outdoors in the spring (May to June).

Outdoor Planting: If your seeds do not require stratification: the best time to plant tree and shrub seeds outdoors is after the last frost in your area (spring). In the Northern states – the best time to plant seeds outdoors is from May to June. If your seeds require pretreatment: you should plant your seeds outdoors before the ground freezes in your area (late September to early November). Your seeds will naturally stratify during the cold winter. Germination usually occurs in May or during the spring season.