Cashew Tree Seeds

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About & Species

Cashew Nut Tree
(Anacardium occidentale)

The Cashew Nut tree is an attractive tropical evergreen tree that grows 30-45 feet tall. The Cashew tree produces the popular edible cashew nuts. The Cashew tree will grow anywhere in tropical dry and wet climates - where the average daily temperate is 77 degrees F. Temps should not drop below 50 degrees F. The Cashew tree starts fruiting nuts in about 2-3 years. The largest producers of cashew nuts are Brazil, India, Vietnam, Africa and Southeast Asia. Nuts are harvested during the dry season (winter).  

Growth Rate: Fast

Soil Type: Grows well in sandy soils.

Zones: 10-12

Germination Range: 60-80%

Stratification Requirement: None.

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.