50 Mexican Blue Fan Palm Tree Seeds, Brahea Armata 50 Mexican Blue Fan Palm Tree Seeds (Brahea Armata) The Mexican Blue Fan Palm tree grows 20 to 30 feet tall. It is a slow-growing tree - growing only 5 to 8 feet tall after 15 years. The Mexican Fan Palm tree is native to Baja, California. It tolerates temperatures down to minus -10 degrees. The Mexican Blue Fan Palm is a widely grown ornamental lawn tree because of its attractive fronds and trunk structure. Other Names: Blue Fan Palm, Blue Hesper Palm, Sweet Brahea Soil Type: Tolerates drought - grows well in sandy, loamy and heavy clay soils. Prefers well-drained soil. Grows well on poor quality soils. Zones: 9 to 11 Germination Range: N/A GROWING INFORMATION: Stratification Requirement: Takes 1 to 4 months for seed to germinate. 30 days warm stratification required. 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.