Thuja orientalisis one of the most important species due to its low ecological needs and tolerance against winter dry and summer heat. which is very current in forest plantation in degraded ecosystems and arid and semi-arid shrub lands of Iran. This experiment was performed at complete randomized block and factorial design with three treatments. sowing date (autumn and winter). https://poolsproductscanadas.shop/product-category/aquavac-tigershark-parts/