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Kapok trees are also grown on plantations in southeast Asia. Ceiba pentandra can reach heights of 200 feet (60 m), may grow 13 feet (4 m) a year and can live as long as 200 years. They have wide buttresses at their base and large, flat crowns on top.
What is kapok? How do I choose between a buckwheat-filled zafu and a kapok zafu? Kapok is a soft natural fiber from the Kapok tree which is found in Thailand and Indonesia. Naturally silky and resilient, it is the traditional stuffing for sitting cushions. ~ Those who meditate in the seiza, or kneeling position, may prefer a kapok cushion because it can be turned on its side to provide additional height.