Due to the US Postal Service practice of irradiating packages, Hydro-Gardens will not guarantee any seeds sent by the US Mail. This practice will sterilize the seeds and they will not germinate. We will still send your order by US Mail but if they do not germinate, they will not be replaced. Bigdena produces very high yield, good fruit shelf life, and strong vigor. Bigdena is an open plant type that is easy to maintain and has low labor costs. It can maintain its size and shape under high temperature and light conditions and is good for the active greenhouse in the US, Canada, and Mexico. • High yield, good fruit shelf life • Very big size, uniform fruit and shape • Open plant, easy to maintain with low labor costs Big Dena Tomato Seed - Beefstake Variety about 10.0 ounce.