BTTR - Organic Oyster Mushroom Mini FarmGrow your own oyster mushrooms with this easy, do it yourself mushroom farm from Back to the Roots! Ready to harvest in just 10 days! Just add water! The Back to the Roots Oyster Mushroom Kit is the easiest way to grow your own organic & gourmet mushrooms at home! This mushroom growing kit comes with everything you need to grow right out of the box just add water, and you'll be harvesting delicious mushrooms to cook into tacos, pizzas, or soups! Back