Marsha, you do not need wood to make a pot. The coir is stiff enough to hold the semps and soil. The coir is your pot. You are not going to use that much soil really because these plants do not like a lot of soil they need drainage to survive in the winter especially if you are going to use the birdhouse in the garden in the winter.
Tomorrow is going to be a rainy day I will try to do a instruction pic step by step.
