Yes, we combine shipping! Shipping for seed packs to the USA is $1 for the first pack and the rest ship for free. For international shipping, the cost is $2.30 for the first pack, additional packs are free. You must use the shopping cart feature for these discounts to be applied. We will also combine shipping costs on growing supplies, just request a total from the shopping cart page. If you have any questions about combined shipping, just send a message. Y'all come back now, hear?