The price of the trees generally varies between 18 and 30 euros, including tax. The value of the trees added to your subscription may be slightly higher or lower than the value of the subscription. Your balance changes with each payment, evening out over the months. If you close your subscription, you may end up with an overdue balance which matches the value of the trees delivered. You'll then have a choice between exchanging some of your trees to balance your account or a final direct debit.