When you pre-order you are reserving yourself a spot in line for when our next shipment of that plant arrives. The payment is made upon checking out, to ensure we reserve your order, and then we ship promptly upon the arrival of our shipment!
The reason for doing this is because mother nature is so unpredictable. Some seasons have a good harvest, sometimes it is not, it could be a dry spell, too much rain they can't dry the plants properly, etc. There are so many factors that go into bringing you these special plants, so get them when you can and save your spot in line.