Pot your Adenium right the first time to avoid stem rot and the need to re-root again later, or fully lose your prized plant.
Your Adenium was treated with a vitamin B solution to minimize shock from its journey through the mail. It has been packed in peat and is ready for its new home.
Carefully remove the Adenium from the plastic bag. Now it can be rooted by planting the cutting in a good soil mix and a little basic care. I have had the best results by potting in a mixture of 50% potting soil and 50% perlite. You can also use a commercial cactus and succulent potting mix.
Don't plant the cutting too deep in the pot as this can lead to rotting and losing the cutting. A 6 inch plastic pot works well. Place the plant on some soil to a depth that covers the yellow portion of the bulb. Lightly spread the roots, and then add soil to secure your new plant.
Your cutting is now secure in it's new pot and should be well watered and located to a warm and well lighted area. Do not water again until the soil is completely dry. Keep the pot in a well-lighted area until the plant is acclimatized to its new home (about 2-3 weeks). You can then move the plant to a sunnier location to spur blooming.
Adeniums are very sensitive to cold, so make sure to bring your plants inside if you reside in an area with cold winters. Fertilizing you plant once a month with a commercial "Bloom Inducing" fertilizer will insure rapid growth and lots of flowers.