Yes... I would get a glazed clay container rather than porous. Or if you are planning to move it, you might consider putting it in a plastic container and finding a decorative clay pot to set the plastic one into for your own convenience. The heavier container won't blow over as easily but will be more difficult to move. Porous clay will dry out too quickly and also stands a chance of cracking when freezing.
You did catch the comment on that link about the shape of the container?
word of warning on pot selection: if you ever think you may transplant out of the pot you are choosing, do not get a pot which tapers in at the rim like the one our Eureka lemon tree is in. It will be very difficult to take the plant out without damaging its roots. Luckily this pot is large enough to be our Eureka’s permanent home.
I meant a shape like the second photo in this link.
http://www.scotts.com/smg/lear...
I think the ideal one would be fairly tall and more wide at the top. I said taller because a tree would probably like depth for its' roots.
Your tree looks delightful. Have you had a chance to smell the fragrant blooms yet? When you do, you may want to keep it nearby.
