Thanks for the heads up about Growquest, but I am also aware that scathing information on the internet is not always correct and is sometimes malicious.

That said, I reread what I wrote and noticed that I was not recommending Growquest, but only naming sources. I have never been there and know nothing about the company. Your comment is well-taken, however, since from now on I should refrain from suggesting sources in case readers think my mention of them is a recommendation when in fact my only desire is to be helpful.

Regarding kumquat and lemon. I have seen kumquat grown as an ornamental patio tree and thriving in a pretty big Italian clay pot, 20-inches across or so filled with potting soil.

As far as Meyer Lemon goes, be sure to get a dwarf ‘Meyer Lemon Improved’. They grow very well in whiskey half-barrels. Drill about 14 large holes in the bottom of the barrel. Cover each hole with a piece of broken crockery and fill the barrel with a good quality potting soil. Garden soil won’t work in containers. Fertilize regularly during the warm months of the year with an organic fertilizer recommended for citrus.

http://davesgarden.com/products/gwd/comments.php?compid=3143&type=2.

I thought you might want to know about this since you are putting forth their name as a possible recommendation.

On a separate note, I am interested in doing some citrus trees in containers – kumquat & meyer lemon. Do you have any recommendations about how to go about that i.e. what type of soil I should use, container size, etc. I have purchased a 7 gallon kumquat and will purchase a 15 gallon meyer.

Thanks again in advance.