Hello, Olin, We have been enjoying artichokes from one group of plants for about 3 weeks now, but none on that clump grew as large as the ones on the adjacent clump. Both clumps started out as single plants 3 years ago, but have died back and multiplied many times, much to our delight:) I am told that one can grow macadamias anywhere one can grow avocados, if that is a help. There are macadamia orchards/groves (never sure which term applies), down in eastern San Diego County in Rainbow, near Fallbrook, at the very northernmost edge of San Diego County before it turns into San Bernardino County, IIRC. Summers there are quite warm, and the area enjoys a typical inland California climate, where summers are warm and winters are cool, but not cold. An acquaintance of mine recently opened a Brugmansia nursery in that area, so it can't get all that cold. Where in AZ do you live? I will forward your question to one of the macadamia mavens on the macadamia list to see what their considered opinions are. Our tree is now in the ground 3 years, this past month. It began to flower last year and bore two, count them, two, nuts:) This year we may get a dozen or so; but remember, it is a juvenile tree and the flowers/nuts are borne on the previous year's fruit spurs. Since the tree, at this stage, is expending so much energy on growth and producing new wood and foliage, the fruit spurs will gradually increase with time. I suspect we will start getting a smallish crop of nuts after about the 5th year, as was the case with our citrus, planted in December of '98. Mac is a beautiful tree, an evergreen, which has about 3 flushes of growth per year, and will eventually reach a height of about 30 feet and of a similar spread. I am told that if one practices "canopy management," when the tree is mature, the bees can spot the strings of blossoms more easily, and sunlight will benefit nut production. Well, it's off to a meeting at the association of realtors and off to my office after that. I look forward to hearing from you again shortly. Ron