I'm not sure, but I think one of the reasons true Pomelos have such little popularity in the United States is because supposedly they need more prolonged heat to ripen to full sweetness. (So when you do see Pomelos, you typically see hybrid varieties like Chandler that was bred for maximum sweetness) And if you look at the history, grapefruit was bred to be more cold hardy so that it could survive in places like Florida and Texas that experience occasional frost years. It would be very difficult to commercially grow pomelos in these places (except in limited areas like Miami and Brownsville). There shouldn't be any worries about frost in the Phoenix area though since it has a very mild winter climate. Americans are not familiar with Pomelo and when they do see one they typically just think it is some kind of Grapefruit. Pomelo is very popular in Asia though, particularly Southeast Asia, where it existed long before Grapefruit started being grown in Jamaica and Florida.

http://succulent-plant.com/families/apocynaceae/asclepiadaceae/hoya2.html Tropicbreezent, I am not here to argue with anyone. But I had it labeled Hoya oramicola but everyone else said it was rupicola. :) :) it's been like that for a long time, going back & forth by the Hoya experts.

We have a couple of dwarf redbuds. only been in the ground a couple years, so hard to give a full response. Of interest, locally, redbuds are nearly non existent in the area. Old timers refer to them as dead-buds, so there's something in this region, be it altitude, spring weather, winter wind, summer humidity...whatever. The spring of 2016 locally was brutal. Early warm weather followed by long lingering cool, damp, seasonally cold weather. local orchards were hard hit, certain crops locally were wiped put entirely (cherries, apricots, peaches, plums. only pears and apples had any harvest and they were down signigicantly). We have 5 redbud trres. Two recently planted dwarves, still under 3' tall, and two with trunks close to 6", ten to 12' overall size, and one weeping at about 5' tall. the larger trees and the weeper had very few flowers and took forever to leaf out...if you were impatient, you may well have yanked them. ultimately, they leafed out fine, so we'll see this coming spring. The smaller two looked happy as clams. they bloomed fully, leafed out as though there wasn't a single problem. Was this a size and protection thing? time may tell.

Wow , they are beautiful!! I have a Nidularium purpureum here since 3 years, from the collection of the Botanical Garden of Montreal :-) December 2015: [img]https://farm5.staticflickr.com/4454/23932598768_7d8297c458_z.jpg[/img] [img]https://farm5.staticflickr.com/4496/23932598548_8b5f796b7f_z.jpg[/img] And now: [img]https://farm5.staticflickr.com/4512/38030829271_84cb9602e0_z.jpg[/img] Renee