A few years ago I visited my future wife's family in the rural parts of Thailand's North east region called 'Isan'. (pronounced E-san) It was here I was gifted a very special fruit. I was handed a purple sugar apple that made the rest of the family jealous. I ate and enjoyed the fruit and slipped some seeds into my back pocket. Long story short, a few trees ended up growing and got the first fruits in 2.5 years in Ft Myers, FL. There was one tree from all the seedlings that made about 6 fruits that 1st fruiting year with no pollination. This year (3.5yrs old from seed) the tree set 50 fruits with only hand pollination on 2 occasions 2 weeks apart.
The tree was selected and exhibits high productivity, excellent chewy dark purple/red skin, inside has white meaty flesh with a raspberry juice flavor, relative low seed count, it is an 'easy peel' sugar apple.
Background on sugar apple types:
In Thai they characterize the type of sugar apples into two categories: 'nang' or 'fai'. The 'nang' type is an easy peel chewy type when ripe. The 'fai' type is a type that is more of a sugary mush and much less desirable grainy texture. The 'Isan Indigo' is a 'nang' type along with the green 'Na Dai' Vietnamese types. As far as I know all known RED SUGAR Apples types in cultivation are the 'fai' mushy type.
I will use this thread to share results of testing and other pertinent information for this new variety. Grafted trees will be available in the future. A limited amount of seed is available through our website due to demand.
https://greenplanetfarm.com/products/thai-purple-chewy-sugar-apple-seeds-a-squamosa-isan-indigo