Other than avocados, I've got 4 loquat seedlings a few years old, tallest about 5' tall, a couple feijoa bushes that flowered this year but the fruit never developed (hoping for better luck in future years since this was their first), two Helen's hybrid banana seedlings on their third year regrowing from the corm after melting at first frost, a highly productive Luma apiculata bush, two small guabiju seedlings on their third year in the ground, a handful of first-year Texas persimmon seedlings about to face their first Seattle winter, some maypop vines barely clinging to life after 2 years (they seem to hate the dry season, hate the cool spring and fall, and get devoured by slugs and snails most of the year), an Oregon Curlfree peach tree on its second year since bareroot (minimal PLC but didn't set fruit on the handful of flowers this year), two honeyberries on their second year (very productive for their small size, they love the drizzle and cool spring, I can't wait until they get big), a Dunstan citrumelo that went in the ground on its own roots this summer, a trifoliate seedling on its second year in the ground, a yuzu seedling on its first year in the ground after it thrived in its pot in my relatively cool greenhouse last winter, three grafted pawpaws that have grown very slowly in two years, a bunch of different figs I rooted last year that didn't set any fruit this year but should start next year, a few mulberries, including two different Morus nigra cultivars I grafted this summer, one small Psidium longipetiolatum seedling that has been killed to ground twice but keeps sprouting back, and I'm sure I'm forgetting something.
Damn! I didn't know about so many of these! I'm going to be doing more research, look forward to hearing how they do for you going forward.
According literature black sapote is not cold tolerant, "young trees are damaged or killed at or below 30°F (-1°C) and mature trees at or below 28°F (-2°C)", BUT if you have winters like mine, mean January and February 40-45°F, lowest some years just a 2-3 days 30°F, but once in 5-7 years drop for a couple of days to 22-23°F, it goes dormant and don't suffer from cold. I noticed this in BS their first winter in greenhouse, knew from literature that they are not hardy, but they are very vigorous, my greenhouse is only 350 feet square meters, so I took a risk and put 3 of 5 in ground in spring, they were happy and last year I moved others outside. This February we had severe frezee down to 22°F , my 3 years seedlings behaved like deciduous, lost all the leaves and became dormant like cherries, apples, no damage at all, even for small branches, while my avocados and some citrus were killed to the ground. I can even add, they all flowered this spring, but unfortunately, didn't fruited ( I read first year it's normal). I think this numbers are right for, say, Florida, where they stay evergreen and I suggest, the cold hardy apples, plums would be damaged if cold is applied during summer.
I agree with drymyfolia about loquat ( damage temperature for flower), mine had good crop this year after exposing to 22°F. Would advise you to think about grafting it to quince to improve cold, heat and drought resistance.
I also recently started with most of plants mentioned here, so still evaluating their hardiness. Have to put my grafted cherimoyas next spring in ground, they are too big now.
Date palm doing fine here, my oldest 5 years seedling ( 3 years outside) flowered this year ( unfortunately male-)), just take it inside first 2 years or cover if outside. I just started with coquito this year but it supposedly hardy enough for my zone.
Really really gotta try the black sapote now. You've made me very interested in growing them. Cherimoyas are some of my favorite fruits, I didn't know they could handle so much cold! Coquito sounds really interesting to me as well, I'm going to do a lot of research. Thanks!
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I'm leaning towards the Gros Michel or the dwarf variety of it "highland" for the novelty of it being the past commercial banana.