You may not see them because they are so darn thorny!! They should be fully hardy into zone 6b at least. I live in 7 and have only seen them in local botanical gardens--again, I guess because people don't want to put up with their thorns. I understand there are recipes available for their very bitter fruits. I grow these as containerized plants as part of my citrus collection. Maybe some day I'll put them in the ground, but I too have a problem with really thorny plants (aside from cacti which I seem to love). I too have never seen them being sold in local nurseries, but that doesn't mean they cannot be grown locally. As plant enthusiasts, we forget that MOST people just want to play it safe with boring, conventional and predictable.--Go for it if you like them!!--Good defense for intruders and annoying neighbors. PS. The Internet is a source for these plants.

They are suppost to be bullet proof down to a zone 6a. They arent very common landscaping plants, but if you have a large window that you are a afraid can be broken into easily, this is the plant to put there. Works great for fences too!

And in the summer all your neigbors will be asking "Is that an orange tree", "I thought it died last winter".

Too bad these oranges are more for show than for eating (although it can be done). I probably wouldnt even try to pick them off the tree, its not worth it to me and its one of those fruits that the birds can have all to themselves.

Good luck.

NJOasis and Tropicalzone7, which of the three that I mentioned are you referring to? Like you, I also have read that they are hardy in my zone but I wondered if anyone has actually grown them or seen them growing in a zone 6 location? Are they all TRULY hardy in zone 6 or is it all just internet myth to promote sales? And are all three thorny like you say? If I were to grow Poncirus it would only be for the flowers' fragrance and the curiosity of it. As for the citrandin and the citrumelo, I've read that they are edible even if not so tasty.

I'm in zone 7b and there are a few people growing various hardy citrus and hardy hybrids in the ground. They do not get crops every year, in fact it seems they only get a decent crop every 4 or 5 years. The only reliable citrus for bloom and fruit around here is Poncirus trifolia and very few people bother eating the fruit.

Part of the problem is that most citrus fruit takes most of the year to ripen. So if the plant blooms in the spring (they bloom late if "in the ground") then the fruit won't be completely ripe by first frost in the fall. So you can either harvest unripe fruit and make lemonade out of them or cover and heat your trees until the fruit ripens.

I find that many citrus grow just fine in large pots and they are easy to move in and out of the garage or other such shelter when the temps dip below freezing and I always get enough fruit.

You might want to consider a Thomasville Citrangequat (McKenzie Farm is a good supplier). Both it and a Yuzu have survived the past 2 winters in my zone 7 backyard with little or no protection. Thomasville comes through the winter looking a little better than the Yuzu, and is supposedly a nice substitute for a lime. Mine has a few fruits on it now. My Flying Dragons come though with no problems, but the fruit isn't worth anything.

I'm not going to use any trifoliata root stock and I'm growing normal lemons in clay soil in 6b zone

I'm back with new

Got a new phone

And I hope y u all are doing well

The thorns can lower home owner insurance

Howard You are not the only one doing well with clay.

https://www.youtube.com/watch?v=084t6gdlgyk

Steve

But i had to find some Richard clay

porncirusguy6b42xx i have a rather tough question my lemon seedling survived temperatures in the lower 20's and upper teens last. spring why did those temperatures not kill my seedlings and they regular lemons

I've heard of this happening occasion with all kinds of seedlings. Your seedlings may have been in a small localized sweet spot protected from the wind and the elements. They also may have been in some sort of dormant state. How tall were they ? 3 or 4"?

Howard. I don't know.

does this surprise yu

A black asphalt parking lot (usually on compacted stone base) would retain a good deal of heat gain from the day plus its typically set down 4" to 6" in grade from the adjacent sidewalk or paving. A windbreak. This and a clay pot filled only half way to 3/4 way with soil covering a semi dormant 2" seedling, the pot itself would would explain an extra windbreak and heat retention for overnight lows. You did say March not January right?

right

my pot wasn't clay my soil in my plastic pot is. clay an my pot is black painted gold.

Ok a plastic pot. Same extra windbreak effect if filled half way with soil and a 2" seedling. . That same seedling at 8" high in January covered with snow sleet and ice and subjected to howling winds might not fair too well.

It will be very difficult, and likely impractical, to grow any intergeneric hybrids in zone 6.

US852 and TaiTri might be the only ones that would have any chance of making it, and even then I'd strongly recommend planting in a protected spot, somewhere that won't get too much wind, and putting a pile of mulch and a cover on it over the winter. Probably close to the wall of a house would be good, surrounded by other nearby bushy plants.

Bear in mind these two are not exactly "delicious" tasting. TaiTri is not very much better in taste than poncirus, while US852 has a bit of off taste and is nowhere near as good fruit quality as the crappiest mandarin you might ever find in a supermarket. Though I did see a video where one very adventurous enthusiast claimed he was able to "enjoy" eating them. (full of seeds of course)

it was a regular lemon

Fukushu kumquat survives 6b Cincinnasti

Steve

I must be doing something right

I'm still sticking with my regular lemons

the soil in flowerpot is clay

poncirusguy6b452xx what wa i doing. right with my lemon seedling. had it in a pot half filled with clay. soil back in march and little lemon seedling wa about to inches. tall and it endured temperatures in the lower 20's upper teens here in. ashland,Kentucky. those temperatures it endured for days and nights at a time. it had extreme march sun and on black aspault parking lot and close to the building and the pot was black painted gold and it endured march winds

socalnolympia I don't have access to those varieties of citrus but even they could. be worked for better flavor

I must he done something right