stephen lowe wrote:Super cool plan, I hope it works out and look forward to results. The one issue I see is, if you are using heated grow rooms for the grow outs how will you be able to select for cold hardiness?
Ken W Wilson wrote:
Dan, have you found any uses for the Poncirus?
Greg Martin wrote:Very cool. Don't forget that most seedlings of Citrus are clones of the mother plant (nucellar seedlings). When choosing a mother plant try to use those that set few seeds that are clones.
Dan Boone wrote:Location: Central Oklahoma (zone 7a)
I figure there ought to be something more useful than the poncirus that would grow here, but the only way I'm going to find it is to build a big cold frame for my seedling nursury and some semi-protected outdoor environments (lots and lots of south-facing masonry walls) and then start slaughtering four-year-old trees on an epic scale. I've been saving kumquat and meyer lemon seeds, but that's as far as I've gotten...
Ken W Wilson wrote:Are there any improved selections of Poncirus? It sounds like the flavor is variable. Just better than most would be helpful to those of us in Zone 6
Frank Cordeiro wrote:My Yuzu limes have survived three days of 10 degree weather with just some minor stem damage. It is producing lots of good fruit with no freeze damage the last two years.
Mike Jay wrote:Is "Maine" a city in Oregon?
Matt Hedlund wrote:Hey there Parker Turtle,
Interesting stuff! I too live in Seattle and have a cold hardy citrus collection of my own. In the ground i have:
Kuno Wase Satsuma
Chinotto Sour Orange
Bloomsweet Grapefruit (kinkoji)
& Poncirus trifoliata
To date, these have all seen 18 degrees unprotected with no damage across the last 3 winters.
If you're ever looking for rootstock, I've got a couple hundred poncirus trifoliata that are just about grafting size! And I'm always on the lookout for new varieties.
Jerry Davis wrote:My father grew a cold hardy lemon tree from seed many years ago. He passed away in '98. This tree looks and smells like a lemon, very thorny, but the large yellow fruits resemble more a grapefruit. They don't taste like either a grapefruit or lemon however and the longer they stay on the tree, the less bitter they become until they are perfectly palatable right off the tree. My mother had this tree for many years and it never bore fruit until I started managing it and realized that it must get adequate water when the flowers are blooming. It has died to the ground twice, once many years ago and again during the last deep freeze here in El Paso. Both of these freezes were in the neighborhood of 0 degrees F. Otherwise it endures temps down into the teens, occasionally with minor frost damage. The tree is approximately 20' tall and presently has about 75 unripe "lemons". My research indicates this thing is called a Pasadena lemon, a tree I occasionally see for sale here at about twice the price of the next tree. But I have no idea really. My wife's grandmother had a cold hardy grapefruit that behaved similarly to this lemon, but the fruit never survived long enough to get ripe until the advent of global warming. Now they do, or did, as she passed away a few years ago and the house was sold, so don't know how the tree is doing.
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