Planning a cold hardy citrus shopping spree
calamondindave
7 years ago
last modified: 7 years ago
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calamondindave
7 years agoRelated Discussions
Early Spring Shopping Spree results
Comments (4)I love little Agave utahensis var. nevadensis. It has spectactularly long terminal spines, and resists any attempt to disturb it. Be careful while handling. It comes from a isolated population in the mountains west of Las Vegas in Nevada and California. Ocahui is a very cold tolerant plant, and has great form. Stricta 'nana' is another nice small one, but watch the leaf tips which have a tendency to sun burn. You've added some terrific new plants to your collection. It would be great to see pics someday. ;) Brad...See Morecitrus and shop light
Comments (18)Here is a great link for you to read...I also learned from this one too...:-) :-)..Great info! Also look at the info "nygardener" gave me.. Very helpful! But caution.. If your garage is going to go down to the 40's, not to many hours of lights then. No more than 9..At least that is what I have been taught to do from many who grow in those cold conditions... I tried many more hours of that last year, and lost a many leaves and trees to overworking the plants while the roots were not functioning properly at cold levels.. I too am going to take my own advice this year do to very sucesssful people I am meeting, growing in colder temps too... I am only sharing based on people with good experience, and research, not my own experience. This will be a first for me with less light at cooler temps..More lights at cooler temps was a failure.. I hope you still find my time and info useful..;-) Here is a link that might be useful: lighting...See MoreSurvey: Cold protection for in-ground citrus in z8
Comments (23)Softmentor - You are very right on the many number of factors that determine cold hardiness (others we did not mention: acclamation to cold and overall health of the tree)...there is certainly no "magic number." I have found that upper 20's for a few hours are fine for oranges, grapefruit, and meyer lemons. Other lemons, citrons, limes, etc. wouldn't like that I am sure. From my understanding, Trifoliate orange rootstalk actually does add some protection because it is the only citrus that goes completely dormant in the winter. According to John Panzarella (a local citrus guru for Southeast Texas), "PT goes dormant in the winter, so reduces the water flow to the scion and gives the scion a few degrees of cold protection. PT will not start growing and producing tender new growth with a few days of warm weather in the winter." The last sentence is especially important for Texas, as in the winter we have frequent gulf breezes battling arctic cold fronts. So far, here are my unprotected lows for my varieties: Rio Red Grapefruits (2 trees planted at the same time by previous owner)- 26 F (4 years old, south side of house, pine trees overhead) -- tree was covered in snow (maybe insulated it a bit??), I was very surprised that there was no damage. Okistu Satsuma - 29 F (planted fall 2008, north side in the yard, no overhead protection at all) Meyer Lemon - 28 F (planted spring 2007, north side of house, no overhead protection) Moro Blood Orange - 28 F (planted spring 2007, in yard with no protection) Lakeland Limequat - 29 F (planted fall 2008, north side of house, 2 feet from brick exterior of house) As you can see, this is a very small sample size and only a brief history of data. Last winter was pretty warm, as has this winter so far. I wish I had a better way of measuring the length of the freeze and other variables....See Morecold hardy citrus
Comments (76)Well, when you're President of the US, maybe you can allocate a good bit of research $$ to the Dept of Agriculture to do some more hardy citrus breeding....See Morecalamondindave
7 years agolast modified: 7 years agoponcirusguy6b452xx
7 years agolast modified: 7 years agohobbyartisan (Saskatoon, SK Canada, 2b)
7 years agoLaura LaRosa (7b)
7 years agocalamondindave
7 years agolast modified: 7 years agoparker25mv
7 years agolast modified: 7 years agoponcirusguy6b452xx
7 years agolast modified: 7 years agomksmth zone 7a Tulsa Oklahoma
7 years agohobbyartisan (Saskatoon, SK Canada, 2b)
7 years agocalamondindave
7 years agoponcirusguy6b452xx
7 years agolast modified: 7 years agocalamondindave
7 years agoLaura LaRosa (7b)
6 years agocalamondindave
6 years ago
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