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Bur Oak Trees
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<blockquote data-quote="Lucky_P" data-source="post: 772026" data-attributes="member: 12607"><p>Bur oak's native range extends from Mexico up into Canada ( <a href="http://www.na.fs.fed.us/pubs/silvics_manual/volume_2/quercus/macrocarpa.htm" target="_blank">http://www.na.fs.fed.us/pubs/silvics_ma ... ocarpa.htm</a>). There's wide variation in mature size, leaf morphology, acorn size, and cap morphology - I've seen some that lacked any 'fringe'(var. mandanensis), while some almost completely cover the acorn, like a true overcup oak(Q.lyrata), etc.</p><p>I fell in love with 'em while I was in grad school at UofMO, at Columbia. It's the quintessential 'spooky old tree' - great form, with that thick corky bark, even on new twigs, large leaves, usually with an ornate 'frilly' cap. Not much fall color, but they're great the other 50 weeks of the year. Had a friend who worked at the MO Dept. of Conservation tree nursery, and they had constant problems with the deer raiding the seedbeds, and even digging up 1-yr old seedlings to get at the acorns.</p><p></p><p>Bur oak was the Urban Forestry 'Tree of the Year' in 2001: <a href="http://forestry.about.com/library/weekly/aa071601a.htm" target="_blank">http://forestry.about.com/library/weekly/aa071601a.htm</a></p><p></p><p>Not especially common in The Southeast; it's native to a small pocket in Montgomery Co., in my home state of AL, but I'm unaware of them occurring naturally in GA. Auburn University has planted them extensively as 'street trees' around the campus there, and one tree at the AU vet school(I never took notice of them when I was in school there) produces the largest acorn of any bur oak I've ever come across, including some of the south TX selections.</p><p>I don't see 'em much here in western KY, but once you get up into the 'bluegrass' area of central KY, they're pretty common; good-sized acorns, similar to those I saw in mid-MO, but not huge like the AL/TX/OK acorns.</p><p></p><p>I've grown seedlings from acorns collected or sent from MO, IN, IA, ID, WI, MI, AL, TX, OK, NY, KY, VT, KS, Ontario, Manitoba, and probably some other states I've forgotten.</p><p>I have some AL/TX/OK seedlings grown from acorns that run in the range of 6-8 acorns per pound(with caps removed), while some of those from more northerly sites, like IA, Manitoba, etc., were pretty small, by comparison, probably running in the range of 80-100 per pound. Generally, the farther south/southwest you go within the native range, the larger the acorn.</p><p></p><p>In general, they've been pretty fast-growing for me, most putting on 2+ ft of growth per year, with many beginning to produce acorns before they reach 10 years of age.</p><p>OIKOS Tree Crops, in Kalamazoo, MI offers a number of different seedling oak selections, including some of the large-acorn type bur oaks; check 'em out at: <a href="http://www.oikostreecrops.com" target="_blank">http://www.oikostreecrops.com</a></p><p></p><p>Big acorns, but not the biggest in the world - that award probably goes to Q.insignis, one of the Mexican oaks; . See photos here: <a href="http://www.google.com/images?hl=en&source=imghp&biw=1007&bih=569&q=quercus+insignis&gbv=2&aq=f&aqi=&aql=&oq=&gs_rfai=" target="_blank">http://www.google.com/images?hl=en&sour ... =&gs_rfai=</a></p></blockquote><p></p>
[QUOTE="Lucky_P, post: 772026, member: 12607"] Bur oak's native range extends from Mexico up into Canada ( [url=http://www.na.fs.fed.us/pubs/silvics_manual/volume_2/quercus/macrocarpa.htm]http://www.na.fs.fed.us/pubs/silvics_ma ... ocarpa.htm[/url]). There's wide variation in mature size, leaf morphology, acorn size, and cap morphology - I've seen some that lacked any 'fringe'(var. mandanensis), while some almost completely cover the acorn, like a true overcup oak(Q.lyrata), etc. I fell in love with 'em while I was in grad school at UofMO, at Columbia. It's the quintessential 'spooky old tree' - great form, with that thick corky bark, even on new twigs, large leaves, usually with an ornate 'frilly' cap. Not much fall color, but they're great the other 50 weeks of the year. Had a friend who worked at the MO Dept. of Conservation tree nursery, and they had constant problems with the deer raiding the seedbeds, and even digging up 1-yr old seedlings to get at the acorns. Bur oak was the Urban Forestry 'Tree of the Year' in 2001: [url=http://forestry.about.com/library/weekly/aa071601a.htm]http://forestry.about.com/library/weekly/aa071601a.htm[/url] Not especially common in The Southeast; it's native to a small pocket in Montgomery Co., in my home state of AL, but I'm unaware of them occurring naturally in GA. Auburn University has planted them extensively as 'street trees' around the campus there, and one tree at the AU vet school(I never took notice of them when I was in school there) produces the largest acorn of any bur oak I've ever come across, including some of the south TX selections. I don't see 'em much here in western KY, but once you get up into the 'bluegrass' area of central KY, they're pretty common; good-sized acorns, similar to those I saw in mid-MO, but not huge like the AL/TX/OK acorns. I've grown seedlings from acorns collected or sent from MO, IN, IA, ID, WI, MI, AL, TX, OK, NY, KY, VT, KS, Ontario, Manitoba, and probably some other states I've forgotten. I have some AL/TX/OK seedlings grown from acorns that run in the range of 6-8 acorns per pound(with caps removed), while some of those from more northerly sites, like IA, Manitoba, etc., were pretty small, by comparison, probably running in the range of 80-100 per pound. Generally, the farther south/southwest you go within the native range, the larger the acorn. In general, they've been pretty fast-growing for me, most putting on 2+ ft of growth per year, with many beginning to produce acorns before they reach 10 years of age. OIKOS Tree Crops, in Kalamazoo, MI offers a number of different seedling oak selections, including some of the large-acorn type bur oaks; check 'em out at: [url=http://www.oikostreecrops.com]http://www.oikostreecrops.com[/url] Big acorns, but not the biggest in the world - that award probably goes to Q.insignis, one of the Mexican oaks; . See photos here: [url=http://www.google.com/images?hl=en&source=imghp&biw=1007&bih=569&q=quercus+insignis&gbv=2&aq=f&aqi=&aql=&oq=&gs_rfai=]http://www.google.com/images?hl=en&sour ... =&gs_rfai=[/url] [/QUOTE]
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