Dawn redwood at Longwood Gardens PA
bengz6westmd
13 days ago
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Coast Redwoods and Giant Sequoias in the Southeast
Comments (55)" There is also a very large, and interesting plantation of them in Maui, not the southeast, but still a really warm humid climate" Nope! Wrong again! The redwoods there are mostly planted above 5000', a climate where dewpoints are always << 60F, thus nights are going to be in the 50s at worse, and even 30s and 40s in winter. Highs probably never hit 80f, even during the worst heatwaves. Not at all a "really warm humid climate". A few are a bit lower, down to 3000', but their growth seems to become abnormal. Even there, summer are as cool or cooler than Boston's!...See MoreBlue Aptos Redwood Tree shaping
Comments (8)Waiting to prune up does seem to be good advice in my opinion. At least from my recent experience with what my Dawn Redwood tree, which this year for first time has begun gaining lots of height growth, that it is currently displaying. I planted my tree about 3 years ago. It was only 5 feet tall back then. Today it is just over 14 feet tall. I was thinking about doing a trunk cleaning prune just prior to its Spring leafing this year or later this upcoming fall; after the tree goes dormant, but now I am grateful that I have not already done that, and am wondering even if I should still not do that later during this upcoming fall season. The heat this summer has been particularly brutal, for longer periods than I have ever seen it occur in our northeastern part of Oklahoma. For several weeks we had high temps rise in the triple digits and during the hottest times it got up to 106 F. degrees. This dried out our soil enough to make parts of our burmuda grass yellow up, but I was afraid to do watering even at night due to the fear that watering in such extreme heat would only steam the trees and other vegitation. Well, now the temps have lowered and I am watering again, but still my Dawn redwood tree suffered too much. More than 90 percent of the leaves on that tree are brown now. The only green leaves are in the lower branches on the tree. I am now watering this tree as much as possible in the hopes that it will still pull through, but if I had already pruned up those lower branches, none of the remaining leaves would have been green, and very likely the tree would have already died by now. I do realize that the tree might still die, but seeing those lower green leaves continue to give me hope that my watering of the tree will help it to potentially survive long enough for the tree to naturally go dormant and possibly leaf out again next spring. The point of my sad tale is to reveal for you an actual ezperienced reason for not rushing to do the trunk cleaning pruning that the landscaper advised....See MoreDawn Redwood vs Bald Cypress
Comments (63)Beng, Initially, I thought it may be Taxodium mucronatum. I asked around. A few thought it looked like T. mucronatum. A director of university arboretum liked its form and asked for cones. He noted that the size of seeds fall in between mucronatum and distichum. The key difference between these two species is that mucronatum stays green about a month longer (starts growth early and can retain green foliage significantly longer into late fall/early winter. Even most of winter if it is mild enough. However, this one is drops its foliage at the same time as other bald cypress trees so who knows? I wish I could find out where it came from. I haven't seen any bald cypress like that....See MoreCreating a microclimate for Redwoods?
Comments (54)Well, no point in getting in a pissing match about this...I'm sure you are honestly reporting what you saw. OTOH, I can assure you that in the 1994 winter, the 2 big trees on the campus of W&M had no visible damage after 0F. I was definitely looking for it; I even have pictures of the damage to the Trachys planted not far away. (some brown fans, but ones that caught insulating snow still being partly green) This was a period so cold the Potomac north of DC froze solid enough to walk from VA to MD. Even down in Williamsburg, the pot-smoking rebel in our dorm, on a dare, walked out about 25' on an icy coastal pond (brackish water!) without it cracking. Ornamental fountains at fancy hotels were frozen solid. So, very cold...as cold as anything the greater metropolitan PNW can muster. They were wind sheltered by large buildings, in a place that isn't terrible windy anyhow. That could have helped. As I've mentioned before, one has since been severely damaged by a hurricane, as they grew above the shelter of those buildings. (isn't terribly windy, except during hurricanes haha) Clearly the northernmost on the east coast, at the Barnes, has survived several winters that went well below 0F. BUT I've made no secret of my finding a book from the 1940s about Philly area gardens, that said 5 out of 6 tried in prominent public collections, had died by the time of publication. And even that tree is not still around; the Barnes tree is from much later. No way to know without hours of tedious and perhaps impossible primary source investigation, but I have a hunch the winter of 1934 might have been to blame...a candidate for the mid-Atlantic's coldest winter of the 20th century. Perhaps the droughty dust bowl summers of that period were also a problem. So I'm not by any means recommending any normal Joe or Jane Q Public, try to grow these on the east coast....See Morebengz6westmd
12 days ago41 North (Zone 7a/b, NE, coastal)
10 days agolast modified: 10 days agobengz6westmd thanked 41 North (Zone 7a/b, NE, coastal)
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