Flowering Dogwood Tree - leaves turning red and wilting [photos]
15 years ago
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- 8 years ago
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Dogwood tree leaves look bad
Comments (11)I agree with Mike. Generally I don't recommend treating for anthracnose as it is an ongoing issue that really only results in the eventual decline of the tree beyond salvation. Better to plant resistant forms if possible. If I had my druthers, they wouldn't even sell eastern dogwoods (Cornus florida) in this area as they are virtually guaranteed to get it. Having said all that, I have seen far more anthracnose this season than in previous years and on some so-called quite resistant cultivars. I think a great of deal of it is due to our recent weather.......an extremely mild winter and a mild, moist spring. Ideal conditions for fungal issues!! IME, anthracnose that first appears after these combinations of weather conditions is most likely temporary and somewhat treatable. It starts out as only a foliar problem but if ignored or exacerbated by additional weather issues, it can become systemic in following years. And in those cultivars/hybrids that are usually listed as resistant, it seldom ever progresses beyond the foliar stage. Cultural control at this point is all that is recommended although you may want to be somewhat preemptive next spring, weather depending, and start early on a fungicidal spray just in case. Here is a link that might be useful: dogwood anthracnose...See MoreSmall flowering tree for birds - dogwood?
Comments (22)The white flowering thicket is cherry plum (Prunus cerasifera). This is frequently planted here as a root-stock for purple-leaved plums and other kinds, tends to spread from plantings on its own. Sweet cherry (P. avium) is another much cultivated stone fruit that is actually a nuisance species in local woods. It has even insinuated itself genetically by crossing with the native P. emarginata to produce P. x pugetensis. Luckily the hybrid does not seem to be able to generate seed crops. While I'm back I'd like to reiterate that larger-growing cotoneasters in particular can be problem re-seeders here (dozens of species - of all statures - have been seen growing wild in Seattle). Also point out that Prunus mume is an apricot - it even crosses with P. armenica, to produce what are called bungo* apricots in Japan - and not an almond, that there is no 'e' in hawthorn (unless you are talking about Nathaniel and not the tree), and that Rosaceae is a family and not a genus. I suppose some Eastern North American native tree and shrub species may be as foreign to local native birds as those from overseas. *Stock that has been offered locally under the silly name P. mume 'Bongo' is presumably an example of this combination...See Moremy hydrangeas leave turning red brownish without any sign of flowering
Comments (2)If you are growing these plants in just 100% peat moss, then it is extremely likely you do have nutrient deficiencies - peat has virtually NO nutritive value. But this is very often the case with any container grown plant - container 'soils' generally have components that possess minimal, if any, nutrient levels. All nutrient needs must be supplied by the grower via fertilization. But there are other reasons aside from nutrient availability than can affect blooming, including the age of the plant, seasonality (the plant's internal calendar), vernalization (an appropriate chill period) and how it was propagated or if any pruning has been done. It sounds very much like your set-up is similar to that of greenhouse grown hydrangeas and greenhouse grown hydrangeas tend to be on a rigorous course of fertilization, growth hormones and light/temperature manipulation to encourage them to bloom early and out of season....See MoreFlowering Dogwood Leaves Turning
Comments (4)I've lived here for 31 years and ever since I've been here the dogwoods SLOWLY start to turn sometime in August. Depends on the weather, the hotter and drier, the earlier they turn. This year this part of TN looks like Ireland, but the dogwoods have a tinge of red. Their color here will peak mid Oct, so a long color season for the dogwoods. Kousas wait til fall to turn....See More- 8 years ago
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