Hydrangeas in Central Florida
Skyway Gardens
18 years ago
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Skyway Gardens
18 years agoRelated Discussions
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Comments (34)" I wonder how one would do in pure muck soil where taxodium grow, if inland enough where saltwater flooding isn't a problem." Not well! It would last about a week in summer before the root rots would take it out! In the rest of the southeast where they do grow, they definitely only grow on well drained soils. I have had one die from root rot. In spite of being hexaploid, they are not invincible. FWIW, there's a 'trick' about the PNW - coastal CA climate. I saw rhododendrons almost in the bottom of swales at the old Greer Gardens in Eugene, OR.* You would NEVER see them growing somewhere like that in PA, NJ, or MD. But...the time plants like rhodies and redwood are most susceptible to root rot organisms is in the summer. That's when most of those disease organisms grow best...at temps >= 15C. I see redwoods in the native environs growing in soil that appears year round damp, but guess what? It's only going to be inundated with water, during California's wet winters! Likewise with the rhodies that would experience wet (but not underwater, mind you) soil conditions at Greer...only in winter! There's just NO WAY for Eugene to have 3" of hot wet rain in late July, on a single day, as we can have! (or, now that I think about it, at Sonoma Horticultural Nursery, which is called something else these days, the same is true. Although Polo did put some rhodies on the lowest plains of his property in impromptu little raised beds. That might be necessary because he was so mild in winter, root rot organisms could still grow well during the wet season.) Now that a nursery has supposedly grafted Sequoia onto Metasequoia, maybe people in the southeast can plant them in poorly drained soils with abandon. We'll see. * - although, TBH, it wasn't much to see and not even as nice as the peak of NJ Rarefind around the time Hank died in 2009, I'm glad I got to see it in 2011 and meet the famous Mr. Greer. Greer might have had rarer, more tender cultivars in zone 8a, but Rarefind had just more plants, and better displayed, period, in their 6b garden....See MoreNeed help identifying weed - St Augustine (Central Florida)
Comments (24)Yes, I recognize this is an old post, but for the benefit of others landing on this page... I'm 99% sure this is Creeping Beggarweed or Spanish Clover (D. incanum/D. laxiflorum). Mine produce a deep pink, almost purple flower. I spent an exhaustive afternoon in my back yard digging a ~6' x 6' patch of it out of my St. Augustine about 2 yrs. ago. I would compare the underground root system to that of Torpedo grass... invasive and virtually impossible to eradicate. My temporary joy of digging out the mother lode tap root (at least 10" deep!) was quashed when sprigs of it started popping up again. As the natural/organic method failed, I got some Roundup. The grass has almost fully recovered now; I get an occasional sprig though. Then I noticed it was invading a stretch of front yard near the street. Mother Nature sent Irma to help me with that area. Put the debris pile on top of it and by the time it was picked up, mostly everything was dead underneath. It made it easy to pull most of the roots out then. So for the sprigs that have survived both there and in back, I take a can with both ends cut off, slip the weed inside of it (Beggarweed and/or Torpedo), and try to protect the surrounding St. Augustine as I spray the Roundup. My condolences to anyone battling this... good luck!...See MoreCentral Florida & hydrangeas?
Comments (16)Watering the leaves helps spread the fungi so water the soil instead. Water the soil early in the mornings (6am) so the sun will minimize humidity levels. Allow space so plants do not touch and the air movements help dry things out. Replace the mulch with new mulch if the infestation is high. Pick up plant debris from underneath. Dispose of dried out leaves and spent blooms in the Fall in the trash. Make sure you are not overwatering as high humidity levels make the fungi feel comfy in the leaves, stems, blooms. You can deadhead the worst looking leaves (cut the petiole, not the stem from which the leaf originates). Use drip irrigation. Fungicides registered for the control of Cercospora leaf spot: azoxystrobin (Heritage; smallest application rate and largest repeat interval); chlorothalonil (Daconil); mancozeb (Dithane; Protect; othrers); myclobutanil (Immunox); thiophanate-methyl (Cleary's 3336) but as previously mentioned, these may be expensive products and, at the end of the growing season, I just prefer to take the above actions. I plunked for irrigation when my sprinkler system started giving me fits. Don't know exactly how much it helped but I have very little leaf spot now so all these things really help....See MoreWhat kind of tree is this? Central Florida.
Comments (6)There are some actual leaves in the picture. I’m pretty sure that’s what Embothrium was referring to, not the Spanish Moss....See Moreyellowgirl
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