Planted Genetically Identical Roses in Three Different Container Soils
westes Zone 9b California SF Bay
3 years ago
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westes Zone 9b California SF Bay
3 years agolast modified: 3 years agoRelated Discussions
Container soils and water in containers (long post)
Comments (158)Al and Nathan, I hope that you don't mind my sharing a humorous story about Turface, that really highlights your points and underscores how respected a product Turface is in the industry. My son is a Turf Grass Agronomy major at a large Southern university, and did an internship last spring/summer at one of the major league baseball spring training facilities in Florida. Turface is used for excess water on the fields that occurs during rainstorms, especially those "popcorn" showers (downpours) that occur frequently in Florida. It has helped prevent many a game "rainout" due to its effectiveness. It takes many bags of Turface to do this (for one game), which can become a bit pricey---so it's a protected commodity in the baseball industry. During one sudden torrential downpour, the Grounds Crew quickly pulled the tarp over the infield, and then took cover in the visiting team's dugout to wait out the storm. The Turface bags were kept to the side in the visiting dugout, near where the Grounds workers were standing. The visiting team's pitcher had a bad inning just prior to the rainstorm, and came into the dugout kicking and throwing things, as they sometimes do. As he looked for things to use to vent his frustration, he eyed the bags of Turface to the side, and the Grounds workers caught his glance, and could tell that he was tempted to kick them, also. They immediately, in *unison*, said "don't even think about it!". Throw your glove, knock over some bats, kick the bubblegum containers over, but don't mess with the Turface...unless you want to take on the Grounds Crew... :)...See MoreContainer Soils - Water Movement and Retention XVI
Comments (164)Hi Al and others, I would appreciate advice on saving sick/dying Picea glauca, in pic.1, please. I bought it on post Xmas sale and it was ~50cm tall, looking healthy, with very bushy top. I repotted it without much root cleaning to keep most original soil with fungus, which I read Picea, like other pines, needs. I planted the rootball with old soil into gritty mix, mostly pine bark fines with seramice, with a bit of gravel, see in pic.2 very "gritty" indeed :); trunk is ~1/2" at the bottom). I used a biggish pot to let it grow freely for a year or two. I also cut the top to encourage lower branches growth but it never happened. Water it when the pot feels light, ~ weekly (it is early autumn here in Sydney) by bottom watering in a bucket, then drain well by keeping the pot at ~45 degrees for a while. Use diluted Nitrosol liquid plant food every two weeks. Keep it on sun for 2-3 hrs, then half shade. Despite all my care (or coz of it ? :), the picea never showed any new growth but started developing warning signs for last 2-3 weeks. Those few thin branches started dying. Their stem turns from brown to greyish-green and gets soggy before dying. See in pic 3&4, that branch in front which is dying now, with grey stem. Other branch died a few days ago. Only three normally looking branches are left. But I am afraid they are facing same fate. Anything I can do to rescue my future picea bonsai at all? Thanks and cheers, Sergey...See MoreGood garden soil makes poor soil for roses in containers?
Comments (42)The reason you can't trust the volume of nursery pots, Jim, is that those black nursery containers are all "nominal" sizes. That means the volume of the pots is vaguely related to the stated gallon size. A "5 galllon" nursery can is 10.5 in. diameter and 12 in. tall. My online calculator says that is only 3.75 gallons if you pot 2 inches from the top of the pot. That isn't large enough for any rose past the first year or so if it puts on vigorous growth. The foot stomping is an old landscaper practice. It's just a cheap way of determining settlement without taking the time to water a plant in. I wouldn't do it. Water your plant in to settle the soil. I've seen people planting roses into dry potting soil. I wouldn't do it. Many potting soils have peat moss which sheds water once dry. Those of you in climates with steady rain year round may not have this problem, but in the desert West, once peat dries out, it takes a concerted effort to dampen it. I open the bag of soil, stick the hose in, fill it up and mix. Then I pot with dripping wet potting soil and also water it in. It's mud pies for grownups. It assures that the soil comes to the optimal height in the pot (about 2 inches down) and fills major air pockets. I unpot roses all the time and have never found an air pocket. I don't drop pots on purpose. Our summers are too hot to grow a lot of roses in pots well. We can't keep the roots cool enough through June and July. I overpot extensively. A 3 x 3 rose goes in an ornamental pot that is 22-24 inches high. I use various decorative pots from the big box store and always buy the biggest size. Why? They bring to rose up to height and look more in scale with a landscape. It's funny how a pot looks big in a store and miniature in the garden. Also, with those big pots I'm approaching the 15 gallon actual size I find any healthy rose needs. I do a seat of the pants volume-of-cone calculation to guesstimate the volume of the pot, taking into consideration the potting soil is probably 3 inches from the top of the container. Here's a nice online volumetric calculator. http://www.online-calculators.co.uk/volumetric/conevolume.php...See MoreContainer Soils and Your Plant's Nutrition
Comments (132)Incredibly elaborated & very instructive discussion on a subject on which I clearly need constant enlightment. Al, thank you very much for sharing your knowledge & experience. Your way to approach the growing experience is really inspiring. I already did my very first 5.1.1 mix, a great experience. It felt like I was doing the right thing for my trees. The group overall is really great, people from so many different places coming together by their passion for plants:) I'm planning the 2017 spring bare-root up/repoting of all my plumerias and I plan having them all going into the GMX medium. Could you please help mewith some questions? 1) Turface = is unheard of here in Belgium/Brussels area. Can I replace turface with pumice at equal proportions? What do you think about mixing Pumice 4 + Bark 3 + Granite 2? 2) Crushed granite = also hard to find with the size required by the GMX. If I replace the granite with perlite the ingredient distribution in the GMX should also change? What do you think about mixing Pumice 4 + Bark 3 + Perlite 4? 3) Is the volcanic lava (3 mm size) a good replacement for the crushed granite in equal proportions? Thank you very much for your time. Regards, Michael...See Morewestes Zone 9b California SF Bay
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