Epsom salts and roses
marlingardener
16 years ago
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denisew
16 years agomarlingardener
16 years agoRelated Discussions
The Annual Epsom Salt Question
Comments (14)Just reinforcing wirosarian's point that, if your soil is already high in magnesium, applying substantial amounts of epsom salts is actively harmful. If your soil is low in magnesium, it is helpful. If you have used dolomite lime (the most common kind) to raise the pH of acid soil, that is a long-lasting source of Mg. Epsom salts would be the preferred source of Mg if a soil test shows both low magnesium and a pH above, say, 6.2. Plants use Mg in the chlorophyll molecule. The symptom of Mg deficiency is paleness at the leaf margins with wide bands of normal green along the central vein and several of the large lateral veins. The normal green forms a shape like a stylized drawing of a Christmas tree. The shortage of chlorophyll can reduce overall vigor. I doubt that extra magnesium would cause extra basal breaks. If a soil test or leaf symptoms show Mg deficiency, an appropriate dose would be 2-4 TB of epsom salt every few months....See MoreWhy is the soil turning green?
Comments (14)Hi, Ritug... If your new rose is a baby band, I would completely stay away from solid fertilizers (feeding it only sea tea) until it reaches at least 1'2" in ht. and has to have a very fat full (bushy) appearance...and I would only sprinkle just a bare 1/4 cup at the very most of alfalfa. I never put alfalfa down on the same week as I feed sea tea... Usually I skip the sea tea week and put alfalfa down right before I get heavy rains, that way the alfalfa type of fertilizer gets to "soak in" and get diluted. If it's just a newly planted bareroot, you did absolutely fine with your standard application....and MichaelG's suggestion is perfect for that... P.S. how is your baby rambler doing... My sick one now has 3 blossom buds and is looking really good, healthy and fat! with tons of foliage, I can't even recognize it any more! and my other band has eight buds... Hee-hee, my tiny band is supposed to be a regular-sized hybrid tea when it grows up; so right now it's like a miniature rose... But I am thinking in late July it should have regular sized blooms... Here are the most recent photos... May your rambler outdo mine in terms of having blooms prettier and! bigger! cheers.......See Moreepsom salts (magnesium sulphate)
Comments (39)About soil tests......if you have never had one it is not a bad idea to get one done just to see what you are working with. That is the only way you can determine if you have any nutrient deficiencies you need to address. (caveat: home test kits are pretty much worthless - pay the bucks and have a professional lab prepare the test). You don't do multiple tests around the property. You gather soil from a variety of areas (your prime planting areas) and mix it together in a single sample. Most labs will tell you how to prepare the test sample and will ask what you are growing - crops, lawn, ornamentals. That will help them customize your test results. Once you get the results back, they will tell you your current nutrient load and if you need to amend at all. Generally, the only addition recommended will be nitrogen as that is the most mobile and transitory of the primary plant nutrients and the one most often lacking. And adding organic matter - compost - is the easiest and one of the most environmentally friendly ways to add nitrogen to an existing garden. Additionally, compost provides a full range of other nutrients in a low dose, organic process that encourages a healthy soil biology and discourages leaching into groundwater as one encounters with synthetic nutrients (from chemical fertilizers). Compost also improves soil structure, loosening heavy or clay soils, improving drainage and adding a degree of moisture retention to very sandy soils. If used as a mulch it will supress weed development, reduce evaporation of soil moisture and provide insulating capacities. It does however make a rather fertile seed bed for windblown weed seeds so some monitoring is required. I guess you are all going to do what you are going to do but fwiw, there is NO scientific evidence that dosing plants with epsom salts/magnesium sulfate encourages blooming. There is absolutely nothing in the product that affects a plant's biological inclination to bloom or not to bloom. Understanding how necessary plant nutrients work - or don't work - would go a long way in dispelling some of these myths about "miracle" fertilizers (ie. MiracleGro and its cousins) and other miraculous plant potions....See MoreLiquid Iron
Comments (22)The problem with bone meal is it has calcium, and calcium INTERFERES with the absorption of iron. Same with lime and dolomitic lime, both have a high percentage of calcium. I sprinkled lime on a few-roses before, upper leaves became pale immediately, showing iron chlorosis. My kid had anemia (low-iron), and we gave her iron-pills. The instruction on the iron pills said NOT to be taken with calcium-rich foods. She has to take iron pills on empty stomach, and can't consume any dairy products until 2 hours later. Red-lava rock is high in iron, but it's slow-released, best in the planting hole .. when it's wet, it releases iron better. Topping with cocoa mulch, high in iron, produced amazing growth spurt on my roses with higher iron needs. The red-ones like William Shakespeare and Mirandy benefit most from iron-rich mulch like cocoa mulch. I get AWFUL result with iron sulfate, which burnt the roots of the plants that I tested. Iron is best in chelated form, or in organic-soluble, such as cocoa-mulch, or dissolved-red-lava-rock. I re-post the nutrients of cocoa-mulch below, note iron at 140, that's very high for a trace element. Cocoa mulch has 2.5 nitrogen, 1 of phosphorus, and 3 of potassium, and contains many micronutrients: ANALYSIS OF COCOA MULCH at pH 5.4 Total N % 3.0 Total C % 43.0 Below are mg per 100g: Phosphorus 1000 Potassium 3251 Calcium 575 Magnesium 488 Iron 140 Manganese 9 Zinc 11 Copper 3.5 Nickel 1.0 **** From StrawChicago, some pictures of my roses' growth spurt, when topped with cocoa mulch for iron, potassium, and nitrogen. Dark red roses like Mirandy, Oklahoma, W.S. 2000, and Lasting Love have a higher need for iron. The best growth spurt is William Shakespeare 2000 (dark red), see below for less than a week growth-spurt, that one is slow, unless given soluble iron via horse manure or cocoa mulch. It's 100% clean in weeks-long rain:...See MoreTaralyn
16 years agomarlingardener
16 years agoField
16 years agomarlingardener
16 years agodenisew
16 years agoKaren F
6 years agoroselee z8b S.W. Texas
6 years ago
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