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Banana peels and Coffee grounds on roses
On Jul 7, 9:47*am, Billy wrote:
In article , *Kay Lancaster wrote: On Thu, 5 Jul 2012 22:46:45 -0700 (PDT), Higgs Boson wrote: I save coffee grounds from OP (along with my tea leaves) for roses and other decorative plants. *He says banana peels are also good for roses. Trying to save myself misdirected effort, what is NG opinion: Need to scratch in and water coffee grounds? *Or bury? *Or just leave on surface? Toss 'em in the compost heap; add compost whenever you've got some and it's the growing season. Coffee grounds are fairly acidic... if you've got an acid soil, and are heavy with the coffee grounds, you may actually push the pH too low for your plants. Moderation in all things, except maybe compost. g Roses are happiest with a pH of about 6.0 to 6.5. Kay Sensei, I have lost young annual plants (squash) after mulching them with coffee grounds, but I have a web site that says that coffee grounds aren't acidic, at least not significantly (6.5 and 6.8). http://www.sciencedaily.com/releases/2008/07/080707171641.htm Caveat: http://groundtoground.org/tag/coffee-grounds-ph/ This site says that coffee grounds are about 2% nitrogen, but that seems too low to burn plants. In any event, don't perennial plants (such as roses) prefer soil on the (fungal) acidic side, and vegetables (annuals) prefer basic (bacterial) soils? That said, wouldn't it be as beneficial to mulch perennials with the grounds and bananas, and to top with straw to avoid decorative, esthetic problems? -- [...] Perhaps, but I don't want to bother finding a straw source & dealing with possible imported seeds. Would small size ground cover mulch do as well? I buy bags & bags of it and use along my rose paths as well as other decorative planting areas to conserve water and discourage weeds (hah!). HB |
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