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Volcanic rock?
On Nov 27, 2:06 pm, "Duncan" wrote:
Something else that no one mentioned is that volcanic rock is often high in flourine. hmm, could that be what's causing the icky black spots on the back canes of one of my dens? (the plant is otherwise growing like a bamboo and produced four flower spikes last summer, so they're apparently not harming it, just ooky-looking.) But the biggest problem is the salt build up. SuE they get fertilized every other week or less; in between, the pots get flooded with plain water. (and when they get ants, the plants get stuck in the sink with the faucet running on them full force for about ten minutes every few days. --j_a |
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