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5-1-1 mix, hard water deposits & less lime?

Posted by spaceman13 6b (My Page) on
Thu, Jun 6, 13 at 23:00

I have very hard water, and get the nasty white deposits when I have to supplement Mother Natures allotment of precipitation in the dog days of summer.

I'm planning on hooking up a rain collection barrel when I can afford the parts an a ladder to borrow and time to hook them all up.

In the meantime, Can/Should I reduce the amount of lime added to my 5-1-1 to compensate for the eventual hard water build up?

if so, can/should I add lime to raise the Ph of a planted pot when I get the rainwater setup finished?

Finally, can/should I flush the hard water deposits with rainwater?


Follow-Up Postings:

RE: 5-1-1 mix, hard water deposits & less lime?

I don't think you should leave the lime out. It has two purposes: 1) to raise the very low pH of the pine bark and peat, and 2) to supply calcium and magnesium that most fertilizers don't provide. Your hard water will take a long time to raise the pH. If you're concerned about it, you can add some white vinegar to the water to bring it down. You would need to test the pH of your water, then add vinegar a tablespoon at a time, and retest until the pH drops below 7. I have very hard water and all my clay pots have those deposits. I add a tablespoon of vinegar to my water when I can. I use a hose in the summer because I have way too many containers to water to do each one from a watering can every time. I really don't think my plants are suffering from the hard water. Check the pH of your rain water. It's likely to be better, but with pollution, it could be too acidic.

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