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PH levels of peat compost
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Posted by jeremyp 8 or 9 (My Page) on Wed, Jun 24, 09 at 12:47
| My elderly neighbour has some runner beans planted in a large pot; the first growth got to about 3 feet then died; a second growth the same.
He planted then in a peat compost; the same has happened with his son's beans. I believe runners like their PH towards the alkali, and wonder whether the compost is the cause of their problem. |
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RE: PH levels of peat compost
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- Posted by ornata London UK (8/9?) (My Page) on
Mon, Jul 20, 09 at 7:03
| As I understand it, commercially available peat-based composts are usually adjusted to be slightly alkaline. That's why the advice is not to plant calcifuge (lime-hating) plants in them but to use a specially formulated lime-free compost. So I'm not sure the compost is the problem, although some batches of commercial potting compost can be of poor quality. |
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