CP Bog: run-of or groundwater from drainage introduce +nutrients?

njbiologyMay 6, 2011

Hi,

I'm working on creating a small garden for cranberries, sundews, and purple pitcher plants.

I just dug a 4' x 5' x 2' deep hole in my yard (full-sun) and placed into the hole a 45 mil. epdm rubber liner. Then I filled it with peat and construction sand. I did not perforate the rubber liner as some have recommended for drainage.

1. I'm concerned that if I don't keep the lip of the liner's edge above the surrounding ground-level, rain run-off entering into the "bog garden" will bring with it a significant amount of accumulating nutrients over time.

2. Due to rock in the ground, when it rains heavily, the soil in the yard retains groundwater. If I were to perforate the liner, I suppose the nutrient-rich ground water would enter into the bog and, as I understand, purple pitcher plants will not thrive when the bog garden contains nutrients; yet from what I've seen in nature, they thrive on the edge of acidic ponds (which must have a good amount of nutrients.

Thanks,

Steve

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taz6122(N.W. AR.6b)

Did you have a question?

    Bookmark   May 6, 2011 at 2:55PM
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tommyr_gw

Steve,
Keep the liner ABOVE ground. No drain holes if sunk in ground.

    Bookmark   May 6, 2011 at 9:24PM
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