Creating seasonal pond #540876 - Ask Extension


Creating seasonal pond #540876

Asked January 11, 2019, 1:42 PM EST

I would like to create a small seasonal pond in a fairly exposed area that already gets fairly waterlogged in the winter. Should I use a liner? How much soil should be on top of the liner for plants, etc? How long should it remain wet in order to support breeding frogs? What plants would work well in these conditions?

Clackamas County Oregon

Expert Response

Thanks for your questions. There are several considerations for you to reflect on as you take this on. I’m going to refer you to two OSU publications that detail them: and I think these will answer your questions, as well as help define your purposes. If you need more information, don’t hesitate to write back. Good luck!
Kristena LaMar Replied January 13, 2019, 12:04 AM EST
Thank you, ivI' read both of those, but there isn't any practical information about seasonal ponds specifically.  I'm not interested in having a year round pond. 
The Question Asker Replied January 13, 2019, 12:51 AM EST
Sorry. Your question about putting down a liner threw me off, since you don’t do that with tempory/seasonal ponds. These are often called vernal ponds, and, since they are often constructed for wildlife preservation/management, there is not a lot of ‘how to’ information for the homeowner. In fact, the following was all I could find: It is long, but thorough. Hope it is more helpful.
Kristena LaMar Replied January 13, 2019, 10:59 AM EST
Thank you, that's what I was looking for. 
The Question Asker Replied January 13, 2019, 12:28 PM EST
Great! And you’re welcome!
Kristena LaMar Replied January 13, 2019, 12:31 PM EST

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