"Davy" wrote in message
om...
As mentioned in my previous post I am constructing a 16 sq m butyl-lined
wildlife pond in Wiltshire, England. I intend having a shallow shelf all
round the edge for marginal plants. The pond will be surrounded by a
sloping pebble beach.

I hope you have some way to keep run-off from entering the pond with this
sloping pebble beach. If not the extra nutrients from your lawn (including
anything toxic you treat it with) will enter the water causing serious algae
blooms.

My problem now is in deciding what depth the shelf(s) should be. The
books
I have list marginal plants which seem to require just 2-3" of water. But
irises, and similar large marginal plants, I understand, require a large
basket - perhaps at least 8" high?

Use your tallest post to judge. Our shelves are at a level to hide the pots
underwater. You can always set smaller pots in bricks.

A basket that high would protrude from
the water. But if I make the shelves deep enough to cover 8" baskets then
the water would be too deep for smaller marginals.

Use a brick or two to raise them up.

Anyone able to offer any experience?

thanks

Davy
--
KL....
Frugal ponding since 1995.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
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