my property backs against a "native growth area", that's filled with
Himalayan blackberries (non native), native blackberries, raspberries,
salmon berries, and vine maple. this small area of greenbelt seems to be
where all the water drains from the neighboring farms, and this water then
pools in the back part of my lot. when the house was build last year, the
back area was cleared and planted with pasture grass, and turns into a mucky
mess every fall/winter.

i was thinking i could plant it with some water loving, native plants.
plants that will not become overrun by the blackberries that will surely
spread there if we stop mowing them down. i'm not allowed to plant
non-native species against the greenbelt, which is fine with me, i'm just
concerned that whatever i do plant will be choked out by the blackberries.

i basically have three objectives for this project...
1) suck up some of that excess water.
2) provide some cover for local wildlife.
3) block some of the view of the neighboring farm.

i don't want the area to look "planted", i want it to look natural. i just
have no idea where to start.
the area is quite sunny, with rocky clay type soil.

how does one go about giving their land back to nature, without inviting the
invasive plants next door? suggestions? recommendations?

thanks,
Kelly Culp
Snohomish, WA
zone 8a