Besides the plants already mentioned you can try.
Gutter planting system.
The containers soak up water from the rain gutter using a net cup on the bottom of each container.
Our moving gutter system is designed to reduce labour energy and water consumption thereby both reducing your production costs and your environmental footprint.
Succulent plants generally have spreading roots and grow perfectly in shallow containers such as a portion of gutter.
I ve seen others that run back and forth diagonally to create an easy watering system.
Rain gutter grow systems rggs are self watering containers on steroids and they are new ways to grow plants that reduce watering and reduce weeding.
You can use plastic buckets barrels or grow bags for containers.
Check out rain gutter grow system magazine by larry hall see lots od cutting edge container gardening http flip it fzi8uk also our face book rain gutter gr.
Using our mgs will enable a production increase of 25 30 per square meter as opposed to conventional greenhouse table systems thereby heavily reducing the energy consumption per plant.
And by that i mean well they are all dead big gardening fail.
The best garden gutter plants are those with spreading roots instead of those that continue to grow downward.
Of course some people also have plants growing out of their rain gutters that have gotten clogged with debris ok that s a joke.
You ll need pvc white gutters and a few other materials to complete this project given here.
This system is relatively inexpensive and easy to build.
Some people make hanging gutter gardens that are not attached to a wall.
Gutter gardens can also be used as a privacy screen plus they provide planting space.
2x 10 foot long treated 2x4s 1x 10 foot long vinyl rain gutter 2x end caps for the gutter 5 gallon food buckets 3 inch net cups inch or inch float valve power drill and hole saw scissors or knife.