| If you are anything inclined to respect environment, please DO NOT plant eucalyptus : they destroy soil texture, will eliminate most other plants, are not friendly to animals, and draw huge quantities of water... Not eco-friendly.
Not sure for the best plants to use, but before planting trees you could already have grasses grow, for they will provide a very dense root network, and offer better coverage of a large area.
An alternative is a natural fiber equivalent of geotextile, available at around 20b/m2, to use up until 60degrees slopes.
(have to look up the name in my documentation, will get back to you)
ST |