want to add groundcover to steep mountain, what glue?

Yes, Elmers should be fine. Carpenters wood glue even better. Or 3M Super-77 spray adhesive...

Brush on full strength elmers white glue, then sprinkle on the foam. After you get the coverage you want, let it dry and then you can gently spray diluted white glue(scenic cement) to fully secure.

 

Depending on what your "planting", stuff usually doesn't grow well on a 90 degree slope, so bare spots are ok.

Take a sheet of paper and foil it in half to make a "V". Place the groundcover in the paper "V". Put the paper up to the area that you want covered  and lightly blow the groundcover onto the glue. Move the "V"ed paper around as you blow.

Grass blown on to side of hill. Grass only stuck to area's with glue on them.

 

I use border adhesive that is cheap at Lowe's or Home Depot. Spread it around with cheap throw away paint brushes that can be bought there also. Ed P.

thanks for the blow on tip guys

While I have used the 'blow it on' technique too, I sometimes use a different method.

 

I create a 50-50 glue/water mixture in a throw away cup and dump the ground found right into the mixture and slosh it around to saturate it.  I then just use my fingers to gather up some and press it onto the side of the hill, to which I have already applied full strength Elmer's.  It takes a day to 2 to dry but it does stay in place.

 

- walt

Use very fine powders for best results on shear facings. On those with slopes go a bit heavier. This is with the blow on techique

 

Some of us don't use glue. Makes it a lot easier.

 

 

 

 

You have been given some good ideas.Here is another.Since vegitation will not grow on a 90 degree surface for real, why not apply some nutral color textured spray paint.Add your own color or some type of wash after its dry?

I have used ground colored latex paint that got real thick, brushed it on then applied the ground cover.  After it dries, spray the scenic cement to set it.  The thick paint serves as an adhesive and you kill two birds with one stone so to speak.  The Woodland scenics 'underbrush' ground cover size applied with fingers to the thick paint has worked the best for me on steep slopes.

For smaller clumps of ground cover, I use straight pins to hold the cover in place until the glue dries.

 

Another way is to glue the foliage to a piece of dark colored fabric horizontally at the workbench using either full strength white glue or hot glue if you are in a hurry.

 

When the glue is set, hot glue the entire piece of fabric with foliage in place on the hillside.

 

But, remember, as others have said, the steeper the slope the less soil and the less chance for vegetation to hang on.

 

 

 

 

 

Jim