By Enda
United Kingdom 
I am a pensioner who has just moved into a bungalow where all the garden is grassed. I have treated an area with a weed killer which does not harm the soil. I want to create a flower garden. Can I dig the dead grass into the ground or do I need to remove the grass sods?
Enda
15 Sep, 2012
Answers
This is the ideal, but I bury mine a spade depth down, grass side down and not much comes up again. (Unless its couch grass of course...)
15 Sep, 2012
Thanks for your comments
25 Sep, 2012
I would always lift the turf - if you have somewhere in the garden to do it, it can be stacked, green side down, and left to rot down. Makes good compost to go back on the garden in about 2 years. The risk with not removing the turf is that it isn't actually dead, so if you dig it in, you find clumps of grass growing in your newly created border. Plus its actually pretty hard to break it up sufficiently well to create a good tilth in the bed prior to planting.
15 Sep, 2012