Bill Spohn wrote:

not to mention if you till or even remove the sod the seeds that were buried
will now
germinate.



I have had good results with removing sod, planting whatever I am going to
plant, and then topping with at least 10 cm. of bark mulch.


Converting lawn to garden is not easy unless you dig it all out and
replace it with new soil, too many roots and seeds. There are are couple
thing you can do if you don't want replace everything, till it
frequently turn the seeds up let them germinate, till them under till
more up. Step 2, cover garden with black plastic, remove, till, replace.
Now IF you feel you have to plant this year get ready for continuous
weedy, do not plan a vacation this year, you'll be in this
grass-WEEDING. You can cut down by mulching or black plastic the rows
and/or between the hills.

Wait a year and you'll have a lot easier time of it.

Kevin