View Full Version : Raised Patio with top finished in grass?!?

4 seasons lawn&land
11-25-2009, 06:53 PM
Just a wierd thing that popped into my head that I thought would be really cool. Doubt anyone has ever seen this. I would'nt think it would cause drainage issues with just a few inches of top soil on top of the base.

11-26-2009, 04:41 PM
well to do grass properly you'd want more than a few inches of soil. And I would have to wonder where excess water that gets onto the soil would go, so you would need a drainage plan of some sort.

4 seasons lawn&land
11-26-2009, 05:58 PM
I get by okay on 3 inches often. More is better when it comes to top but I thought 3 would work to both support grass and not affect drainage. Retaining walls have grass up to them. A raised patio is a square retaining wall.

11-26-2009, 06:07 PM
but in a natural setting grass has more than 3 inches of soil beneath it, the soil will soak up the added rain when we have the rain storms that last a few days. so in your raised patio with grass, where does the extra water go?

4 seasons lawn&land
11-26-2009, 08:08 PM
yeah so I guess you might not get enough water? Maybe if there was an irrigation system then. Otherwise i guess it might die.

11-26-2009, 09:36 PM
that didn't really answer the question I posed. If there's no drainage for the area that has grass, what happens to the extra water that the grass isn't going to use? It will drown.

4 seasons lawn&land
11-26-2009, 10:01 PM
what is making the water stand? I dont follow. A raised patio. If anything the water is going to go pass the roots to quickly with all the aggregate under the soil.

11-26-2009, 10:54 PM
I suppose it depends on what you have under the soil. what's you're patio sitting on?

4 seasons lawn&land
11-27-2009, 06:31 PM
raised patios get built up with aggregate.

11-27-2009, 06:55 PM
it might look nice but high maintenance, mowing it, set the grill, hard to use after rain, etc. etc. it you really want grass I'd use the turfstone pavers.

11-27-2009, 08:17 PM
aggregate like what, be specific, are you talking gravel, sand, what?

12-01-2009, 08:24 AM
usually a crushed gravel or hard pack (stone -3/4 and stone dust mix) to build up behind the wall. you can grow grass on a raised patio with no issue we do terraced stone walls all the time. same principal

12-01-2009, 08:42 AM
A lot of old wealthy estates have this.

12-01-2009, 11:54 AM
Use artificial turf I used some left over scraps for this area i made for my kids I love it.