Terrace and driveway

On the terrace, on the other hand, there are constantly ants and constantly sand, which they then bring up. And the grass also grows at the edges.

With proper crushed sand, it is not possible for anything to come through from below. Made it yourself? Because if properly compacted, nothing comes through.

From below, when professionally installed, nothing ever grows through (split/crushed sand). What you see in the joints comes from above and is inevitable, unless you fill the stones with cement-like joint material (which is often done with small bricks, for example).

Ask the landscape gardener.. he plans his logistics.

As long as you don’t have to pay for it in the end, it can be the same to you. Otherwise, there is no reason to take up the recycling and relay it.

No, both professionally done by two different garden landscapers...

Whether the lawn comes from below, above, left, or right is unknown to me... But the fact is, with gravel, nothing at the edge with sand lawn

grass at the edge? the edge (the last row) is framed with concrete. otherwise, you can easily snap the edge off when stepping on it.

No, not the runner row but the next one...unfortunately I scraped out the joints last week so I can’t show how it looked...and the ants are everywhere front, back, and also in the middle...they are repeatedly repelled successfully but usually only lasts for one season

that is of course annoying. and grass grows in the 1 joint behind the curb because you sprinkled grass seed on it when sowing the lawn from below nothing grows through there. on the joints themselves, anything can grow. that is unavoidable and has nothing to do with the substrate. the only help is fewer joints or to cement it.

No, I definitely did not do that, if only because it was sown with a roller and everything was pressed down immediately....the first year everything was great...and even if it should come from above, the problem with the ants remains...with the gravel there are none, with the sand plenty.

The amount of joints is also irrelevant, whether I have one joint or ten...if the base layer allows growth, it will grow even with few joints...

For me, the only difference is really the base layer...all the same stones...the same joint sand in it...both were carefully raked and so on and there is also growth everywhere around the stones, meaning grass.