Which natural stone slabs are less prone to moss/discoloration?

Hello everyone,

in a few months I will be having the terrace slabs and garden paths relocated. I really like light-colored stone. I have experienced that open-pored stones (e.g. sandstone) become extremely overgrown with algae and moss over the years, especially in shaded areas. New sandstone looks great, but if you don't regularly clean it with a pressure washer, you won't enjoy it for long.

Can anyone recommend types of stone that hardly suffer from algae infestation (e.g. granite or something)? Are there also light-colored types of stone that are suitable?

P.S.: I am aware that the stone can also be sealed. However, that is too much effort for me, especially since the sealing has to be renewed regularly.

Algae and moss grow on every non-polished surface in damp, shaded corners. And the more often the natural stone is cleaned with the pressure washer, the faster algae and moss settle again. Natural stone only looks freshly laid if it is cleaned monthly. This also applies to concrete, by the way.

I can only confirm that. In the end, you have to yield to nature a little.

I understand that. Nevertheless, there is also a difference in the types of stone. Sandstone, for example, is very porous, and in shaded areas, a green slippery film sometimes forms. A neighbor laid granite, and the effect is much less. The gray granite just doesn't look nearly as nice as the light sandstone (in its original condition).

The more porous a stone is, the better mosses and lichens can establish themselves. The differences are not significant for people who have little tolerance for growth, as they have to take action anyway to fulfill their desire for bare stone. High-pressure cleaning is the short-sighted option; working with a sealant is more effective.

We have flamed gray granite and also green growth. For our new building, we were now thinking of [Feinstein], but do not know if that is better.