Rock Samphire is a fairly common rocky shore species, thriving in rock or wall crevices, although only in places where the impact of sea spray is still felt.

As rocky shores are very few on the Slovene coast and therefore in Sečovlje Salina Park as well, its suitable secondary habitat is the artificial rock shore. In Sečovlje Salina Nature Park, it can be found only individually on the outer sea wall at Fontanigge.