In general there are two types of herbs that can help enhance shukra dhatu, and hence boost fertility. First one is called bringhana, which enhance shukra dhatu by enhancing all the seven dhatus in the body. Vrishya specific food and herbs help in enhancing shukra dhatu in particular.
Because the first six dhatus are the raw material for forming the reproductive dhatu, all of the dhatus must be completely healthy in order to form healthy reproductive tissue. That’s why the bringhana diet, which nourishes all the seven dhatus, are so important if you wish to conceive.