Quality foraging

[maiden ice]

I want to forage Osmium quality mangosteen for my guardian mural. I just want to ask if there is anything I can do to increase my luck with the quality of my foraging?

[sacred marsh]

the higher your heritage rank are (completing offerings) the more the chance you got higher qualaity
you can also use slime of transmutation to increase quality of any item that has quality (except seeds)