Basically, the edelweiss is a very easy-care perennial: the undemanding high mountain plant requires neither fertilizer nor much water. On the contrary, the plant prefers lean living conditions - just like in its natural habitat. You also only have to cut the edelweiss a little.
Wild edelweiss is a nature reserve and must not be cut off
Remove faded plant parts
The only pruning measure is to cut the edelweiss back to about a hand's breadth above the ground after flowering. Withered plant parts rob the perennial of a lot of strength and should therefore be removed - unless you want to obtain seeds yourself and multiply the edelweiss. Sow the mature (and previously stratified!) seeds in the following spring, at best in March.
tips
After the autumn pruning, you can mix in some lime that is carefully worked into the potting soil. However, be careful not to damage the delicate roots.