How to Prune pearly everlasting?
Cut down in winter

pearly everlasting · Anaphalis margaritacea
Also known as: American cudweed; cottonweed; Indian posy; lady-never-fade; lady's tobacco; life everlasting; moonshine; none-so-pretty; pearl cudweed; poverty weed; silver buttons; silverleaf
Grow in a sunny spot in moist but well-draining soil
Cut down in winter