Newly Planted Red Salvia Leaves Are Shiny Metallic Dark Color

Question From: L. Rumler - INDIANA
Q: Hi there. I just bought my first set of red salvia plants. K planted them outside on a warm sunny day. That night it rained and it is still lightly raining. I checked today and the tops of some of my leaves are shiny metallic like black color. Is this possible sun burn? Not finding many answers online. Thanks!

A: If those plants came out of a green house they have not been hardened off so they may have suffered both sun burn or wind burn, Best And Happy Yardening, Nancy