Jacket Weather for Plants — Is It Cold Enough to Cover?

It's cold. Should you cover your annuals, or let them tough it out? Everyone wants to look cool and skip the jacket — but sometimes, it's just too cold. You bundle up. Plants are no different.

Some can take it. Some need a little protection. And some? They're not making it through the night. Here's how to know what you're dealing with.

This is the danger zone. Water inside the plant freezes solid. Cells rupture. Game over for most annuals.

Cover them — or bring them in. No debate.

A gray area. Damage is likely, especially on tender plants. Some bounce back. Some don't.

If you like the plant, protect it.

Looks worse than it is. Ice forms on the outside, but internal damage is limited. Many plants handle this just fine.

Cover if you want to play it safe — but not always necessary.

Let's be honest: we're not in the clear until about May 10. Yep — right around Mother's Day. That doesn't mean you have to wait. It just means you need to pay attention.

Reference: Purdue University Extension — Indiana gardening resources