Why Michigan Petunias Develop A Sticky Coating Around Their Blooms
That sticky feeling on petunia stems and leaves isn’t a sign of a problem, it’s actually a built-in defense system. Petunias are covered in tiny, hair-like structures called glandular trichomes, and these structures secrete a resin-like substance that gives the plant its signature stickiness. This coating serves a real purpose. The sticky secretions produced by…

