Zinnias spacing and control of volunteers help please
I keep reading about all the wonderful things y'all are doing with hybridyzing, etc. Here's my situation: have tons of zinnias, all sizes, shapes and colors, that volunteer in my gardens. They're wonderful and the butterflies adore them. BUT I'd love to trial some of the ones I've seen here. How can I control all the volunteers?
I'd also like to know what you recommend re spacing. Mine that are crowded now are getting leaf diseases.
Your advice will be so appreciated.
Rosie, Sugar Hill, GA