Mrs. Augie saved some lantana seeds from one of her plants last fall. She kept them in the refrigerator over winter. I put 16 of them in starter cells almost a month ago and so far none of them have sprouted.
Do they simply take forever to germinate, or was keeping them in the cold all winter the wrong thing to do?
Interesting question, and I don’t know the answer. Somehow I view lantana as a Southern plant, because it grew in the wild when grew up in Florida. Here in zone 6, it is an annual.
One thing I learned recently is that some seeds either need to soak overnight and others need to be rubbed with gritty sandpaper to wear down the outer coat. I don’t know if any of that applies to lantana seeds.
Well, they DO take 2-3 WEEKS to germinate when growing from seed. They also need SOAKING beforehand, so your results are anyone’s guess.
I currently have a whole flat of Nasturtium that REFUSE to sprout. I got ONE (!) from 16 seeds planted. Grrrr!
I’m pretty sure in ‘The Biz’ they propagate Lantana from stem cuttings - they are kind of ‘woody.’
Anyhow, here’s a primer on how to grow Lantana from seed:
https://www.gardeningknowhow.com/ornamental/flowers/lantana/how-to-propagate-lantana.htm