Zinnias are beautiful annual flowers that add a merry mark to any garden or windowsill. If you want to grow your own this year, you'll need to know when to plant zinnia seeds to give them the best chance of blooming.
Timing is everything when it comes to planting seeds, and zinnias are no different. We consider them to be one of the best flowers for raised beds, but you'll only be able to enjoy them if you sow the seeds at the right time. Too early, and they're unlikely to survive the frost, but too late, and they won't bloom in time for summer.
