Don’t Plant Your Annuals Too Early (Or Too Late): The Exact Timing That Makes All the Difference

If you’ve ever planted beautiful annual flowers only to watch them struggle—or worse, die overnight—you’re not alone. Timing is everything. In Southern Ontario, especially around Hamilton, Waterdown, and Dundas, knowing exactly when to plant annuals can be the difference between a thriving garden and a frustrating season. Let’s break it down in a simple, practical way so you can get the most out of your garden this year.