It's definitely time to think about the garden. Many of the brides I talk to want to use flowers that are seasonally appropriate: blooming at the time of their planned wedding day.
Using flowers that are in bloom is a great way to keep your costs down. There's no need to import expensive flowers from other parts of the world if what you choose for your wedding day is available locally.
It's also helpful in establishing your color theme. The variety of blooms are abundant, and you can be as creative as you like. A good florist will help you identify the varieties that will hold up to the demands of your event. There's no reason you should fear a bouquet drooping and wilted in your photographs... an experienced floral designer has the skill and knowledge to guide you through your flower selections.
To find the right florist, ask friends for recommendations, do your research, and if you're using a wedding planner ask them to steer you in the right direction. There is no shortage of ideas on Pinterest, Instagram, and myriad wedding websites. I have an entire Pinterest board where I pin bridal bouquets, just for fun!
As for me, I'm planning my flower garden. This summer I hope to have plenty of roses, peonies and hydrangea. The catalogs are on my desk... and the sketches are on paper. All I need now is a little more sun and a lot more time.
As an artist, I often find myself painting flowers from the market or my garden, wanting to capture their beauty in that very moment.