White Snaps

I put in flat of white snapdragons in the Moonlight Garden early last fall so I would have some blooms during the holidays. They immediately went somewhat dormant and I thought they were a lost cause this year until this week when I went out and they were blooming profusely. I really like them because they add a sparkly vertical (albeit short vertical) element to the beds and the rabbits that are abundant here, don't seem to like the taste of them. The question is now should I add some more to enhance the ones that are already blooming for the upcoming garden tours next month or should I look for white annuals that will be happier in the warmer days of summer? Such decisions!