Some floral photography notes:
1. I NEVER use flash. NEVER.
2. When I'm taking super close-up (macro) flower pictures, I ALWAYS use a tri-pod. ALWAYS. (and when I don't, the picture is blurry every time).
3. I especially needed a tri-pod for these particular photos, because it was near twilight, thus low light.
4. Low light means I need a slower shutter speed (in order to let in more light), but because it was windy outside (it's always windy here, sigh.) I needed the shutter speed to be fast enough to "freeze" the action. So to buy a faster shutter speed, but still let in enough light (because I'm not using the flash, remember!!), I bumped the ISO to a higher number (in this case, from 100 to 400).