Just the other day I noticed that some of my feverfew is still blooming. This after two nights that got down to 28 degrees with heavy frost. So if you’d like to see little white flowers here and there, be sure to plant some feverfew. There is double form and a single form. I like the double form best. It is a bit shorter and dries with more substance. However the single form may allow bees to reach the nectar and pollen more easily as the disc in the center is better exposed. It tends to be taller and can flop a bit but it is still attractive in a more natural setting. If your feverfew tends to get too tall for you, trim it back by 1/3 to 1/2. It will be shorter and bloom a bit later.