Keep in mind that hydrangeas flower in new growth so it can be pruned by a third, if needed. Best to prune in early spring (February – March) after the worst winter frost but before they start to grow vigorously.1
Vanilla Strawberry is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.hydrangea
1 hydrangeaguide.com/vanilla-strawberry-hydrangea-2/