Bigleaf hydrangea 'Harrow's Blue'

Try to plant in a location that enjoys partial sun and remember to water often. Harrow's Blue is generally regarded as a hardy plant, so it can be safe to leave outdoors for the majority of winter (although if in doubt, using a row cover is often a good idea).

Harrow's Blue is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.