Hydrangeas are usually given on the 4th wedding anniversary to symbolise appreciation.

Hydrangeas bloom seasonally and typically start to bud around mid-summer or late summer. However, a newly planted hydrangea may take 2-3 years to bloom.

Regular hydrangeas bloom once per season, while reblooming varieties produce a second set of flowers later in the season on new stems. For hydrangeas, deadheading is about making the shrubs look neater, and focusing plant growth on roots and leaves instead of seeds.

Blue Hydrangeas Blue hydrangea flowers symbolize apology, regret, and forgiveness, so they're the perfect gift if you're looking to make amends with a loved one.