With most perennials, the party’s over once the flowers fade—but not with the Bigleaf Hydrangea (Mophead). Those spent blooms are actually a total highlight! You can snip them for gorgeous fall bouquets or just let them hang out in the garden for some winter interest.
How long do Bigleaf Hydrangeas actually bloom?
Generally, these beauties will keep your garden looking colorful for weeks on end. While the exact start of the blooming season depends on the specific variety, most start showing off in June or July. You can usually count on those vibrant flower heads to decorate your yard well into September or even October.
Do faded hydrangeas need special care?
As the blooming season winds down in late fall, your hydrangea’s appetite for nutrients drops off significantly. You can put the fertilizer away until next spring. However, since Bigleaf Hydrangeas are only moderately hardy, you’ll want to start thinking about some winter protection to keep them cozy.
Can I just cut off the dead flowers?
You definitely can remove the wilted flowers. Many gardeners prefer to gently snap or pinch them off rather than using shears, as it’s a bit easier on the plant. That said, pruning after they bloom isn’t strictly mandatory.
If you see wilted clusters early in the season, go ahead and remove them. This encourages the plant to put its energy into new buds, leading to a longer and more lush flowering period. Plus, with the right fertilizing routine, you can support the blooms and even influence their color!
Toward the end of the season, though, it actually makes sense to leave the dried flower heads alone. For one, they act as a natural shield, protecting next year’s buds from frost damage. Secondly, those skeletal blooms look stunning covered in frost and add some much-needed texture to a sleepy winter garden. Only snip what you need for indoor dried arrangements or decor.
The Quick Essentials:
- Blooming starts: June or July
- Blooming ends: Between September and the first frost
- Early-season tip: Snap or pinch off spent blooms rather than cutting
- Fall/Winter tip: Leave dried flower heads on the plant for protection and winter interest
Pro Tip: When you are cleaning up your hydrangea, be super careful not to damage or cut off the new buds sitting right below the old flower heads—that’s next year’s show!
