Hydrangeas lose moisture through both their stems and petals, so they can wilt quickly in a warm room. Begin with a spotless vase and plenty of fresh water. Remove lower leaves, trim the thick stem at an angle, and make a short vertical split at its base to expose more drinking surface.
Check the vase at least once a day. If a bloom begins to soften, recut its stem and immerse the flower head in cool water for twenty to thirty minutes. Hydrangea petals can absorb moisture directly, and the bloom will often regain its shape as it rehydrates.
Display hydrangeas away from windows with strong afternoon sun. Their large heads also need space, so avoid packing them tightly against other flowers or a wall. Remove any fading head early to keep the water cleaner for the remaining stems.
Quick tips
Offer more water
Use a generous fill and check it daily during the first few days.
Refresh the stem
A diagonal cut and small vertical split help a woody stem drink.
Soak a wilted head
Cool water around the petals can revive a bloom that has softened.
