Hydrangea Plants
Q.

Planted Hydrangea and it frosted

Zone G66 5DZ | toppingjohn69 added on April 29, 2016 | Answered

Planted Hydrangea and it has frosted and been cold. Put into ground 15 Hydrangeas last week, got frost over night and been cold since. They came in 10 gallon pots. Can I save them? Bought for a wedding happening August 20th for nice effect. John.

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on April 30, 2016

The tender tips of the plants and buds may be killed off. The leaves may turn purple and then black as the die off.
You can scratch your fingernail across the stems to see if they appear green underneath, if they are green, they are still alive.
Don't do any pruning right away. Allow the weather to warm and then you can access the dead parts of the plants and prune these away.
Water the plants well and you can give them a light application of a slow release fertilizer.
If you see no signs of new growth over the next few weeks, the roots could have frozen.

https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/growing-hydrangeas-hydrangea-care-guide.htm
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-winter-care-how-to-protect-hydrangeas-from-winter-cold-and-wind.htm
https://www.gardeningknowhow.com/plant-problems/environmental/tips-for-saving-cold-damaged-plants.htm

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