Gardenia Plants
Q.

Indoor /Outdoor Gardenia plant….and Hydrangea.

Zone 15425 | Anonymous added on September 17, 2019 | Answered

I am a novice gardener. I have a gardenia plant hat was sent to me thru a florist last year for mothers day. I kept it indoors last summer and thru the winter (about 10in high) This spring I transplanted it into a large outdoor container (24" by 18"deep) and it did great outside this summer. We can get some pretty bad winters here and I want to know if it will survive outside, or do i have to bring that big container indoors for winter? I live in PA. I also have same question and situation with a Hydrangea ?

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GKH_Susan
Certified GKH Gardening Expert
Answered on September 19, 2019

You are right to be concerned about the gardenia survival outdoors during winter. You are in USDA Plant Hardiness Zone 6a. Even the "cold-hardy" varieties of gardenia will be frost sensitive there. So bringing it indoors to a sunny window exposure will be the safest way.
https://www.gardeningknowhow.com/ornamental/flowers/gardenia/gardenia-winter-care-tips.htm

The same goes for the hydrangea, depending on the variety.

https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/winterizing-hydrangea-plants.htm

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