Top Questions About Gardenia Plants

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Questions About Gardenia Plants

Asked by
Anonymous on
September 9, 2019

Q. my gardenia leaves’ tips are turning brown and flower buds are falling.

The end of the flower bud is so soft when it falls. Not all leaves are brown, most of them are normal looking, and some new growing leaves turn brown when they are still too small.

Answered by
GKH_Susan on
September 10, 2019
Certified Expert
A.

Poor soil drainage can cause brown leaf spots. Also low humidity, high pH level (gardenias prefer acidic soil) and/or insufficient light.

Here is information about bud drop:
https://www.gardeningknowhow.com/ornamental/flowers/gardenia/gardenia-flowers-gardenia-buds-falling-off-plant.htm

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Asked by
Anonymous on
September 9, 2019

Q. How to grow Gardenia plants in the tropics?

I seek your expert advice in growing Gardenia plants, from seeds,
indoors.

Answered by
GKH_Susan on
September 10, 2019
Certified Expert
A.

This article gives all the propagation methods:

https://www.ctahr.hawaii.edu/hawnprop/plants/gar-brig.htm

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Asked by
Anonymous on
September 17, 2019

Q. weak gardenia with brown leaves

My gardenia is dying
I already lost two plants from the four.
The roots, the stems, the leaves are all becoming weak

Answered by
GKH_Susan on
September 17, 2019
Certified Expert
A.

Your plants may have root rot. You may be able to save them by replanting in fresh soil and cutting off any mushy material. Reduce the amount of watering in the future. Here is more:

https://www.gardeningknowhow.com/ornamental/flowers/gardenia/common-gardenia-diseases.htm

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Asked by
Bob Yorczyk on
September 17, 2019
30646

Q. I missed the best time to prune my gardenias. Should I prune them in late September or wait until next June?

The picture and this comment are here because the site keeps asking for more information so I made sure there was something in each box.

Answered by
BushDoctor on
September 17, 2019
Certified Expert
A.

As long as it is not setting next year's flower buds right now, and you have caught it before, then it is ok to prune now.

If, you notice new bud growth, then it will be too late and pruning will inhibit flowering next year.

this article will offer more information: https://www.gardeningknowhow.com/ornamental/flowers/gardenia/when-to-prune-a-gardenia.htm

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Asked by
Anonymous on
September 17, 2019

Q. Indoor /Outdoor Gardenia plant….and Hydrangea.

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 ?

Answered by
GKH_Susan on
September 19, 2019
Certified Expert
A.

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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Asked by
Anonymous on
September 22, 2019

Q. Gardenia infestation. Want to know what it is and how to treat it.

The infestation appears to be white. Og is deposited on the underside of leaves and at the base of areas that branch off.

Answered by
GKH_Susan on
September 24, 2019
Certified Expert
A.

It looks like mealybugs, a common pest problem with gardenias.
This article tells more:
https://www.gardeningknowhow.com/ornamental/flowers/gardenia/gardenia-pests.htm

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Asked by
Anonymous on
September 23, 2019

Q. Is a gardenia plant poison to cats if indoors?

Since we moved from Florida, where it could be out doors all year long, we now live in Pennsylvania so it must come in doors for the winter and we have 2 cats. Also, is the umbrella plant poisonous to cats? Thank you for your help. Eleanor

Answered by
GKH_Susan on
September 25, 2019
Certified Expert
A.

They are both mildly toxic if ingested. By umbrella tree, did you mean scheffelera? Here is more information:

https://www.aspca.org/pet-care/animal-poison-control/cats-plant-list
https://www.gardeningknowhow.com/plant-problems/environmental/plants-toxic-to-cats.htm

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