Top Questions About Mandevilla Plants

Click on links below to jump to that question.

Questions About Mandevilla Plants

Asked by
Anonymous on
November 15, 2010

Q. Mandevilla Blossoms Fall Off

I have a yellow mandevilla. It looks very healthy, but the blossoms start to open, and then they fall off. I don’t see any pests.

Answered by
Heather on
November 17, 2010
Certified Expert
A.

It could be that it is just a little underwatered, just enough so that it can't support its flowers and so it drops them.

 

It could also be that you have thrips. These are tiny pests that attack the base of buds and cause them to fall off. They can be very hard to see.

 

I would recommend increasing water just a bit and also treat the plant for thrips. This article will help:
https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-thrips.htm

00
Was this answer useful?
Join Us - Sign up to get all the latest gardening tips!
Asked by
Anonymous on
February 26, 2011

Q. Mandevilla Plant

I received a mandevilla plant while hospitalized last June. It blossomed for a long time and was very pretty. I’ve kept it through the winter. I also pruned it back some. How will I get it to bloom like it once did?

Answered by
Heather on
February 27, 2011
Certified Expert
A.

Once the weather gets warm, take it back outside. Give it a phosphorus rich fertilizer and it should bloom wonderfully.

00
Was this answer useful?
Asked by
Anonymous on
May 12, 2011

Q. How To Take Care Of Plants

Do pretty crimson mandevilla have to be planted outside, and if so, how do you plant them; or is it an indoor plant?

Answered by
Nikki on
May 13, 2011
Certified Expert
00
Was this answer useful?
Asked by
suzzy on
May 26, 2011

Q. What Causes a Mandevilla to Lose Its Buds?

I have kept it watered and fertilized with Miracle Gro.

Answered by
Heather on
June 3, 2011
Certified Expert
A.

It may have thrips. This article will help with that:
https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-thrips.htm

It also would not hurt to increase watering. While you are watering, it may simply not be enough for the plant.

00
Was this answer useful?
Asked by
suzzy on
May 29, 2011

Q. Help With My Mandevilla

I have been watering the plant daily, as it has been very dry here. The buds have begun to fall off. The leaves are green and the plant looks healthy. Please help me. Thanks

Answered by
suzzy on
May 29, 2011
A.

What causes the buds to fall off a mandivilla?

00
Was this answer useful?
Asked by
Anonymous on
May 30, 2011

Q. Yellow Leaves on Mandevilla Plant

My ruby red mandevilla vine in L. A. keeps getting yellow leaves all over. It has not flowered yet. It gets about 6-7 hrs of sun now. Is that too much? Why are the leaves turning yellow? Is it too much water?

Answered by
Nikki on
May 30, 2011
Certified Expert
A.

Mandevilla favor humid conditions. If your plant is exposed to the sun, the soil may be too hot. Try misting/spraying the leaves with water in the mornings and keep the soil moist (NOT wet). You may also want to consider moving your plant (if possible) to an area that doesn't receive direct sunlight for extended periods of time.

Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/vines/mandevilla/mandevilla-plant.htm

00
Was this answer useful?
Asked by
maxipoo on
July 1, 2011

Q. What Causes Yellow Leaves on Mandevilla?

The leaves are very yellow, and most have small black spots on them. The plant was transplanted before the blooming season. I fertilized lightly, sprayed with a soap and water solution, but the problem is worse than ever. Plant is two years old.

Answered by
Heather on
July 6, 2011
Certified Expert
A.

It sounds like a fungus, likely black spot. Treat the plant with a fungicide and this should clear up the problem.

00
Was this answer useful?
1 2 3 33
Learn

Learn From
Your Peers on
Our Blog

Visit Our Blog
The website that started it all!
Main Website

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More