Ask a Question forum: What is wrong with these

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Name: Linda
Sunmerfield, Florida
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MsPalm
Jun 8, 2015 3:02 PM CST
My neighbor has planted this plant 2xs each time the leaves swivel. She has changed the soil used miracle grow she does not water or under water all the other plants in this flower bed are thriving just the 2 end one. If anyone has any ideas why would be thankful. We live in central Florida
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Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Jun 8, 2015 3:08 PM CST
Having tried the same plant several times in that spot, I would be looking at the difference in sun exposure, does that particular spot drain the same?
The other plant of the same kind is beautiful, so something about the conditions for the second plant is different.
Name: Danita
GA (Zone 7b)
Charter ATP Member Forum moderator Hummingbirder Salvias Butterflies Birds
Plant Identifier Vegetable Grower Container Gardener Seed Starter Cat Lover Region: Georgia
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Danita
Jun 8, 2015 3:49 PM CST
Hi Linda,

They are suffering from Phytophthora fungus. It is a very common problem with Catharanthus roseus particularly in hot, humid, rainy climates. She needs to find a resistant variety, like the 'Cora' series, or try another type of plant entirely. The spores are in her yard and will re-infect the new Catharanthus roseus plants. I've given up ever buying the generic 6-packs of these because of this very reason. In fact, I often see shelves of the cheap Catharanthus roseus 6-packs at the big box stores that are already infected and wilting.

Sorry! Sad
Name: Lynn
Dallas, OR (Zone 8b)
Charter ATP Member Garden Sages I helped plan and beta test the plant database. I helped beta test the Garden Planting Calendar I was one of the first 300 contributors to the plant database! Plant Database Moderator
Forum moderator I helped beta test the first seed swap Celebrating Gardening: 2015 Plant and/or Seed Trader Garden Ideas: Master Level Sempervivums
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valleylynn
Jun 8, 2015 4:05 PM CST
Oh what a bummer.
Name: Linda
Sunmerfield, Florida
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MsPalm
Jun 8, 2015 6:06 PM CST
Thank everyone I told her to try another plant I will let her know. Thank You!
Name: Danita
GA (Zone 7b)
Charter ATP Member Forum moderator Hummingbirder Salvias Butterflies Birds
Plant Identifier Vegetable Grower Container Gardener Seed Starter Cat Lover Region: Georgia
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Danita
Jun 8, 2015 6:50 PM CST
If she wants to try Catharanthus roseus again in the future, you can find resistant varieties but they usually cost more. I've had good luck with a couple of the 'Cora' varieties. 'Cora Apricot' is my personal favorite, but there are a lot of nice color selections. Green Grin!

http://www.plantanswers.com/vinca_perriwinkle.htm
http://thedailysouth.southernliving.com/2011/01/05/a-year-of...

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