Questions tagged [diagnosis]

Gathering of information and facts to determine the root cause of a plant that is failing to thrive.

For questions about a plant that's failing to thrive, and where the cause is unknown (it could be disease, pest, or environmental). Ideally, the fullest possible description of the symptoms and growing conditions should be included, as well as close-up pictures of the affected part and other parts of the plant.

Model Questions

These questions are good examples of how to ask an effective diagnosis question. Note the photos and descriptions as well as the descriptive title.

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Draceana marginata extreme leaf-shedding

I’ve had this Dracaena marginata for over 8 years now (so I’ve got quite attached to it). It has always been fine no matter how I’ve treated it. I’ve forgotten to water it and overwatered it over the years. Then in November, it started shedding…
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What happened to my basil. I remember only spraying it with dish soap and oil

I've only ever sprayed dish soap with oil. I usually only water my basil daily but its very rainy in my area. Please help in identifying why my basil has blotches on it's leaves
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What's this brown spot on my jade leaf?

What's this brown spot on the leaf of my jade plant? I first saw it on the leaf about a week ago. A few days before I saw it, I had to remove one of its bottom leaves because it looked like it was rotting. I'm an amateur plant parent, but I'm…
Abby K
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What is causing these spots on my shamrock plant?

We have had this shamrock at home (inside) for the last 4 months and about 1 month ago these spots started appearing. Any idea what it is and if we can fix it?
G_P
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My plant is drying and dying. What should I do?

I bought this bush/shrub/plant about a month ago but I can't remember the species. It was very green, the leaves were curled and very little and it had very little white flowers. When I bought it everything seemed ok, but now, with the hot weather,…
maria
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Philodandron dying - black goo

My philodandron is slowly dying (I created a previous post here, but I lost the access to the account for some reason :/) In the other post I showed how it went from a nice big plant to losing all its leaves: a) When we got it b) A few weeks…
Paco
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Parsley in a jar - looks miserable and sick

Yesterday (Apr 9) I bought a fresh tuft of parsley at the supermarket, packed in a paper cone with its roots still wet. Never seen before, they claim it would stay fresh if properly treated. So, having not a pot with drain holes, my last resort is a…
marco
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What causes grape leaves to brown and how do I correct it?

I have planted two types of grapes along with a passion fruit vine that I want to cover an arbour for shade in the summer and fruit of course. I planted them in December and they grew fairly well until we got a couple hot and humid weeks followed by…
John Petrak
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Pepper plants dropping fruit when they get to be the size of a pea

We have planted peppers in "earth boxes". They look great, blossom freely and set fruit. Then the fruit falls off. ??
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Skinny, scrawny Baobab with two main stems?

I was given a stick of baobab from Senegal which I dutifully planted in a mix of soil and sand. At some point it split into two, so that there are now two trunks with a tuft of leaves at the end of each. But they both seem to be growing further and…
kasiao
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Huge fungi in the cactus pot

A year ago or so, my cactus started developing yellow spots all over and was diagnosed with a fungal infection. As instructed, I got an antifungal spray (copper-based) and was spraying it once a week or so. As far as the yellow spots go, I do not…
Roman
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Moringa tree has yellow leaves

My Moringa tree is in a pot, it's about 3 ft' tall, leaves keep getting yellow and fall off. I read that Epsom salt is good and coffee. Any suggestions? It gets full sun in New Orleans.
Janine
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My Norway Spruce is Dying

I got some trees for Christmas, and most of them are thriving, but my Norway Spruce is not doing too hot. At first, I thought I had over watered her, her leaves were drooping, but weren't brittle, so I moved her from her pot so she could dry. Now,…
jeln
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Aloe vera sickness

(https://i.stack.imgur.com/YzUrl.jpg) My aloevera plant was having black and brown spots on it. So I asked on gardening stack exchange for the same. (Why is my aloe vera plant having plant spots?). One answer suggested to cut the brown portion. So I…
Aviral
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Is this Arrowhead vine healthy?

This is my second arrowhead vine plant. The plant is still in the same pot it came from nursery. I will be soon re-potting it in a ceramic pot. But the plant is very droopy and looks like it is sad. The bottom three leaves have turned yellow. I…
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