For questions about a plant that's failing to thrive, and where the cause is unknown.

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3
votes
0answers
28 views

What are the big wart-like bumps on my hibiscus leaves?

The leaves on my Hibiscus bushes have developed big wart-like bumps. They are spreading rapidly and it seems like they are killing my bush. What are they, and how can I cure them?
3
votes
0answers
27 views

Are these pea plants sun damaged?

I transplanted a few sugar snap peas into my raised bed a week or two ago and noticed that some of the leaves were turning white. The whiteness starts at the base of the leaf and radiates out from ...
5
votes
3answers
29 views

How do I revive a shocked goji berry bush?

How can I revive a Goji berry bush after it has gone into shock. I moved the bush to a separate larger space and it was OK for the first and second day, but has continued to wilt from then. Will I ...
6
votes
3answers
87 views

How can I revitalize cucumber plants after spraying them for mildew?

I have three cucumber plants planted on my balcony. The plants started great and went on growing. What looked like a promising start is looking like a disappointing end. It started with white ...
4
votes
0answers
30 views

How to start over-pachysandra decimated

I had a beautiful, thick, well established patch of pachysandra in my yard that is now decimated. To put it mildly, I don't have a green thumb and since I have a full time job and three young kids I ...
4
votes
1answer
37 views

What is this white speck on the leaf of my plant?

I found these tiny white web-like spots on many leaves of my plant. What are these specks? And what should I do with them? Ignore them? Wash/Wipe them away with water? Pluck the infected leaves? ...
4
votes
0answers
48 views

Dying French Lilac

I live in South East Tennessee. About 7 years ago I planted two Lilac bushes in my front yard. One is the regular purple kind, the other is called a French Lilac. The purple one started to get too ...
7
votes
4answers
145 views

Why do the leaves of my (very young) Eureka lemon tree look folded?

(Edited to add more detail and an update at the end) I have a small Eureka lemon tree that is few months old, and is currently showing signs of weakness that are worrying me. In more detail, some ...
7
votes
1answer
589 views

Should I be concerned about these purple stems and dead leaves?

I have a small mint plant that a friend grew from a cutting and gave me. He had it in a tiny pot, so I transferred it to another pot in pretty short order, and it's certainly been growing. I have not ...
5
votes
1answer
125 views

White spots at the base of a cactus

Somebody gave me this cactus and I noticed that the base is getting white. Is it normal? Other information: I live in Canada The cactus is indoor and facing the sun all day I used soil for cactus ...
6
votes
1answer
28 views

Are the white sections on my bean plant's leaves caused by white flies?

I have been planting a few beans in my backyard, in a pot. The plants sprout well and start growing well. After a week or less the leaves have these white lines and patches on them. I had pepper ...
6
votes
1answer
44 views

Why is the stem of one of my sunflower seedlings shriveling?

I recently planted some sunflower seedlings and they have been doing fairly well. The only problem I had noticed was that the tips of the leaves were slightly burnt, but even then, the burns weren't ...
5
votes
1answer
31 views

Will grape ivy harm oak and sumac if allowed to spread?

I see what I believe to be grape ivy growing on oaks, sumacs and other chaparral in the San Diego back country. Will this harm those plants if allowed to spread?
6
votes
2answers
50 views

Why are the leaves of my basil yellowing and falling off?

I got this basil from a friend when it was about half this size. It was a bit spindly and looked like it wasn't pruned enough. Since then I cut it regularly and it got some branches and the base even ...
4
votes
1answer
95 views

Why are my Dracaena marginata leaves getting brown spots and falling off?

My dracaena has been losing a lot of leaves recently, and it seems to me that they all have brown spots. They turn yellow and then they fall. My mom says nothing has changed in the way she watered it ...
7
votes
1answer
59 views

Why is my Sago Palm (Cycas Revoluta) leaves yellowing?

I got this plant from IKEA, and transplanted it with a cactus soil mix. However, the leaves are turning yellow from the bottom ring of leaves and spreading to the top ring. What may be the reason and ...
5
votes
1answer
56 views

Why are my Japanese Yews (podocarpus) suddenly dying?

I installed five Japanese Yews (Podocarpus) in the fall, November, of last year here in Austin TX. I checked up on them about a month ago and everything was fine. Now the leaves are turning ...
5
votes
2answers
123 views

Does my very young Eureka lemon tree have leaf disease?

I have had a small sprout of lemon tree (Eureka lemon, if I trust the label) for a few months, and for the past two it has been looking weak and sick. In particular, it's not making new leaves ...
4
votes
1answer
70 views

Is my lucky bamboo dying and what can I do about it?

Recently I've noticed my lucky bamboo houseplant had been withering from the top down. I've had it for over a year now and I'm wondering why it is dying. The plant is in a glass bottle of water ...
3
votes
1answer
75 views

Why do my potted plants have stems but no branches?

I have more than 10 plants on my balcony, and almost every one of them has long stems with no branches. We water them every morning, and the sunlight is good. They are like this throughout the year. ...
10
votes
1answer
127 views

What is causing this damage on my apple tree?

UPDATE On inspecting all the other branches, I found one of the branches in the following state. It shows the bark beginning to fall off the tip, explaining how the other branches have developed.I cut ...
7
votes
1answer
50 views

Does my mint plant have web blight?

In the pot I see small lumps that look like rocks, but they crush like dirt. Additionally, there's fuzz on the main stem that looks like a spider's web. Finally (what a brown thumb I've got) there's ...
7
votes
1answer
36 views

Variegated Arboricola shrubs leaves wilting

What can I do to help this Variegated Arboricola to grow healthy and stop wilting? I am in Southern Florida. I was spraying my lawn with Ortho® Weed B Gon® Weed Killer For Lawns Ready-To-Spray2 ...
7
votes
1answer
70 views

What is this white crust forming on my cactus during the growing months?

I live in the UK and have a Trichocereus bridgesii/Echinopsis lageniformis "monstrose" cactus that I bought from a garden centre 3 years ago. Every year in early summer several new stems grow from ...
11
votes
1answer
95 views

Tillandsia (air plants) Turning Black and Dying After Watering

I live in a northeast Connecticut boarding school, and have ten tillandsias on the windowsill of my dormitory room. I cannot collect rain water for them because I have no tools to do so, so the water ...
7
votes
0answers
43 views

Why does my banana chili start to wilt and seem to die off when it reaches 500 mm high?

You can see the problem in the picture! I've grown chilies here for 25 years without problems.
9
votes
1answer
89 views

What is this tree-like houseplant with long thin leaves? Is it sick?

Can somebody identify this plant? I received it for my Dad's passing and it isn't doing so well. I just moved it and it may be in shock.
9
votes
1answer
128 views

Why are my aloe leaves turning white and brown?

I have had this plant of aloe for years, and it has always given me great satisfaction. Easy to take care of, I had separated it into different pots but now decided to keep it all together into a ...
9
votes
2answers
109 views

Why are the leaves on my houseplant turning yellow and getting black spots?

I have this shade plant in my home. The leaves are becoming dry, turning yellow and developing black dots on them. I don't know whats wrong with it. If it's a lack of food, I can give it compost, ...
7
votes
2answers
72 views

How can I determine if cactus seedlings are dead?

I planted some notocactus seeds sometime in September and many have germinated since then. A few weeks ago, there was an incident where some of my succulents may have experienced frost and I can't be ...
9
votes
1answer
79 views

What is this bonsai tree with serrated elliptic leaves and why has it lost all its leaves?

My son bought me a bonsai tree for Father's day in June last year. It grew new leaves and shoots for a while and has been watered regularly. It has now dropped all its leaves and there does not seem ...
5
votes
1answer
51 views

Why are my strawberry leaves turning yellow?

About a week ago I planted a strawberry plant. New leaves are growing fine but the old big leaves are turning yellow. I don't know what the problem is.
6
votes
1answer
53 views

What would make my apple seedling wilt and looks like it's dying?

I have a little apple sapling that I planted using a seed from an apple at the super market. I live in Auckland, New Zealand and my apple sapling is about 10 cm (4 in) tall. Recently it became very ...
5
votes
1answer
50 views

Why has my orange tree turned yellow and stopped bearing fruit?

I live in Spain, and this year my orange tree has turned yellow all over, with no flowers or fruit. What could it be? I have taken a picture.
8
votes
1answer
74 views

Is this powdery mildew on my tomato?

Just noticed this on my store bought plant (not grown from seed). It's now fruiting, and I don't see any white spots on the leaves. Update: 25 Feb 2016 with close up of the stems and an more ...
4
votes
2answers
68 views

What is this “palm” looking houseplant and how do I take care of it?

I'm not sure what this plant is but I've had it for for 3-4 years. I've watered it about twice monthly and it's right by a giant window. For the last month, the branches have been getting weaker and ...
5
votes
3answers
56 views

Why is my Adenium obesum wilting?

This desert rose, Adenium obesum, was put on a window sill on top of a radiator, and did well for approximately 10 days. Then I left for the Holydays. I left the plant with extra water and no ...
7
votes
3answers
107 views

How can I help this plant?

This tiny plant needs help ! The previous tenant left it in the apartment. With a little search, I guess it's a crassula ovata. I live in France, what are the best recommendations do you have ? Is it ...
6
votes
1answer
64 views

What's causing discoloration and spots on my Tomato and Bell Pepper plants?

I had an issue with tomato hornworms. I sprayed my plants with a BT Dipel solution. A few days after I sprayed them, I noticed a change in the plants. I did some research and found that it could be ...
4
votes
1answer
66 views

What is causing this sedum's leaves to curl and etiolate?

A few months ago I took a sedum from a soil plot where they were being used as a ground cover. I think it was Sedum ewersii, Sedum sieboldii, Sedum cauticola or a species very closely related. I ...
5
votes
1answer
54 views

Why is my basil doing poorly after I split it a month ago?

About a month ago I split my basil plant in half since I wanted to give some basil to a friend. I had never split a plant before. During the summer and fall months I kept my plants outside on my ...
7
votes
1answer
199 views

What is causing curled and deformed capsicum and chilli leaves?

I live in western South Australia (Mediterranean climate with sandy, pH neutral soils). I turned over the vegetable garden (history unknown) in August/September, adding Dynamic Lifter for vegetables, ...
4
votes
2answers
75 views

What are these orange spots on my fiddle fig plant?

I've just noticed some orange-like spots on one of the new leaves on my fiddle fig plant. I water it once a week or whenever the dirt is dry. It sits in my window from morning to evening time. Is this ...
4
votes
2answers
105 views

Why are my tomato plant seedlings dying?

Some of my tomato plants are dying for no reason. I just transplanted a few seedlings in the pot and after 3-4 days, a few are dead and some are doing well. Is this some kind of transplant shock? This ...
5
votes
2answers
83 views

Why are the edges of my cucumber leaves drying out?

I have been growing cucumbers under 40% shade net. Last week the temperature was at 42° Celsius (105° F). At the end of last week, some of the plants started having burning and drying of the leaves' ...
3
votes
3answers
127 views

What is the white stuff on this cactus-type plant?

I have had this plant for more than 10 years now but I do not know its name. What is the name of this plant? The issue is that this plant has a lot of white areas, as shown in the pictures. These ...
5
votes
1answer
75 views

Is this aloe vera root rot?

Can someone verify if this is root rot on my aloe vera? It was starting to wilt so I had to re-pot. There were more root "hairs" but they were slimy and black and most of them stayed with the old ...
5
votes
1answer
71 views

Why are the leaves on my capsicum plant curling and turning brown?

Does anyone have any idea what's happening to my capsicum plant and what I should do about it? There are no visible bugs on the leaves.
9
votes
2answers
100 views

What is causing irregular brown sunken spots on my tomatoes?

I have been growing tomatoes in the same spot in my garden for years. This year most of my tomatoes seem to be affected by a disease which only affects the tomatoes. I prune, water & fertilize the ...
7
votes
1answer
81 views

Who/what is eating my mint?

Who/what is eating my mint? What should I do about it? Can I do something organic? I had destroyed my mint a year ago by spraying a pesticide, so I don't want to go that route. I live in Jaipur, ...