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

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8
votes
2answers
37 views

What would cause branches in the middle of a pear tree to die?

I had a really nice pear tree. Last year I saw a dead branch in the middle of the tree so I cut it. But this year there are a lot of dead branches in the middle of the tree. I'm afraid I'm doing to ...
4
votes
1answer
30 views

Translucent spots on leaves

Recently several of my plants have developed these translucent spots on their leaves. What is causing this? What should I do? [
4
votes
1answer
46 views

Diagnosing if a tree is dead

I found a very large branch in my yard. Looking up, I was surprised to see a a bare tree amongst the leafy ones, from which this branch had fallen. Not a tree expert but I'm guessing this one is ...
5
votes
1answer
29 views

zucchini plant issues- fruit not setting, blossom buds black tipped & small

i have 4 large zucchini plants. 3 of them are growing beautifully so far this year, however im having issues with 1. all the leaves are dark green, large, and look healthy- except for new growth ...
1
vote
1answer
21 views

Spots on marigold leaves

I was sprouting some French marigolds and noticed some spots on the leaves. They didn't look good, especially since one of the plants didn't get them. I looked them out on the internet and figured it ...
1
vote
0answers
29 views

What are the pigments in my orchid?

This orchid has been with me for one week. I don't know if she's ok, she has little points on her flowers and her stalk isn't brown at all. I watered the plant the same day I bought her and yesterday. ...
2
votes
1answer
33 views

Is this a fungi on my plant?

I have bought a Kalanchoe and it was healthy when I bought it. I have four more plants with the same problem (all purchased from a place like ikea in Ecuador). I wonder if it is a fungus, and how to ...
6
votes
0answers
30 views

Why are the leaves on my mango tree turning brown and drying out?

I grew a mango tree last summer from seed in a pot. In the beginning it was extremely healthy looking and fast-growing. When the summer was over, as it gets very cold here in Canada, I took it indoors ...
2
votes
1answer
40 views

What is killing my tomato plants?

Planted my tomatoes two weeks ago, and returned from a week long trip to find them full of holes and generally looking sickly. The last week has been very rainy and borderline cool, which I know is ...
3
votes
1answer
49 views

Revive a dying lavender (for a dummy)

In my recent backyard (since 1.5 year), I have been clumsy (and lazy). This not so young lavender (Lavandula) was blooming last summer, and I neglected cutting the flowers at the right time. I just ...
2
votes
1answer
539 views

Mint is becoming more withered

Recently my mint has been looking less and less healthy. Here's what it looks like right now: I made two changes since when it looked relatively healthy and when it started looking like this, which ...
3
votes
0answers
26 views

New fungus or mold on my basil plant soil

My husband and I are new to gardening. We bought a basil plant a month or so again, and we've been cutting it and starting new plants. Today woke up to this weird mold or fungus. I can't seem to find ...
4
votes
0answers
52 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?
5
votes
1answer
53 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
37 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
4answers
121 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
44 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
41 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
71 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
157 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
599 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
136 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
30 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
64 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 ...
7
votes
3answers
86 views

Dying Lawn - brownish/white with moss and clumps

I am trying to figure out what is killing my lawn. The pictures below were taken a few days ago.There is only the one area of this occurring and the yard is about 1/2 acre. The dead area has been ...
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
60 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
121 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
89 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
71 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
131 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
78 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
79 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
131 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
59 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
41 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
82 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
111 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
47 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
99 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.
10
votes
1answer
215 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
126 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
76 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
93 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
57 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
63 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
54 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
78 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
72 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
59 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 ...