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

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4
votes
1answer
122 views

What is causing the brown-black spots on my apricots?

I've recently bought a house in the Auvergne region of France (South central) which is about 30 years old and that has the good fortune to have several mature fruit trees in the garden (cherry, apple, ...
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.
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 ...
4
votes
1answer
342 views

What is wrong with this desert rose and how can I cure it?

My desert rose appears to have a disease. Every year, the leaves develop these spots and look terrible. It still blooms every year. Can anyone identify the disease and/or suggest a cure? enter ...
5
votes
1answer
74 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 ...
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 ...
7
votes
3answers
2k views

Why does my Goji Berry produce many flowers but never bear fruit?

I have a 4 foot tall Goji Berry plant that has been prolifically producing flowers all year long. None of the flowers ever become fruit. I've witnessed hummingbirds poke into each flower because they ...
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 ...
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.
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 ...
21
votes
2answers
651 views

How do I help my kitchen window herb garden thrive?

For the last couple of years, I've been nursing along a sort of kitchen window herb garden consisting of cilantro, parsley, basil and chives. What I've done is bought live herb plants at our local ...
7
votes
3answers
106 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 ...
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 ...
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
1answer
1k views

Why are the lower leaves of my tropical Guava yellowing and dropping?

I had a Century Guava (世紀芭樂) shipped over from Taiwan to zone 9 California. It is nearly 6 feet tall. I planted it in the biggest container that IKEA sold, 20 inches wide, 2 feet deep. I drilled many ...
5
votes
1answer
785 views

What are the growing conditions for Camelia azalea, especially its water needs?

I have bought this rare breed of Camellia, the Camellia azalea. It's originally from China I think. I have mixed in some coco husk to allow for good water flow and prevent clogging the soil with too ...
3
votes
1answer
128 views

What is causing the collapsing branches on my Aloe barberae (Aloe bainesii)?

I have a young Aloe barberae (a type of giant tree aloe), about 3 meters tall, which has been in my front yard for three years. I'm in Los Angeles, which has a climate similar to the weather in the ...
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 ...
4
votes
2answers
104 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 ...
6
votes
1answer
6k views

What is causing curled leaves on different varieties of citrus?

Is anyone able to identify this disease / pest? We have this on several citrus of different types including an orange, grapefruit, lime, and a mandarin orange. My first thought was that it could ...
2
votes
1answer
2k views

How can I make my Moringa Oleifera happy again?

I'm having some problems with my Moringa Oleifera. It's about 6 months old and is placed in a sunny window (oriented south), in southern Sweden. It's been growing well and looked healthy until ...
9
votes
3answers
20k views

Why has our lucky bamboo turned yellow?

Our lucky bamboo has turned yellow in a very short time, after we've had it for almost 2 years. We've trimmed all yellow leaves, and changed the pebble to clean the green algae - what else can be ...
4
votes
1answer
95 views

What is this insect, which is drilling holes into my rose bush?

I recently bought a rose bush for the first time and planted it in a large pot according to the instructions on the label. It has been about a month since then, the first yellow rose has started to ...
5
votes
2answers
82 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' ...
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 ...
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
2answers
13k views

Why is my pine tree turning brown?

I have 4 pine trees (not sure the type but they look like Christmas trees) in my back yard. They were planted at the end of May by the people that we bought the house from. One of them has turned ...
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
4answers
922 views

How do I keep “cat grass” alive?

Sometimes I buy a little carton of grass at the pet store for my (indoor) cat to nibble on. She likes it but it always seems to die off within a week or two. I'd really love to have a sustainable ...
10
votes
2answers
4k views

How to stop my courgettes (zucchini) rotting?

I've tried growing courgettes (zucchini) for the first time this year and the plants have been delightfully easy to grow. (For reference, I'm in NE England, UK, btw.) However, many of the fruits ...
7
votes
1answer
80 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, ...
3
votes
1answer
87 views

What causes sandy, flecked, or speckled leaves like this?

There are several different species of plants in my yard that have developed some kind of condition where the leaves get pale, tiny specks all over them (such that they look kind of sandy). Many of ...
3
votes
3answers
87 views

What should I do to prevent my kiwi leaves losing their color?

My kiwi leaves are losing their green color too fast. Even new, small leaves can lose it and fall off. The kiwi is 1 year old, grown in a pot in my apartment. It is not close to a window or a ...
4
votes
1answer
91 views

Why are my radishes malformed?

The majority of the radishes I harvested were of this form - bent so that part grew parallel to the soil above the ground, with the stalk taking another 90 degree turn to return to vertical. What ...
4
votes
2answers
68 views

How much seasonal, internal die-off of Arborvitae is natural and expected?

How much "natural" (i.e., without damaging factors) die-back from the inside of an (otherwise healthy) arborvitae hedge should be expected each year? Stated another way, would an arborvitae in ideal ...
6
votes
1answer
207 views

Why does my holiday cactus have a three cornered stem segment?

I noticed some new growth on my Schlumbergera, and when I looked at it, I found a three cornered stem segment. The segments are normally flat. with only two wings out from the stem. This segment has ...
2
votes
1answer
208 views

Why are my chives turning brown on the tips of their leaves?

I grow chives in a pot. In the last few weeks, it grew dramatically. However, in the last days I noticed that the tips of the leaves turned brown. What could it be? Some type of disease? Lack of ...
3
votes
0answers
62 views

Strange brown/dead spots on leaves?

What I have here is a plant which is being affected by something which is making certain spots of its leaves appear to be unhealthy. Does anyone have any idea what's going on? Is this something that ...
3
votes
1answer
82 views

Can anyone identify this infection with my Mango Tree?

The blisters seem to be spreading only to the older (darker, interior) leaves, and the sap is dripping out of the blisters (literally raining down) What is this?
4
votes
2answers
125 views

Is this plant (Radermachera ) sick? Leaves turning yellow and spotty

Previously I did not know the species of the plant in the picture. (The one with the owl ornament). I finally found the sticker. It is Radermachera. In last couple of week I find that many leaves ...
2
votes
0answers
56 views

Why is my lucky bamboo turning yellow? [duplicate]

I have a wrapping of bamboo stalks, maybe 20 or so stalks tied together. 3 or 4 stalks have died one at a time the past 2 months - they start to get yellow-greenish, then more yellow over time. The ...
13
votes
4answers
6k views

Japanese box hedge failing to thrive. What to do?

I have a Japanese box hedge which is not exactly dying, but is definitely failing to thrive. When I moved in (5 years ago) it was looking much better. So it's not about the location, but that the ...
10
votes
2answers
8k views

My basil had a shock after transplanting. What did I do wrong?

First a little backstory: I bought the basil at a supermarket, where it came in a small plastic vase. I kept it in this vase for three weeks. During these three weeks, I did the following: kept it ...
11
votes
3answers
2k views

Why is my pepper plant dying?

I planted a capsicum/pepper plant about 5 months back and it's been growing well and producing a few fruits. I live in Melbourne, Australia and it's now Winter, and the plant now has lots of fruit, ...
7
votes
2answers
7k views

How do I keep oak trees from sprouting?

I have a lot of nice sized oak trees. I have pin, black, and chestnut. Every once in a while one of them puts out sprouts all over the trunk and starts looking like a green pillar. How do I keep that ...
5
votes
2answers
100 views

Why are some clippings of this plant apparently pure green and others mottled with yellow?

I saw this question on “Why is the foliage turning yellow on this climbing indoor vine?” and have a tangential question. Plants in question are pictured. All indoor plants. So understand the concept ...
3
votes
1answer
33 views

Why are chunks of my Sedum Spectabile snapping off at the stem bases?

Whole chunks of my sedum plant (which looks otherwise healthy) come away in my hand because the stem has snapped/cut clean through. What's causing this, and how can I prevent it?
14
votes
4answers
11k views

How should a lemon tree with yellowing leaves, peeling bark, and small fruit be saved?

Our lovely lemon tree is in trouble... We live in Northern California. Starting mid-last summer our tree began yellowing. We've called an arborist out to the house but the advice has been pretty ...
4
votes
1answer
79 views

What is this plant with large leaves that have a white substance on them?

I have a plant of unknown species on my closed balcony. Since the last few months it seems to vegetate and starts to lose its leaves without producing new ones. For some time there was some white ...