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

learn more… | top users | synonyms

2
votes
1answer
257 views

What are the growing conditions for Camellia azalea? Especially it's water needs

I have bought this rare breed of Camellia, the Camellia azalea. It's originally from China I think and I have mixed in some coco husk to allow for good water flow and prevent clogging the soil with ...
2
votes
1answer
334 views

My Air Plant (Kalanchoe Pinnata) is attacked, how do I save it?

My Air Plant (Kalanchoe Pinnata) is attacked by little green worm like insects which are eating its leaves. Slowly one by one, all of the leaves are dropped by the plant, now it is left with just ...
1
vote
1answer
439 views

Why are my aloe's leaves bent and drying up, and what can I do to help it grow?

My aloe plant is not growing right. I've had it for about a year and the leaves are bending and drying up. Please help me because I don't want it to die, they are very beautiful plants. Can I ...
2
votes
1answer
102 views

Should I cut leafless stem off of plant?

I have a ( Indoor ) plant that has been drooping lately and its stems are long and touch the floor. I'm not sure if the stems are supposed to be stiff, or if that is just the way the plant is supposed ...
2
votes
0answers
107 views

Mexican Avocado tree grown indoors 1½ years old has round spots on leaves

I have a Mexican Avocado tree growing indoors in the winter (we live in the Northeast) outdoors in the summer. It has developed white round spots and the edges to the inside are becoming brown and the ...
1
vote
1answer
107 views

Box-blight or just the effects of winter

I have some small box-trees which start to have some yellow leaves on the top of some branches. Is this the start of box-blight or just the effects of winter. We have some low temperatures (down to -5 ...
1
vote
1answer
131 views

Can we save a dying chili pepper plant by grafting?

I have a dying Jalapeno plant and I want to save the fruits that are already growing, can I use grafting procedure to save it from dying using a well grown Jalapeno plant.
6
votes
1answer
192 views

What is this mark that appears on my small green plums?

After the flowers fell the green plums started growing. As soon as they were 1/4" across, They began developing these little sunken black marks. I have been consistently spraying with fruit tree ...
8
votes
2answers
180 views

What could be the cause of death for my carnivorous plants?

In the past year I've had a venus flytrap and two sundews that each arrived healthy, flourished (and ate!) for a month or two, and then died (after which I tried again and bought a new one!). They all ...
8
votes
2answers
1k views

Why is my pear tree dying around the blossoms?

Shortly after the blossoms fell on my pear, areas around the blossoms started to turn black and die. This is spreading. Although the dead areas tend to be on the end of the branches, there are ...
2
votes
2answers
3k 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 ...
3
votes
3answers
1k views

Ants and white/gray/brown spores all over my gardenia

I planted my gardenia four or five months ago. I noticed, recently, that (a) growth has stunted, and (b) there are ants all over the plant (base, leaves, etc.). There are also white little dots ...
8
votes
4answers
14k views

How do I encourage morning glories to bloom?

I know that many of you will find this unbelievable -- but my morning glories did not bloom this year. For those of you that live where morning glories are a perenial that borders on "weed" this ...
9
votes
2answers
448 views

What is this brown, shell-like thing growing on the stalk of my avocado plant?

Could you please help identifying this brown shell-like thing growing on the stalk of my avocado plant? There are several of these. It looks like a little shell (with the appearance of a ...
3
votes
1answer
242 views

Peppers not growing - growing tips diseased?

Please have a look at these images of my hot pepper plant. Notice the growing tips which seem withered and diseased. What disease is this and what is causing this? What are the solutions to counter ...
3
votes
2answers
3k views

Why do some of my zucchini shrivel and turn yellow at the blossom end?

Every year, I grow a zucchini plant, and every year a few of the zucchini stop growing once they reach a few inches in length, then turn yellow from the blossom end: Left to themselves, they will ...
2
votes
1answer
2k views

How can I protect my citrus tree leaves from being eaten?

A couple of years ago I planted a lemon and a lime tree in my garden. They've been growing quite well but recently I noticed the leaves are patchy and holey - something has been eating them. What's ...
2
votes
0answers
320 views

brown patches on acanthocereus tetragonus (fairy castle cactus)

I've had this pair of fairy castle cacti for several years now, and they've done fairly well. However, I noticed today that they have developed brown patches over most of their stems and a few areas ...
1
vote
1answer
1k views

citrus, curled leaves

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 ...
1
vote
1answer
509 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 ...
1
vote
0answers
84 views

What's making holes in the trunk/stem of my succulent?

Something is making holes in the stem/trunk of my succulent, and is now making holes in an offshoot. When I stick my fingers in the dark hole, it feels gritty. I don't see any insects in the hole or ...
5
votes
2answers
995 views

Tomato plants got black stems and the leaves dry out

I was so proud of my tomato plants (grown from seeds), but now I'm worried that they have died... Instead of having a usual French summer (with 30 C at least and dry weather) it is raining a lot and ...
4
votes
1answer
332 views

What's causing these yellow veins on my Okra leaves?

My Okra leaves have turned as shown below Is this a deficiency or a disease? How can I remedy this? Location: India. Weather In May-June: Hot! > 95F days. Current: Overcast with light rains.
1
vote
1answer
385 views

potted, indoor freesia: dropped flowers, yellowing leaves?

I bought a young (I'm guessing.. 6"-8" tall) Freesia about a week ago. It was doing well at the time of purchase, but it's been all downhill since. Within a few days, the flowers shrivelled then ...
4
votes
2answers
259 views

What is causing a white rash to appear on the leaves of Pedilanthus tithymaloides?

My Lightning Bamboo Green (Pedilanthus tithymaloides, also called Euphorbia tithymaloides) feels well at my home; he already has a sprout. So I can't explain what the white rash on the leaves are. It ...
6
votes
1answer
473 views

What is causing diseased leaves on my French beans?

My French bean plants have diseased leaves as shown below: What can be causing this? The beans themselves are relatively plentiful. Location: India. Weather In May-June: Hot! > 95F days. The ...
4
votes
1answer
317 views

Why are my lemons cracking?

My lemons are cracking as shown in below image: What can be causing this and how can I prevent this in the future? Location: India. Weather In May-June: Hot! > 95F days.
2
votes
2answers
771 views

What causes my zucchini-leaves to become light yellow?

Please have a look at these images of my zucchini plant: What disease is this and what is causing this? What are the solutions to counter this? Location: India. Weather In May-June: Hot! > 95F ...
4
votes
1answer
490 views

White stuff on roots

When I uproot my vegetable plants or even sometimes when I remove weeds, I see this white stuff in the soil near the roots: http://imageshack.us/photo/my-images/717/img1014be.jpg ...
5
votes
1answer
533 views

Are my orange tree's yellowing leaves a sign of underwatering?

I have a mature orange tree in my back yard and I've noticed that the lower leaves at the extremity of have started to to yellow over the last couple of months. Is this a sign of overwatering? ...
5
votes
1answer
238 views

Why are my eggplant seedlings not thriving?

I have started a bunch of seedlings and some are doing really well others are not, under similar conditions. I used 6-8 inch wide pots, ~6 inches tall, potting soil, and left the pots in front of a ...
10
votes
1answer
882 views

Some of my ferns have brown spots on the tips of their leaves. What causes that?

I have a few ferns with long pointed leaves, and their tips have turned brown. The plant is otherwise healthy, and is actively growing. What is causing that? Should I worry about it?
2
votes
1answer
223 views

What is the white powdery substance on my Dracaena's leaves?

I bought a Dracaena about 3 months ago. I water it 1-2 times a week and make sure the soil is moist, but not too damp. About 3 weeks ago, it started developing a white powdery substance on the ...
5
votes
1answer
2k views

What is causing the bark on my crabapple to crack and peel off?

I have a flowering crabapple in my yard whose bark has several large areas where it cracks and curls away from the wood underneath: Hover over any image for description / click for full size I ...
4
votes
1answer
134 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. Is that a disease, a sign of nutrient deficiency, or a genetic defect?
6
votes
1answer
193 views

Basil: cold or disease?

A few days ago I put my basil outside. In a couple of days, the temperature fell considerably, and I think it got a shock, despite moving it back inside as soon as I could. I think this is the reason, ...
4
votes
1answer
210 views

What are these black spots on white splotches appearing on my tomato seedling?

Here are pictures of the infected leaves. I cut them off the plant as soon as I saw them today. Click for full size Here are close-ups of the most infected leaf: Click for full size What can ...
4
votes
1answer
98 views

Perpetually unhealthy tree. Suggestions? [Pics]

I'd like some help figuring out what the cause of my unhealthy tree is in addition to suggestions on how to fix it. The tree is at least 3 years old; I've lived in the house 2 years and each year it ...
8
votes
1answer
806 views

Why are the tops of my Brussels Sprouts turning purple?

What does it mean when the tops of the Brussels Sprouts start to turn purple?
6
votes
1answer
67 views

Is this a fungus?

I was doing my daily inspection of my plants I noticed this weird glob of stuff in the pot of one of my trees. I'm trying to figure out what exactly this is, because I've seen the same thing in ...
12
votes
3answers
6k 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 ...
8
votes
1answer
137 views

Jade: Can I repot and/or take cuttings?

I've read other questions on this and other forums on Jade plants, and haven't quite found an answer. My Jade plant is 20 years old and about 3" in diameter at the base and 4' high. It seems to never ...
6
votes
1answer
4k views

Zucchini leaves yellowing - but not powdery mildew

I have about 8 zucchini plants, about 6- 8 weeks along, which are starting to show signs of disease on the leaves. It's definitely not powdery mildew, but the end result is quite similar. Leaves are ...
7
votes
2answers
2k views

How can I revive wilted water basil plants?

I bought these basil plants from the store. They looked a little droopy and wilting. They came with several bunches and they were half off and discounted because they've been there in the store so ...
12
votes
1answer
340 views

What are these red cocoons in my trees leaves?

The tree In my garden as lots of red cocoons on its leaves, I assume these are insects, do I need to be concerned or are they harmless?
6
votes
1answer
196 views

What is this discolouration of the skin of my pepper?

One of my peppers is showing some strange discolouration of its skin. You cannot feel that it's there, so presumably this is underneath the outermost membrane of the fruit. As far as I can tell there ...
15
votes
2answers
2k views

Why are my apples rotting on the tree?

I recently bought a home that has an apple tree in the backyard. I don't know much about apples (or gardening in general for that matter) and I need help with a couple of things. I'd like some help ...
8
votes
2answers
3k 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 ...
12
votes
1answer
440 views

Why didn't my forsythia cuttings root?

In May, I took some greenwood forsythia cuttings, dipped them in a hormone rooting powder and planted them in rooting mix. The mix was kept moist all year. I had thought they had rooted because they ...
6
votes
1answer
52 views

How do I control blight in lantanas?

All my Lantanas have this blight on their leaves. What is causing it and how can I cure it?