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

learn more… | top users | synonyms

2
votes
0answers
119 views

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

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
153 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 ...
2
votes
2answers
600 views

What's wrong with my chili bush?

I've had a chili bush I grew from seed for about a year now, and it's finally growing into something resembling an actual bush (rather than just a seedling) and it was going great until the last few ...
1
vote
1answer
148 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.
2
votes
1answer
109 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 ...
3
votes
1answer
564 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 ...
6
votes
2answers
159 views

cultivating a cactus from cutting

I've recently gotten a san pedro (Echinopsis pachanoi) cutting as a gift. I'm trying to take care of it as good as possible, but I'm not sure if I'm doing it the right way. The situation is: the ...
2
votes
2answers
4k 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 ...
4
votes
3answers
2k 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 ...
3
votes
1answer
106 views

What is this houseplant, and what can I do to keep it from going downhill?

Looking for help with this plant we recently got. Not much of a plant person, but struggling with this one in particular. Don't know what it is..but I think it's slowly going. I think the soil is ...
5
votes
4answers
295 views

Second opinion: Arborist says tree needs to go

I just had an arborist look at a red maple with a long bark split in my yard. His diagnosis was that it was struck by lightning (there was a close lightning strike a few months ago) and the tree needs ...
6
votes
1answer
808 views

Why is my cactus purple?

This has been going on for a while (about a year), one of my cacti has turned purple. I've just replanted it after its pot fell and broke (no, it did not spend the year on the ground). What is the ...
5
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 ...
6
votes
1answer
484 views

What are these brown patches on my 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
2k 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
744 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 ...
4
votes
2answers
5k 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
0answers
91 views

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

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 ...
6
votes
2answers
1k 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 ...
5
votes
1answer
468 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.
3
votes
1answer
172 views

Is it too late for this tomato?

I started these tomatoes on the soil and they were kind of crowded. I placed 2 of the largest ones in a separate container and they already have 2 tomatoes and lots of flowers, these where the others ...
2
votes
1answer
537 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 ...
5
votes
2answers
283 views

What is this disease on the growing tips of my peppers, and how can I control it?

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
1k 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 ...
7
votes
1answer
735 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 ...
5
votes
1answer
405 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.
5
votes
1answer
687 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 ...
6
votes
1answer
609 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? ...
3
votes
1answer
241 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 ...
6
votes
1answer
235 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, ...
5
votes
1answer
278 views

Are large strawberries supposed to be fan-shaped?

My new Gurney's Whopper strawberries are growing large as advertised, but are an odd fan shape. Is this normal or am I doing something wrong? I have here a picture of Gurney's Whopper strawberries ...
6
votes
1answer
277 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 ...
4
votes
1answer
110 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 ...
4
votes
1answer
258 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 ...
5
votes
1answer
273 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 ...
6
votes
1answer
71 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 ...
8
votes
2answers
2k 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 ...
8
votes
1answer
1k 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?
10
votes
12answers
11k views

How do I get rid of pill bugs in my vegetable garden (or is it even the problem)?

I have had multiple plants in my vegetable garden that have seemed to just vanish from the garden over the period of about a week. I have notice pill bugs eating the remains of the plants. They seem ...
8
votes
1answer
144 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 ...
13
votes
4answers
7k 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
144 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
57 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?
7
votes
2answers
564 views

What is the problem/disease that causes bobbly peach tree leaves?

What is the likely cause of the bobbly forms on the leaves of a peach tree? Does it matter or is it just some natural anomaly that doesn't affect the tree's health? If is it a concern how can it be ...
5
votes
3answers
1k views

Are woodlice eating my carrots?

I lifted some carrots this evening. It being December these are carrots which have been in the ground some time. They're big and fat, they need cleaning up and the damage needs cutting out, but ...
9
votes
1answer
138 views

Why are my persimmons black beneath the hull?

My mother's persimmon tree is producing fruit that tastes good, but the area at the top beneath the leaves (the hull/calyx) is black. The local nursery suggested the fruit may be getting too much ...
12
votes
1answer
459 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 ...
10
votes
2answers
2k views

Why are my squash's leaves drooping?

This past growing season (2011) I was growing squash. Often I would find that the leaves had drooped (lost rigidity). Watering the plant seemed to help; but I'm not sure if there is a causal link ...