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

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2
votes
1answer
36 views

Why are my blackberry leaves tasting like sulfur?

Many of you probably don't know, but you can eat a certain amount of blackberry leaves (and use them as herbs to make tea for diarrhea and stuff). The tea usually tastes and smells pretty good (kind ...
2
votes
2answers
62 views

Why did the leaves on my Christmas cactus suddenly change texture and colour?

I've been growing a cloned Christmas Cactus now for a few months, and it has been doing quite well. I moved to university 4 days ago (from Swindon, England to Bristol, England) and today I notice that ...
3
votes
2answers
133 views

What causes cucumber leaves to turn yellow, brown, wilt, die, and the plants to stop producing?

Every year it seems my cukes will go gang busters then suddenly the leaves turn yellow (starting with yellow spots), then turn brown, wilt and slowly die off. This all happens from the root crown and ...
11
votes
1answer
651 views

Tomato plant looks like it has grains of salt - what is it and how do I treat it?

My cherry tomato plant has been showing some yellowing of leaves over the past week or so. Just today I noticed the formation of these cluster of white granules - not sure if it's connected to the ...
2
votes
1answer
34 views

What could be keeping Crepe Myrtles from flowering?

3 mature (8-10') Crepe Myrtles (var. Raspberry Sundae) were installed approximately 4 years ago on a property on the south fork of Long Island. They seem to be thriving, and grow well each year. ...
5
votes
1answer
58 views

Why is my cactus droopy?

I have a cactus (pictured) which I bought about a month or so ago. It has been slowly drooping, although the tag said to keep it dry in winter and I have only watered it once when I re-potted it. The ...
3
votes
1answer
45 views

Why did the leaves on my Plumeria alba develop black spots and fall off?

I got a small Plumeria alba tree in my office, right next to a very sunny window. At first it was growing brand new leaves and looked great. Over time the leaves got black dots and fell off and the ...
9
votes
2answers
529 views

Why are there kinks in my aloe vera leaves?

On several of my aloe vera plants, the leaves suddenly became kinked. The leaf would get very thin in a spot and bend over. It starts near the tip and is most noticeable on older leaves. What is ...
3
votes
1answer
107 views

Why are my indoor strawberry's leaves turning brown?

There is a problem with my strawberry, see the photos It's been growing in this container for about four months. It grows indoors. I have fed it recently, after that the leaves started to turn ...
3
votes
1answer
121 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 ...
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 ...
3
votes
1answer
573 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
2answers
44 views

Why are my eggplants golden brown?

Right now I have 3 eggplant plants of the same variety (I think Ichiban, but I may have that confused) growing fruit, two of them are growing golden brown fruits, as pictured above, the other's ...
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 ...
13
votes
4answers
10k views

Why does my grass have bright green patches?

My yard is about 6 years old (new house). When we put the yard in, the seed was equal parts Fescue, Rye, and Kentucky Bluegrass. We live in NE Ohio. About 2-3 years ago, we started getting these ...
3
votes
1answer
58 views

Would spinach seeds not sprout because they are planted too low in the pot?

So, again being a newb as I am... I planted some spinach seeds in these black plastic pots that I transplanted other plants from. There is a good 3 inches of height in the planter with no soil. It's ...
4
votes
2answers
95 views

What are these small black things appearing on my cucumber leaves, and are they harmful?

There are these little black things on my cucumber plants that have started appearing recently. They are more concentrated towards the 'top' of the plant. They don't seem to be eating away the leaves ...
0
votes
0answers
33 views

How can I prevent my arborvitae trees from turning brown and dying every time I plant them? [duplicate]

I have replaced these Arborvitae trees 4 times. They keep turning brown. I cut out parts of the trees behind them, so they would get more sunlight. I Am watering them. Could it be a fungus? How can I ...
3
votes
3answers
104 views

Are my Emerald Arborvitaes recoverable?

I bought 31 thujas a couple of months ago and some of them are really struggling. I installed a drip line a week ago, but am wondering if these trees are completely dead. Here's a bunch of pics: ...
4
votes
3answers
278 views

Why is the bark falling off the base of my Corkscrew Willow's trunk?

I have a corkscrew willow, and the bark appears to be falling off around the base of its trunk. It seems as if something could be causing it, but I'm not sure as I haven't see anything obvious. This ...
3
votes
1answer
56 views

Why do many of my parsley leaves have white tips?

I'm not sure if this is normal? Not every leaf has this but lots of them do
3
votes
2answers
106 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 ...
3
votes
1answer
74 views

What is this white substance growing on a kumquat tree?

I've had a kumquat tree on two different balconies for about three years. It's put out a few kumquats over the years, and lately started to again. Recently I noticed this white substance growing on ...
2
votes
1answer
72 views

What are these reddish-brown growths on my succulent plant?

I recently discovered upon close examination of these strange, small, brown-reddish growths on the stems of my plant (picture below). This was a recent occurrence, after I placed the plant on the ...
3
votes
2answers
163 views

Why is my Japanese painted fern struggling?

I bought a Japanese painted fern several weeks ago. It was on the store's "reduced price" shelf, so it wasn't in perfect shape, but I figured I could try to nurse it back to health. So far, though, ...
2
votes
2answers
54 views

Why do the tips of my lettuce leaves look dark/burnt and feel brittle?

I am growing Batavian 'Arianna' lettuce in a container on my balcony. I'm in San Francisco, so it gets some sun, but it's not all day, and it gets a lot of shade too. I noticed that the tips of some ...
6
votes
1answer
490 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 ...
4
votes
1answer
74 views

What's causing my cucumber & melon vines to wither away?

I am in the UK and my cucumber and melon plants have started wilting. I used to water them twice a week and increased the frequency to once every two days since they started fruiting. They were ...
2
votes
1answer
71 views

Why aren't my potted herbs healthy, and water runs dark out of the parsley container?

I am growing spearmint and flat-leaved parsley in two 10” round containers. I water the plants a couple of times a week, and every 2 weeks or so water them thoroughly until the water drains out the ...
4
votes
1answer
44 views

What's wrong with my dwarf cherry tree's leaves?

I'm starting to see holes and some black spots on some leaves. Anyone know what this is and how I can treat this?
2
votes
1answer
71 views

Why doesn't my night-blooming Cereus produce flowers?

I have had a night-blooming Cereus for several years and it has yet to bloom. A friend has one and it blooms no problem. This plant is indoors and keeps growing, but no blooms. What can I do to make ...
4
votes
4answers
237 views

Why is my new Acer tree dying?

I recently bought a small red Acer and moved it into a more permanent pot. It's about 2 1/2 feet tall and since I've moved it, the leaves have have started to brown and shrivel like a dead leaf would ...
5
votes
2answers
440 views

What is causing the rotting/brown spots on my plum fruit?

I inherited a plum tree in my garden. I haven't yet been able to get a healthy looking plum from it. All the plums that turn to a ripe purple colour seem to have the following problem - Can anyone ...
4
votes
1answer
139 views

What are these lines on tomato leaves? [duplicate]

I have planted some tomatoes in my garden. The plants have started showing white lines as shown in the picture. Is this some disease? If yes, What kind of disease is this? Is it safe to eat tomatoes ...
2
votes
1answer
364 views

What is causing my lavender's leaves to turn grey and wizen?

I am trying to grow a lavender plant on the windowsill of my apartment in Brooklyn. I got this more succulent lavender after some more delicate french lavender had died on the same sill. This plant ...
5
votes
2answers
182 views

What is this dead light brown patch on my lawn, and how do I get rid of it?

I have a speckled, dry brown patch on my lawn that won't go away: I first noticed it a month or so ago while mowing the lawn, when it was isolated to a single area of several square feet. I figured ...
3
votes
1answer
71 views

Bugs eating my yellow bell pepper

For some reason my yellow bell pepper plant is dying very quickly. When I first got the plant it was thriving putting out peppers like no end. Now the branches are turning brown leaves falling off. ...
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 ...
4
votes
2answers
120 views

Why are my lilacs dying and what can I do about it?

I have some large, old lilacs that seem to be dying. They start out great in the season, then leaves on individual branches start to get a variegated look, then curl, then brown, then finally die. I ...
2
votes
1answer
43 views

Why are my hydrangea flowers dying, but the leaves look OK?

I bought some Hydrangeas in pots in full flower. They were then left un-watered. They are now suffering from dead flowers but the leaves look OK. It is now August in North Yorkshire. Any ideas what I ...
6
votes
2answers
3k 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 ...
3
votes
2answers
77 views

What are the scratch marks on the undersides of my tomato fruits?

I am seeing scratch like marks on bottoms of my tomatoes. What is causing this? Possibly chipmunks? I have tried eight solutions with no results.
4
votes
1answer
111 views

What is causing yellow spots with 'hair growth' on the underside of the leaves on my tree?

I've slowly been bringing this tree back from some devastating summers 5 years ago where several large branches died. I've been diligent about pruning and feeding. For lack of a better description, ...
2
votes
2answers
203 views

Why are my hibiscus buds & leaves randomly turning yellow and dropping off?

Besides the random yellowing and dropping off of leaves and buds, the plant is otherwise putting out new buds and flowers pretty well. What might be causing this? The plant is in partial shade ...
3
votes
1answer
94 views

What could cause brown spots on the leaves of a Song of India plant (Dracaena reflexa)?

As you can see in these pictures our Song of India (Dracaena reflexa) is having some problems. I say it is too much water, while my wife says not. What do you say? Click any photo for full size
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 ...
3
votes
2answers
67 views

Are these bushes sun damaged?

I have two of these bushes -I'm not sure what they are, maybe somebody knows? It looks like they might be sun damaged. I know that there used to be a tree nearby that provided some shade, which makes ...
2
votes
1answer
53 views

What is causing curling leaves on my potted Rosy Glow barberry bushes?

I have a few Rosy Glow Barberries that I bought when they were little. I live in a very hot and humid area, so I put them under 60% shade cloth. Well, they turned green, so that told me that they ...
4
votes
2answers
67 views

What should I do when a courgette-plant's stem has split open?

I have one courgette plant in my bed and it seems to work well. We just had 2 super hot days (35 C) and I just saw the the stem (which has become really dark recently) has split open very close to ...
2
votes
1answer
50 views

My bean plants appear to have rust

They're a variety called 'yard long' I think. Could somebody confirm or let me know what else it could be? What's the best way to treat them? It has been a pretty wet spring. We're in zone 3/4. Oops ...