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

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6
votes
1answer
92 views

How can I prevent my banana tree from drying out?

We live in Lahore , Pakistan where temperature in summers reach 45 degrees Centigrade. Our banana tree is drying out in the sun. What is the best way to ensure that it remains healthy? This banana ...
4
votes
3answers
218 views

Are my tomato plants damaged by a chemical or a disease?

Most of my tomato plants have started showing signs of what I think is Cucumber Mosaic Virus. I have shoestring, fernleaf, and curling leaves. They also have a leathery appearance. At first I thought ...
4
votes
2answers
475 views

Why is my Australian Tree Fern's leaves curling up at the ends and looking kind of burnt?

I have an Australian Tree Fern and its leaves are starting to turn 'crispy' at the tips. One branch looks like it's been burnt almost. Can anyone tell me why?
2
votes
1answer
149 views

Is my newly planted weeping willow in shock?

This spring, I planted a weeping willow tree (salix x) in my yard, in an attempt to help dry things out. I'd heard they love wet conditions, and can grow up to 8' a year. Well, it has been almost two ...
3
votes
1answer
82 views

Why does my apple tree not bear fruit?

I currently live in southern Massachusetts. When an apple tree in my backyard blossoms and the little apples begin to show, they all disappear and begin to fall on the ground. FYI, there are also ...
2
votes
1answer
58 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 ...
4
votes
1answer
60 views

What are these growths on my winter hardy Opuntia?

I received some winter hardy prickly pear pads from a friend last fall. They rooted well, survived the winter well (better than many other plants around here), and are putting out new growth. On the ...
3
votes
1answer
136 views

Why did the leaves on my purple leaved barberry turn green after planting?

I recently received a small potted purple leaved barberry bush. I planted it in good topsoil with a ph of about 6.0. The area gets about 5 hours of direct sun per day. There is one large boxelder tree ...
3
votes
2answers
234 views

How do you know when a tree has died?

A tree trust planted 2 trees for me along my fence-line. One hasn't budded at all this spring, the other tree has a few small leaves on one of the lowest branches. I have a lot of ...
3
votes
4answers
160 views

What's this gash on a Maple tree?

What's this gash on a Maple tree? It seems almost "infected" compared to the "normal" splitting I see on the other Maple tree right now. NOTE: It's been raining all day. That second photo is ...
1
vote
1answer
66 views

Why does my plum tree never come into fruit?

My mini tree is around 4 years old now. It had a mass of blossoms in the spring but they have all dried up into dead clumps. In fact this happens most years. What am I doing wrong?
4
votes
1answer
448 views

Why are my zucchini flowers closed?

Wondering why my zucchini flowers are closed? Should they be open? I know some flowers close at night and open during the day, however my flowers seem to be closed all the time.
4
votes
1answer
137 views

What conditions cause trunk sprouts on oak trees?

I asked a similar question here, but something annoying is catching my attention. Almost all of the pin oak trees in my area are sprouting up and down the trunks like crazy this spring, many of them ...
2
votes
0answers
64 views

What is eating my orange trees? [closed]

I have 3 navel orange trees in my backyard and the leaves are being eaten by something. What is it that is eating the leaves, and what can I do to prevent this?
6
votes
1answer
435 views

Why is my Swiss chard suddenly wilting?

I live in Brooklyn, New York, U.S.A. This Swiss Chard has been doing well so far this season, and all the largest leaves you see here were green and strong as recently as a few days ago. We had the ...
4
votes
1answer
3k views

Why does my mint have dry, brown or black leaves and stems that are falling over?

What do I do for an indoor mint plant with dry leaves and stems which are falling over? Some leaves are brown or black.
6
votes
2answers
206 views

Why has the stem of my chili plant split?

I have a couple of newish chili plants growing in pots on my windowsill, they're about 15cm or so tall and seemed to be doing well enough so far. However, this morning I've noticed that the stem at ...
4
votes
1answer
534 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 ...
4
votes
1answer
146 views

Why has my cactus has turned red/ beige at its base?

One of my cactus turned red at its base about a year ago and it has since spread upwards. Some websites say it is a natural ageing process but I doubt so because it is still so small! Now another of ...
3
votes
1answer
2k views

Why are my Aglaonema's leaves turning yellow rapidly?

I have an Aglaonema (also commonly known as a Chinese Evergreen) at my desk at work. Over the past month or so, its leaves have been yellowing and dying rapidly. This is how it looked today, a Monday; ...
3
votes
1answer
108 views

How can you get orchids to bloom again? [duplicate]

My aunt has several varieties of store-bought Phalaenopsis orchids which were blooming when she bought them last spring. However, after the blooms fell off, they did not bloom again. Throughout the ...
5
votes
1answer
116 views

What kind of disease does my orange tree have?

Within the span of a few days, my Citrus sinensis started to display what looks like dandruff on the back of the leaves. As of now, many leaves have dried up and some have fallen on the ground. What ...
1
vote
1answer
93 views

What is wrong with this plant?

It has been like that for quite a while it looks like something upset her. What is wrong with it?
2
votes
1answer
136 views

Raspberry disease

My Raspberry has got some disease. Please see the picture. Can anyone advise me on what is this and how to treat it?
3
votes
1answer
252 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
1
vote
1answer
144 views

Orchids not flowering

I have these orchids that I bought three years ago, and they are not flowering. At the beginning they almost died because of insufficient light in my home. I moved them next to an always-on artificial ...
3
votes
1answer
121 views

What could cause my coriander plant to start browning?

I grew coriander from seeds and the plant has done marvellously well until the last week or two where it appears to have stagnated a little. I noticed that some leaves have began to brown entirely, ...
5
votes
1answer
418 views

Is this mint fungus, or over/under watering my plant?

I have two mint plants that have grown without much fanfare. Occasionally I do notice the odd leaf with very dark brown edges, almost black. Some leaves also appear to have a powdery white substance ...
3
votes
1answer
103 views

Identify this Insect or Fungus. Possible Scale

I do not know the name of the plant and I have battled brown scales on my ficus before at my office. What is attacking this plant? Could it be some type of white scale? It is not mealybugs.
3
votes
1answer
110 views

How do I get my Jade plant to grow again? [closed]

We've recently moved, and while traveling to our new home all my house plants have turned brown. But importantly my jade has stopped growing. It is down to two leaves that are very loose in soil. I'm ...
7
votes
2answers
575 views

What is happening to the leaves of my avocado?

I have an avocado plant in my outdoors balcony. It's been growing nicely, but there are small brown dots/holes in the leaves for some time now. I don't see anything in the underside of the leaves, and ...
2
votes
2answers
251 views

Soil insects in potted gardenia

I was given a gardenia in a pot as a parting gift from a fellow house-sharer a few years ago. I keep it as a houseplant on a bedroom windowsill. It's looked increasingly sickly since then, but it's ...
1
vote
1answer
119 views

What are the black flying things and why do the leaves look like this?

These are photographs of my dahlia, marigold, and nasturtiums. I'm not sure what I'm doing wrong. But my plants are dying, and I'm unsure why. I've tried giving them a good wash previously, and ...
2
votes
1answer
62 views

Cause of plants dying

I am in the UK, midlands. Have these seedlings in a greenhouse and they were doing quite well. Almost getting ready to stick them in the ground for winter. Almost overnight they have died. Can anyone ...
4
votes
1answer
327 views

What is wrong with my lemon tree? [duplicate]

Below is a picture of my lemon tree, which now have some sticky web infection. See left corner on the first picture. On the second picture is a close up of something that is being spread from the ...
1
vote
1answer
349 views

How to remedy die-off of lower and middle branches on my plum tree?

Introduction I have a plum tree that is not doing well. It is situated alongside a dirt road which gets regular (but not heavy) traffic. There's not a lot of wind, and the sun shines on it for about ...
1
vote
1answer
62 views

Why did our cactus die?

We had a cactus named eddy and he died, he had a stretched body with a sphere on top as a head and two little spheres attached to it like eyes. He looked like Echinocereus triglochidiatus but with ...
4
votes
2answers
550 views

Why doesn't my fig tree produce fruit?

I have a fig tree but it hasn't had any fruits on it yet. I don't know which variety it is, I got it when it was only a few inches high. It's planted on a West facing wall of my bungalow, but like I ...
2
votes
1answer
65 views

What are the ideal conditions for Lobelia cardinalis

I have been trying to attract hummingbirds for a few years by planting flowers that they like. Two of these are Lobelia cardinalis and Lobelia siphilitica. They are both said to: be perennial need ...
3
votes
1answer
3k views

A visual reference to nutrient deficiencies in plants [closed]

Often times we cna look at the leaves of a plant to determine what nutrients are missing in the soil which the plants need. It would be nice to have a repository of images with accompanying ...
6
votes
1answer
97 views

Hard potatoes harvested

First time grower in Michigan, partial shade and probably not the best soil. The red potatoes I got out first were very hard. Why? What can I do to prevent this with the rest of them before they ...
2
votes
1answer
88 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 ...
6
votes
1answer
226 views

Why are my tomato fruits developing black, mushy spots before they can ripen?

My tomato fruits are going bad before they have a chance to go from green to red. Can anything be done this year to the plants I have? I have same problem with every new fruit.
5
votes
1answer
730 views

Why won't my mulberry tree set fruit?

I have a mulberry tree which has been in my garden for 4 years. I bought it at a market and I think it was a seedling. It has grown to a height of 4 metres and is thriving. Each year it has flowered ...
3
votes
1answer
540 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 ...
1
vote
1answer
72 views

Does it look like a vine borer caused this damage to my zucchini?

After reading the accepted answer on the question "Is something wrong with my zucchini plant?", I've come to the conclusion that it is in fact a vine borer which has invaded my zucchini. Based on the ...
1
vote
1answer
251 views

What is causing my Gladiolus blooms to open withered?

My glads are blooming but the majority of the flowers are opening withered like they are already fading. They are wrinkled with grayish discoloring. The blooms pictured below are newly opened or ...
4
votes
1answer
346 views

Why are my raspberry's leaves curling up?

Last fall I planted 4 raspberry plants, two Heritage and two Killarney. Recently the two Heritage have had a handful of leaves curl up and fold in half so you only see the bottom of the leaf which ...
3
votes
2answers
4k views

Why is my Norfolk Island pine not doing well?

My Norfolk Island pine is not doing so well: the needles are turning brown and the branches are drooping. See photos below. Why did this happen to my plant, and how can I cure it? Click photo for ...
1
vote
1answer
171 views

Why have some of the leaves on my cherry tree sapling suddenly gone very pale?

Several months ago, I planted three cherry trees, one in the front garden, one in the back and one in a container in the house. The one in the front has really struggled, whereas, predictably, the one ...