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Questions tagged [diagnosis]

Gathering of information and facts to determine the root cause of a plant that is failing to thrive.

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1answer
9 views

Why are my strawberry leaves turning brown at the tips?

As you can see in the picture attached, the leaves of the strawberry plant are turning brown at the tips and I don't know why. While it has recently moved to a new home, it is always indoors by the ...
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2answers
38 views

What is happening to my Serrano Pepper?

I recently started gardening and this is one of my first plants. Can you help me understand what's wrong with it? Location: Souther California (warmer weather). Plant location: In a pot, outside (5th ...
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2answers
45 views

My poor sick apple tree - what’s the mould?

This apple tree has this growth on many of its branches (say, 30%). It also hardly produces any fruit. How can I make this tree healthier?
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0answers
23 views

Why aren't my year-old apple seedlings thriving?

I planted a variety of seeds from apples from a local orchard. They have been growing for almost a year. They are about 8" and have suffered aphids and a white powdery fungus. I have sprayed plants ...
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0answers
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What are these brown and white patches on my jelly bean succulent / sedum rubrotinctum?

I recently bought this jelly bean succulent but I didn't notice these brown and white spots. I really should've check the plant, but I just love succulents and I was too excited. Seems like the white ...
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1answer
45 views

Why are my avocado plant leaves brown and brittle?

I have a small avocado plant that sprouted from seed this summer (June). It was thriving for a while and then it stopped growing and started getting brown leaves. The leaves start getting brown on the ...
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0answers
39 views

Kalanchoe - thin leaves and white spots

This Kalanchoe has been losing leaves for a while now, the existing ones seem thin and white spots have appeared. I have repotted it recently and it has shown signs of improvement, but it still does ...
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0answers
22 views

Dying Peace Lily

I have a Peace Lily which has done well very a year in front of sliding doors. It has started drooping like it needed water to which I watered it and usually it perks right back up. It didn't this ...
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1answer
23 views

Flies on gardenia

My gardenia leaves looks healthy. I moved it indoors more than one month ago and I started noticing few yellow leaves. I spray it with NEEM oil and soap pesticide about once a week. I have noticed ...
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1answer
44 views

Unhealthy orange tree

Our young orange tree (planted in the spring) has been healthy but growing slowly. I’ve noticed light blue spots on the leaves (EDIT: upon a second look, I realized that the spots are really white, ...
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1answer
40 views

What is happening to my Agave attenuata

I have owned the depicted Agave attenuata since about half a year. It was outside until early November when local temperatures became too cold. Now it resides in in a light, moderately heated room. (...
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1answer
25 views

Strange spots on leaves on rubber plant (Ficus Black Night)

I purchased this plant about a couple weeks ago and when purchasing I saw these strange tiny black spots underneath the leaves but I went ahead and purchased anyways since it was the last one left. ...
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2answers
38 views

Reviving rubber tree - almost all leaves are gone - one shoot left

I moved away for a year, and left my rubber tree with a friend - unfortunately I think the move shocked it, and it's now lost almost all of its leaves. Do you have any tips on what I could do to ...
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1answer
20 views

White spots on leaves

Hi. I hope this is right place for the question and that it's not a duplicate I am concerned by the white spots as shown in the picture. What can that be? It affects only one of two plants sitting in ...
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0answers
19 views

Why are my potted outdoor Plumeria leaves turning yellow and brown?

All the leaves are yellow, with red around the edges and then eventually start turning brown?
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0answers
12 views

Magnolia leaves browning and falling

My Kay Paris Magnolia has browning leaves, which ultimately fall off. I also notice spotting on the leaves. Neighboring trees have a scale problem, but not much on this tree, which I also put white ...
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1answer
38 views

What's the name of this plant [closed]

DID ANYONE KNOW THE NAME OF THIS LEAVES FROM THIS SKETCH?
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1answer
59 views

Why are the ends of my strawberries not formed properly?

My strawberries have just started fruiting and they have turned red quite nicely, except that the ends seem to be this brown/black colour which hasn't gone away. They are growing in a home-made ...
2
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1answer
26 views

Browning aloe leaves - what do I do?

My aloe plant is currently browning a little. I reported it about six weeks ago into a cactus and succulent mix. I separated some of the aloe pups to grow, they’re currently doing something similar to ...
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0answers
43 views

Cactus shoots drooping and turning olive

Hey Gardening & Landscaping SE, happy to be a new member! I am concerned for my cactus shoots and hope you are willing to help me out. Short version: My 3,5 months old cactus shoots are starting ...
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1answer
47 views

I can’t figure out what’s wrong with my aloe

I’m getting worried about this little plant. It was potted about two weeks ago, I watered it on Sunday (waited about a week after putting before watering the plant). Now the bottom leaves are ...
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0answers
26 views

Peace lily leaves with small, round bumps. Is this normal?

My peace lily (purchased and repotted two months ago, kept in medium light environment in town with hard water) has some leaves exhibiting round bumps along the main stem. Is this normal? If not, what ...
3
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1answer
58 views

How can we save the trees in our historical garden from dying?

Our historical building is located in a big garden with 2700 pine trees in Khaf city, Iran, and about 300 trees have died. Is there anything we can do to save these huge trees? Khaf city has warm ...
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0answers
22 views

Pineapple leaf discoloration?

Can some tell me what’s going on with my plant? I have not done anything different and this started when we moved it inside.
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1answer
51 views

Can These Plants Be Saved?

I believe the more dead one is sage. How should I help it? Also the plant with brown ends on the stems is mint. Should I cut off the brown bits? I don't care about harvesting or eating them I mostly ...
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0answers
25 views

Why are my tomato plant leaves turning brown, shriveling, dying?

This has been progressive over the last 6 weeks, leaves turning dry, brown and getting very thin and shriveling like paper on a Tomato "Blue Berries" cherry tomato plant. The closest I could guess ...
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1answer
77 views

Dirt mound in backyard

I see several dirt mounds in my backyard. These are usually around 6 inches in diameter with no obvious hole caused by an animal. Can you please help me identify what is causing it and also how to ...
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0answers
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how to best take care of a xanthosoma sagittifolium?

A few months ago I bought a big beautiful xanthosoma sagittifolium. I have it situated by a northern facing window because I read it does not like full sun. I'm very confused by this plant because it ...
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1answer
40 views

Is there anything I can do to save my cactus? Thanks in advance!

Does anyone have any suggestions about what I can do to save my cactus? I've summarized a timeline below 3-4 weeks ago: Small sunburn-ish looking thing appears. It's near the top of the cactus, not ...
2
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1answer
134 views

Kentia Palm's Outer Leaves Are Browning Quickly

I have bought a kentia palm about a year ago and I live in a warm and relatively humid climate. Some of the leaf tips have gone brown here and there in the past year, but I have noticed that the outer ...
3
votes
1answer
66 views

Webs, black spots, and dying leaves- what disease is inflicting my plants?

I'm trying to identify an plant disease that has infested my sage, rosemary, and oregano. The plants have have a few webs on their leaves and there are black dots all over the plant, which don't seem ...
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0answers
83 views

Pilea Dark Mystery Drooping

My pilea dark mystery is really drooping. I haven’t a clue why because I’ve watered when the soil is dry- ie: about once a week. I haven’t had it for long. Only thing I can think of is I re-potted it ...
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0answers
15 views

Magnolia not flowering well

My Magnolia ‘Vulcan’ flowers are not looking right. Attached photos are all new growth (in Australia, just entering Spring). Any thoughts as to the issue?
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0answers
28 views

Bartlett pears are all shaped like apples this year

This year for the first time all the pears on my 13 year old Bartlett pear tree are in the shape of round apples I am in South Carolina. Is this some sort of a deficiency. The tree looks normal. And ...
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0answers
31 views

Mango plant drying leaves suddenly

My plant is in a tough situation suddenly, don't know why. I live in Italy and I took this plant from Pakistan and its chunsaa mango. It has already passed its drying leaves stage and was getting ...
3
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1answer
156 views

Why are the leaves on my young avocado tree drooping?

This young avocado tree was grown from an avocado seed and is about 6 months old. I live in Tucson, Arizona and keep it inside my house by a south facing window. There's no direct sunlight in this ...
5
votes
1answer
173 views

Reviving a very old rose

This rose is at least 30 years old and struggling with resistance to diseases and pests attacks. I treat it religiously to protect it from black spot, mildew.... However, this summer has been very ...
5
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1answer
56 views

What's causing mottled leaves on my Schefflera?

What is causing this discoloration on my Schefflera's leaves? It's like a water color effect. There may be embedded bugs in some leaves.
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0answers
57 views

Why is my avocado plant dying with brown, decaying leaves?

A few years ago I grew an avacado plant from some seed and some time later leaves started turning brown and fell from the plant. I tried a lot, but landed on the thought that perhaps since it has ...
5
votes
1answer
85 views

pencil pine trees

Pencil pines are planted in a concrete border and right next to and below our retaining wall, they have grown very tall and the trunks have nearly outgrown the border. What damage will they cause to ...
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0answers
47 views

What’s wrong with my wilting aloe Vera?

I’ve been trying not too water it too often or too little but it’s just looking sad. What do you think could be the cause of this and can it be saved?
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4answers
69 views

Rose rosette starting?

My first scare. I am familiar with new red growth but this. I did just feed a few weeks ago and I am seeing a lot of new growth, new red growth, new green leaves on all my roses. This is a new plant ...
2
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1answer
40 views

Camelia with virus?

What is the problem with this white camellia? Some leaves are getting completely yellow but the plant is generally very vigorous. Is it virus? Is there a treatment?
3
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1answer
32 views

Diagnosis - sick blueberry plant

I ask for help on behalf of my mother, who has a potted blueberry plant in her garden: the label says Vaccinium corymbosum, "giant American blueberry". About a month ago my parents left for a week, ...
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2answers
73 views

Can someone diagnose the problem with my Wine and Rose Weigelas please?

I have 6 and they all show the same stunted growth on some branches. The first photo shows the weigela that shows the most deformity. Thanks for any help!
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1answer
44 views

What is happening to my succulent and how can I cure it?

My wife got three different succulents from a friend for her birthday. One of them started turning brown on the stems and tips of leaves about a week ago. She's been watering them consistently (...
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3answers
93 views

Okra will not produce pods

I am attempting to grow okra around Portland, Oregon area, USDA hardiness zone 8b. I am growing them in a makeshift greenhouse make of some clear plastic tarp over a raised garden bed. This was ...
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0answers
133 views

Dark spots on cactus?

My elderly relative has asked me to do a research on her cactus which has recently got these dark spots: I poked them and they are dry and hard when you touch them. There is no liquid or mush. They ...
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0answers
92 views

Birch trees with peeling bark and black area on trunks

I am wondering about my trees in our front yard. They seem to be peeling much more than others in the neighborhood and have black patches on the trunk. Any info on what I should do?
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2answers
74 views

What's wrong with my garlic? Overwatered or lacked nutrients?

I'm growing 9 garlics in one container. Previously 10 but the other one died. Currently, some of their leaves are turning yellow and they are still one month old. I used a soil-less medium and I apply ...