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

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11
votes
3answers
3k views

Insect infestation on my pepper plant, what do I do?

I have spotted that one - and only one - of my peppers plants has a number of small black flies of some type hanging around the soil. And while writing this I've just spotted that one (and only one!) ...
14
votes
1answer
4k views

What is my citrus deficiency, based on leaf appearance? And how to treat?

In the images of my citrus below, you can see the leaves are paling towards the edges. What is the deficiency and how can I fix it? The soil is clay-dominated with some sand and coloured red, ...
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 ...
11
votes
1answer
3k views

How do I get rid of this white stuff on my pumpkin leaves?

The leaves on my pumpkin plants have what looks like a white mold growing on them. What is this? If it is harmful, how do I treat it?
10
votes
1answer
4k views

Schefflera arboricola - where to place it? Too much water?

I have a Schefflera Arboricola (also known as Strahlenaralie). I've placed it in my office so that it receives some sunshine, but not directly - I've put it behind a plastic plant (on the right on the ...
8
votes
1answer
383 views

What insect eats petals and what can I do to kill it?

My geraniums loved being outside the front window of my house. They've been thriving there for over two months now and I thought I'd finally found a winner (it's too hot for pansies and other daintier ...
13
votes
1answer
534 views

tomato plant rotting from the inside — what's going on?

I have a hydroponic garden in a greenhouse in my yard. Everything was going just great until today when I noticed that one of the 7 or so tomato plants (the biggest one in fact) was looking rather ...
13
votes
2answers
627 views

What are these cracks on the bottom sides of my tomatoes?

Recently I noticed the following cracks and small holes on the bottom side of my better boy tomoato plants. I am in Maryland and we have not had a lot of rain the past month however I regularly try ...
14
votes
4answers
7k views

Why hasn't my strawberry plant produced any fruit?

I have a plant I bought that was started from Home Depot. Unfortunately it hasn't grown any fruit, even after a whole year. Around May this year (my second year), it produced two small flowers and it ...
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 ...
19
votes
2answers
457 views

What gave my carrots “legs”?

This is the first year I've grown carrots. What gave them legs: I have a theory that the seedlings merge together. I don't know if that is just silly or if carrots just naturally grow like this.
8
votes
1answer
569 views

Why is my phalaenopsis' keiki (orchid) not thriving?

About five years ago, I bought a fully grown and blooming Phalaenopsis orchid. After a month or so, the blooms fell off as expected. I continued to care for it as directed, but it never flowered ...
6
votes
1answer
55 views

Why is my flowering crab stunted?

I have two flowering crab apples planted 2 yrs ago beside each other (20 ft apart). When they went in they were identical. However for two years the one has flourished and the other is anemic, such ...
9
votes
1answer
340 views

What's causing my potatoes to wilt?

I'm growing yukon gold potatoes. They've been growing like gangbusters, but this week I noticed some leaf yellowing and wilt on at least 3 plants out of 9. Why are they yellowing? Is it anything to ...
9
votes
3answers
2k views

Why won't my pepper grow?

For the past three years (since I started gardening) I've tried with no luck to grow peppers. Two years ago I was able to grow a few pepper plants (out of many) but the peppers did not get very big. ...
12
votes
1answer
6k views

What does it mean if my tomato leaves are curling?

The leaves on my tomato plants are curling up and I'm wondering if they are getting enough water. The leaves are still green and there are tomatoes on the plant, but I didn't know if that was a sign ...
8
votes
2answers
657 views

Why did my tulips die?

I planted three bulbs in a small vase, around 20 cm diameter, without a drainage hole. I planted them in November, outside under a roof, facing East, and watered them when the soil was dry. I'm in ...
6
votes
1answer
791 views

Why do my gardenias turn yellow before they bloom?

My gardenias seem to be happy all year around, but when they bloom, they turn half yellow. Is there a way to keep them green through the bloom phase?
16
votes
1answer
490 views

How do I help my kitchen window herb garden thrive?

For the last couple of years, I've been nursing along a sort of kitchen window herb garden consisting of cilantro, parsley, basil and chives. What I've done is bought live herb plants at our local ...
7
votes
2answers
12k views

Why did my pepper plants suddenly shrivel?

I've been growing pepper and chili plants in a greenhouse on my balcony since March and they have been growing strong. However, I started a new job last week and have not had the time to tend to them. ...
14
votes
2answers
546 views

Why don't my radishes swell up?

When I grow radishes, I find that some of them don't swell up to form the globe I expect; instead the root stays thin. These are planted in the same bed and at the same time as radishes that do ...
8
votes
1answer
476 views

Why did the stem suddenly weaken in my oriental poppy?

I have an oriental poppy 'Patty's Plum' growing in new potting compost in a pot with good drainage. It sits in full sun, and I water it as needed in the recent dry weather. I purchased it from a ...
11
votes
2answers
4k views

Why have my tomato leaves started yellowing at the base?

One of my tomato plants (Better Boys if that matters) has a few leaves that have started yellowing on the lower branches. Not sure if they aren't getting enough water, or if they are diseased or what. ...
15
votes
3answers
7k views

What do purple tomato leaves mean?

Sometimes the leaves of the tomato seedlings we grow in pots gain a purplish shade on the bottom; the plants themselves (don't know if this is a coincidence) also seem to turn out stockier, shorter, ...
11
votes
1answer
652 views

Strawberry plants brown & brittle - is it disease, climate conditions, or bugs?

Most of my strawberry plants have leaves that first turned red, then brown and brittle. Leaves often snap off when harvesting what berries remain after the critters get them. I'm trying to balance ...
12
votes
1answer
447 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?
10
votes
1answer
1k 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?
8
votes
2answers
802 views

What can cause the leaves of a rose bush to turn black and fall off?

I bought a small rose bush on Mother's Day this year and planted it in my flower garden. The area probably has too much shade for a full sun plant, but I don't think that is the issue here. Shortly ...