For questions about how to maintain or assess a plant's health.

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2
votes
1answer
248 views

Which plant is this? “Dead ends,” pruning, watering tips

This plant has been in my possession since last summer (I moved into a new, and otherwise empty, apartment one year ago). I wanted to keep it, but because there are no labels, I decided to water it ...
1
vote
1answer
82 views

Why are lots of bubbles coming out of a freshly cut lotus stem?

I cut some old lotus leafs, and there was one stem from which many bubbles got out. I started to worry when I realized that it had been minutes and minutes (I would say at least 10) since the bubbles ...
1
vote
1answer
57 views

Why is the lower leaf wilted on all of these plants? Should I remove them?

These basil plants have been thriving steadily better and better since being transplanted as sprouts. However every one of this group of 8 in the end of a planter is exhibiting a wilted leaf, and ...
2
votes
1answer
383 views

Why are the leaves turning yellow on these conifers?

I have two kinds of conifers in the front yard. They are in a spot with eastern exposure, but the sunlight is somewhat blocked by a big house on the south side of the yard. They get a lot of shade in ...
6
votes
1answer
261 views

Venus flytrap/Dionaea muscipula doesn't grow traps anymore

I've had this Venus Flytrap since about 6 months. It was in bloom when I got it (for some reason shops like to sell flowering plants). I read that flowers take a lot of energy from the plant, and ...
6
votes
2answers
205 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 ...
1
vote
1answer
203 views

Dwarf Alberta Spruce Winter Burn [duplicate]

I have a Dwarf Alberta Spruce which is showing signs of worse-than-normal winter burn. Not only have the needles on the south side of the tree browned, but the new buds on that side also appear to ...
1
vote
3answers
135 views

Are these cobwebs harmful?

I have a new succulent that I'm taking care of, but over the past couple of weeks it has been picking up some fluff that looks a bit like mould but that I believe is cobwebs of tiny spiders. I've read ...
3
votes
1answer
44 views

Trouble with old ornamental orange tree

My 40-year-old orange tree, originally bought by my mother's friend at the local grocery store as a tiny house plant, has been looking very sad for a while. the main problem is that the leaves are ...
3
votes
1answer
72 views

Lucky Bamboo stem sags but seems healthy, how do I fix this?

I've had this Lucky Bamboo plant for almost 4 years. It has got two shoots coming out of the main stem, the longer of which is now unable to support itself. We had a very dry winter and I had a hard ...
3
votes
2answers
88 views

Dealing with mealy bug infestation on jades

I have a couple of jade and dwarf jades on my windowsill, and I think they've been infested with mealy bugs - I had an infestation about a year ago, on a different plant, and I think it spread to the ...
3
votes
1answer
120 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
856 views

Why is my bonsai losing brown/yellow leaves and developing white dots

I was recently given this beautiful bonsai and I water until the soil is moist nearly every day. But recently it has started dropping leaves and these little white dots are appearing. Why is this ...
2
votes
1answer
76 views

The benefits of coir for pot plants?

I recently bought coir for my pot plants, after I saw many other pot plants (in the garden centre) containing a handful. I would like to know the benefits for pot plants if you add coir above the ...
11
votes
6answers
4k views

Why do my newly planted arborvitae keep dying?

I planted arborvitae a year ago that died (five total). I replanted all of them (new trees) this year and three of them are now dying again. Soil Conditions The dirt up here is practically just ...
5
votes
1answer
329 views

Do porch lights affect how grass grows?

If I leave a light on at night, does this help or hurt the grass? No particular kind of grass, just grass. I'm using CFL light bulbs.
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
2answers
417 views

What is acid soil?

Everyone talks about acid soil, but what does it mean when someone says my soil is acid? How does soil get that way? Is it a good thing? Is it a bad thing?
1
vote
1answer
684 views

Does soap mixed with water kill plants?? [duplicate]

I'm doing a science fair project for 8th grade and I'm trying to decide my hypothesis but I'm oblivious .
7
votes
2answers
6k views

Should I use aluminum sulfate (sulphate) to acidify my soil?

It is often recommended online or by nurseries to apply aluminum sulfate to plants like blueberries, rhododendrons, azaleas and to hydrangeas to make the flowers blue. Is this advice I should follow? ...
3
votes
1answer
48 views

Yellowing leaves on some hibiscus plants

We moved into a new house in SW FL (the Cape Coral area) a couple of months ago, and the front was landscaped with 5 hibiscus plants. All of them are flowering nicely (a nice, fuchsia color), but 2 of ...
5
votes
2answers
200 views

Do I need to leave space at the base of a plant so that air can get into the soil?

I have heard this mentioned many times that at the base of a tree or plant you need to leave the surface uncovered so that air can get into the soil. How true is this? The idea is that if you are ...
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 ...
2
votes
1answer
10k views

Why are my chilli pepper leaves curling and new flowers are falling off?

Could you please tell me why my chilli pepper plant leaves are curling. The plant has grown to about 15" tall and has produced some chilli peppers. The peppers are already maturing but new flowers ...
3
votes
1answer
136 views

What is this plant? What is the white stuff on it?

I've had this plant for a long time, and for most of that time it was outdoors, in a shared area with other plants and heavy sun. It didn't do well, so I dug it out and put in it's own pot, with a ...
1
vote
3answers
121 views

Tomato stems mysteriously cut above the fruit

I have good healthy plants with no signs of (obvious) trouble. Fruits are forming, but some fruits on some plants, and there quite a few of them, are mysteriously cut. I don't see similar damage ...
3
votes
1answer
142 views

Cucumber plants are healthy, but wilt badly in hot sun, then recover

If cucumber plants are growing well, wilt very badly in the sun, revive quickly in shade and over night, is the wilting harming them? Their soil tests okay for water. I am in northern California and ...
3
votes
1answer
83 views

How to prune my sad rhododendron?

We've got PJM rhododendrons at our new house in Michigan... a couple of them are absolutely flourishing, but two of the smaller bushes right next to them are not having a good time. Some of the ...
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 ...
5
votes
1answer
169 views

Small tomato plants have purplish stems

I have Parks Whopper Cr Improved Vf1f2nt Hybrid started from seed indoors. The plants have healthy leaves and seem to be growing well, but their stems are rather purple. Is this normal, or the ...
1
vote
1answer
71 views

Should I pinch early pear blossoms to encourage stronger tree and better season?

I have a young pear tree that has several varieties of pears grafted on it. It is starting to blossom. Should I pinch these early blossoms? Will the tree divert resources to making more leaves and ...
2
votes
1answer
89 views

Lilium flower withering

I've just recently (2013.03.08) bought a lilium and an orchid plant from a big hardware/gardening chain store. The day after, I watered them early in the morning with room temperature water ...
3
votes
1answer
69 views

Brown turkey fig dormancy time

We picked up a brown turkey fig tree last summer. We plan in keeping it in a large pot rather then in the ground. We have a small space and understand they have a good sized root system. Plus we live ...
1
vote
1answer
124 views

Sequoia Browning

I have a small sequoia tree which I got from the San Francisco airport as a seedling. I planted it in January 2012 and it has been growing (slowly) and seemed healthy - it is about a foot tall and is ...
3
votes
1answer
129 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 ...
2
votes
1answer
830 views

Why the leaf tips of my spathiphyllum look burned?

I have a spathiphyllum and I water it 3 times a week. But the leaf tips look like burned. Is that natural or should I do something for it? BTW, how can I make it blossom?
4
votes
1answer
226 views

How long do Nepenthes leaves last without traps

My nepenthes ventricosa x mira has lost two of the four traps it had when it shipped in but the leaves are still living, kinda growing, and are healthy. But I am wondering how long will they last. ...
4
votes
1answer
72 views

I just planted a Paperwhite bulb and I broke the roots. Will it still grow?

I planted it, indoors, about 2 days ago. I rotated it because I thought it was leaning. Then I heard a snap and realized i'd broken the roots. I didn't think roots would have already sprouted :(. Did ...
1
vote
1answer
524 views

How to care for/water Snake's Plant (Mother-In-Law Tongue Plant) indoor potted plant?

I have several indoor potted Snake's plants. One pot has several kinds of plants in it, and is reasonably large - probably 16" diameter. It is filled with Prayer plants, another plant (the name leaves ...
3
votes
1answer
373 views

What are these yellow bugs and should I be worried?

I took a close look at one of my plants, and saw all these tiny yellow bugs. They don't seem to be hurting the plant, but I thought I'd ask to make sure. If it helps, this is in the San Francisco ...
6
votes
1answer
116 views

Potted sweet peas have shot up quicker then expected

Please help i've never grown sweetpeas and wasn't sure what to expect when I chucked the seeds that had started to grow in the packet in with the ones i'd started already and now they have all grown ...
3
votes
2answers
226 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 ...
2
votes
2answers
2k views

White spots on rose leaves

I have a rose. I have noticed that some of the leaves have got white dots and do not look healthy. There are also strings between some of them (similar to spider webs). I also noticed some small flies ...
2
votes
2answers
2k views

Schefflera arboricola , seems to be withering and dying, help!

I am not sure what is wrong, the plant seems to be rotting and withering from the top down. The tag says that it is a bush but it has grown to 5 feet or more in height. I tried trimming back the ...
4
votes
2answers
2k views

Restoring overwatered rosemary

I have several rosemary bushes in the backyard; I live in San Francisco and rosemary thrives here. However, the landlord overwatered one of the bushes for several months. It's now got some kind of ...
5
votes
1answer
621 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.
5
votes
2answers
304 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
3answers
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! > ...
7
votes
1answer
820 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 ...