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

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4
votes
1answer
57 views

Is my maple tree in trouble?

Location is Pacific Northwest (15 mi W of Portland, OR) A 2-inch diameter branch broke off my backyard maple tree at the trunk this afternoon. The branch had many healthy-looking leaves and seed "...
1
vote
1answer
41 views

Tiny Yellow spots on Dracaena Refelxa Pleomele. What I am doing wrong?

It's not on all leaves, but, let's say, on 70% of the leaves. Well-drained soil. Medium-bright indirect light. I water it every two days, ~250ml water. It was fine a few days back, but now the leaves ...
4
votes
1answer
39 views

What is this white substance on my queen of the night?

I recently discovered a white substance on my queen of the night Cestrum nocturnum. I don’t know what kind of pathogen it is. Does anyone have any ideas how to deal with this? I would greatly ...
4
votes
1answer
38 views

How to prevent basil leaves from becoming black

The attached photographs show a sick basil leaf (which is turning black) compared to a healthy basil leaf from the same plant. The black leaves need to be trimmed to keep the plant healthy. What can I ...
5
votes
1answer
46 views

What should I do with damaged leaves on my Money Plant?

Some leaves on my money plant, Epipremnum aureum, have been damaged by rats. Should I cut them or leave them? If cutting them is good for the plant, from where should I cut the leaves? Here are ...
3
votes
2answers
168 views

What happens with rosemary if I don't let it hibernate over the winter?

I have a 1 year old rosemary. I read in several (non scientific) articles that I have to put it to 10°C in winter, so it can hibernate (I guess). (Outside it would freeze I think, we sometimes get -15°...
6
votes
2answers
110 views

Nepenthes “Lady Luck” Help

I was wondering if someone could help me with my Nepenthes 'Lady Luck' plant. I ordered it from a dealer off of Amazon a few months ago. I bought it because it was supposed to do well enough inside ...
3
votes
1answer
38 views

Why did the leaves of my pepper plant become partly white after transplanting?

I am growing a scorpion pepper plant and I have an issue. Since transplanting, all of the new growth is white. I used miracle gro potting mix. The seedling was previously in a pot with a different ...
3
votes
2answers
85 views

Is music good for plants? [closed]

I was watching a documentary on plants, and I came across this section that tells about the effect of music on plants. It says that Rock music kills plants while some other type of music encourages ...
0
votes
1answer
86 views

Is there a difference between Aspirin, Tylenol, and Advil when growing tomatoes? [closed]

In this YouTube video people are suggesting planting with Aspirin, but would Advil, and Tylenol do the same thing?
1
vote
2answers
28 views

Cut the iris stem to the rhizome or only as far as the bottom leafs?

I have bearded iris growing at 7,000 feet. I want to see which of the iris will rebloom this season, and when the blooms are finished, to split and propagate the plants. In either case, it's my ...
2
votes
1answer
29 views

Is mold/mildew in the stalks killing my lucky bamboo?

I've got a lucky bamboo with two stalks. One stalk (right to the bottom and left at the top - blue turtle) looks green and healthy, but the most recent leaves started look yellow-ish. The other stalk (...
2
votes
2answers
551 views

Why could this Elephant's Ear be turning yellow?

I have a pretty large elephant's ear, that @Stephie helped me identify some weeks ago in this question. As you can see in one of the pictures there, one of the leaves is already not looking very great....
13
votes
7answers
6k views

Chlorine vs Chloramine: Both harmful?

I've seen a lot of information saying that chlorine can be bad for some plants and the suggestion to let the water sit out for several hours before using it on plants. I rarely see anything about ...
3
votes
1answer
49 views

What is wrong with my Camellia?

What is wrong with my Camellia? It hasn't been looking too happy recently but I just returned from a 2 week holiday and it looks like this (I live in London, uk and it should get sun most of the day)
3
votes
0answers
15 views

black spots near roots and up stems

My beautiful palm tree started showing black spots on the stems near the roots and then further up the stems as time progressed. Some of the leaves have a brown tinge to them. It hasn't stopped ...
3
votes
2answers
42 views

Plant sitting two orchids and need advice

I'm charged with keeping these two orchids alive this summer. Neither look really great right now. The first is a phalaenopsis that was a Christmas gift with beautiful blooms in December. The ...
5
votes
2answers
81 views

Is using detergent on plants a good way to revive them?

A friend said to me: Using a little detergent can help revive a potted (or planted) plant that has not completely died but has been under watered almost to the point of death. I'm dubious; using ...
3
votes
3answers
68 views

Do I need to shade my veggie garden during a heat wave?

We are expected to have 100+ degrees Fahrenheit for the next 3 days. My plants are already looking pretty wilted. They get 12 hours of sunlight, often dry and windy as well. I'm really worried I will ...
4
votes
0answers
59 views

Did I over fertilize my vegetable garden?

I think I over fertilized my raised vegetable garden. A few days after I fertilized, the leaves are starting to go limp and point downwards. Is this what it looks like? And if so, is there any ...
6
votes
1answer
100 views

White spots on large maple tree

I live in the UK and I have a very large maple tree in my garden and just noticed it has white spots on the trunk and some branches. Any idea what it could be and what I can use to cure it? Thanks!
10
votes
3answers
20k 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?
1
vote
1answer
29 views

Black patches on aloe vera leaves

Please tell me if this Aloe Vera leaf is healthy. Most of the leaves are green but there are some leaves with these black patches. Is it safe to consume these leaves raw? For Image, Please click ...
0
votes
0answers
18 views

Cutting back Avocado trees

I am growing an Avocado tree. I was told that the tree needs to be cut back. However, I am afraid of damaging it. My question is whether cutting back is recommended and how do I do this without ...
1
vote
0answers
35 views

What are the pigments in my orchid?

This orchid has been with me for one week. I don't know if she's ok, she has little points on her flowers and her stalk isn't brown at all. I watered the plant the same day I bought her and yesterday. ...
2
votes
1answer
37 views

Is this a fungi on my plant?

I have bought a Kalanchoe and it was healthy when I bought it. I have four more plants with the same problem (all purchased from a place like ikea in Ecuador). I wonder if it is a fungus, and how to ...
2
votes
4answers
1k views

Why did a section of leaves on my Holly bush turn brown?

We have two East Malatka Holly bushes in our flowerbed, which were only planted 5 months ago (they were in 15 gal pots, so already pretty large). They have been doing well, until just the last week ...
7
votes
0answers
116 views

Why are the leaves on my mango tree turning brown and drying out?

I grew a mango tree last summer from seed in a pot. In the beginning it was extremely healthy looking and fast-growing. When the summer was over, as it gets very cold here in Canada, I took it indoors ...
2
votes
1answer
33 views

Why haven't my Birch and London plane tree leafed out yet

In the fall I bought a few trees from Arbor Day. I planted the birch and plane tree on the north side of my house and they haven't budded, bloomed, or leafed yet while my other trees have. I did the ...
7
votes
2answers
121 views

Is it good or bad to have mushrooms growing in the soil of my fruit tree?

As you can see I have mushrooms in my soil. Are they bad? Are they going to cause root rot in my plants? Also, are the mushrooms infectious through the air? It's my testing soil. I plant different ...
11
votes
4answers
21k views

Why has our lucky bamboo turned yellow?

Our lucky bamboo has turned yellow in a very short time, after we've had it for almost 2 years. We've trimmed all yellow leaves, and changed the pebble to clean the green algae - what else can be done?...
3
votes
0answers
36 views

New fungus or mold on my basil plant soil

My husband and I are new to gardening. We bought a basil plant a month or so again, and we've been cutting it and starting new plants. Today woke up to this weird mold or fungus. I can't seem to find ...
6
votes
1answer
87 views

How to straighten an Aloe vera plant?

I have a huge Aloe. I've had it for about 3 years and it was huge before I got it. It just blossomed for the first time. Actually I should say it has a first time bud. All I do is water it and leave ...
5
votes
1answer
146 views

Identify striped bug on plants: safe or suspect?

New to gardening, many species are unknown to me. This one (and many of its friends) with nice metallic colored stripes just apppear on my lavender, rosemary and slightly less on honeysuckle. What ...
6
votes
1answer
79 views

What's this strange large growth on my new asiatic lily?

I had planted some asiatic lilies last year that looked wonderful. They appear to have multiplied, however I noticed an odd growth in one area of my early lily plants. I've attached an in image of ...
3
votes
2answers
80 views

Is my bird of paradise too crowded? Should I divide or repot it?

I have 3 bird of paradise plants in a 16" pot, and I am worried that they are getting too crowded. I water them 1-2 times per week and fertilize about every 3 months using 19-6-12 Osmocote smart-...
6
votes
1answer
102 views

Why is the stem of one of my sunflower seedlings shriveling?

I recently planted some sunflower seedlings and they have been doing fairly well. The only problem I had noticed was that the tips of the leaves were slightly burnt, but even then, the burns weren't ...
6
votes
1answer
38 views

Citrus plant with strong growth but yellowish/lime-green leaves

I know that (generally speaking) yellowish to lime-green leaves combined with slow/weak growth in a plant are an indication of inadequate nitrogen, and one must fertilize accordingly. However, does ...
5
votes
1answer
58 views

Christmas Cactus leaf discoloration

I received this Christmas Cactus as a cutting from a larger plant about a year ago. It has been growing and doing well over that time. In the past month I have noticed some of the end leaves begin to ...
5
votes
2answers
7k views

Why does my Norfolk Island pine tree have brown needles and drooping branches?

My Norfolk Island pine is not doing so well; the needles are turning brown and the branches are drooping. Why did this happen to my plant, and how can I cure it? Click photos for full size
11
votes
5answers
819 views

How long do amaryllis bulbs live?

I've had an amaryllis bulb in a pot for about 5 years now and the bulb hasn't been doing much for, I reckon, over 6 months. When should I consider getting rid of it? Could it have run its course?
7
votes
1answer
58 views

Can I use waste water from kitchen for plants? [duplicate]

Can I use the waste water mixed with dish washing liquid from kitchen for watering my garden?
8
votes
1answer
702 views

Can I cover an evergreen shrub in winter?

I have a small evergreen shrub that gets frost burn in winter. I had been told to use tar paper on it over winter, but I was concerned that since it is a broad-leaved evergreen it might need light in ...
6
votes
1answer
696 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 ...
8
votes
2answers
352 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 they will last. ...
7
votes
1answer
203 views

Rue with white dots and some 3mm white bugs

I have a Rue plant in my terrace, and for many weeks it has had some sort of plague made of white dots and some slightly bigger bugs, oval shape, no more than 3mm long. I've been using an organic ...
5
votes
1answer
97 views

Why are my Japanese Yews (podocarpus) suddenly dying?

I installed five Japanese Yews (Podocarpus) in the fall, November, of last year here in Austin TX. I checked up on them about a month ago and everything was fine. Now the leaves are turning pale/...
7
votes
2answers
1k views

Why is my hosta shrinking?

I have a blue giant hosta. It is in fertile soil and gets plenty of water. I had been dividing it every few years but lately it has started to shrink. I don't want to lose it. How can I get it back? ...
5
votes
2answers
36 views

Tear in alocasia calodora

There's been a slight tear on my indoor alocasia plant and I was wondering if it'll heal? Is there anything I could possibly do to help it?
3
votes
1answer
86 views

Why do my potted plants have stems but no branches?

I have more than 10 plants on my balcony, and almost every one of them has long stems with no branches. We water them every morning, and the sunlight is good. They are like this throughout the year. ...