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

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3
votes
1answer
52 views

How should I control the growth of my umbrella grass?

I have a few clumps of umbrella grass that are getting very overgrown. They are planted at the edge of my court yard (pictures below). I live in Houston TX. This is my first house and I inherited a ...
3
votes
1answer
134 views

How should I care for a new Mimosa tree growing out of an old Mimosa stump?

We lost an old Mimosa to borers and it fell over in a wind storm. This spring it started a new growth out of the cut stump.It looks healthy but is growing RAPIDLY and it does not have much space. We ...
4
votes
2answers
132 views

Should I seal the wounds where limbs were removed on a crape myrtle?

I have a crape myrtle that I attempted to transplant last spring. Unfortunately, it didn't do so well (I damaged more of the roots than I intended), and while it did leaf out last year, after a long ...
3
votes
1answer
44 views

How to secure my orange tree

As you can see in the picture, my Orange tree is developing plenty of beautiful looking oranges. Now, I'd really like to enjoy these oranges as soon as they ripe, so I have a few questions: ...
3
votes
1answer
65 views

Redwood planter - Should I treat it and how?

I just built a nice planter in my garden, and would like to plant some flowers and edible vegetables (i.e. corn, tomatoes and more). Should I treat the wood and how? Let me add a few details: ...
5
votes
1answer
50 views

Should I still continue to plant a potato that turned green?

When potatoes are exposed to the sun they turn green and become toxic. I wanted to try to chit a potato tuber but I'm scared that when it turns green I will end up harvesting green tubers as well.
2
votes
1answer
51 views

What is causing curling leaves on my potted Rosy Glow barberry bushes?

I have a few Rosy Glow Barberries that I bought when they were little. I live in a very hot and humid area, so I put them under 60% shade cloth. Well, they turned green, so that told me that they ...
6
votes
1answer
144 views

What is causing the leaves to develop brownish patches between the veins on my tomato plant?

My tomato plant's leaves are turning brown in some places (photo). Zoom in It seems to affect mostly older leaves, but not all of them, as you can see in the image. It starts with a few small brown ...
4
votes
1answer
126 views

How can I repair an apple espalier that broke off above the first lateral tier?

I have a Fiesta apple tree being trained as an espalier. I snapped the main stem, all growth in fact, above the first tier. The young tree is effectively now a T, a step-over. Will it form new shoots ...
2
votes
1answer
87 views

Will planting Pachysandra terminalis affect existing shrubs?

I'm considering planting Pachysandra terminalis around the base of a few shrub/tree stands, but am concerned it may negatively effect the growth of the existing trees/shrubs. The first area is ...
2
votes
2answers
124 views

Will Arborvitae regrow to their usual shape after being partially eaten by deer?

I planted a bunch of Arborvitae in my yard and last winter the deer ate the bottom portion of 2 or 3 of them. I did some Googling to see if they'd grow back, and while most sources say that they will ...
6
votes
1answer
67 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 ...
5
votes
1answer
317 views

Ginger plant too tall for its own good

My ginger plant is about 33 inches (85cm) tall now, and still plans to get taller. Is this normal? I'm afraid it will fall off and break its stem, and I really don't want to hurt the root down there ...
5
votes
2answers
129 views

What insects killed this red cabbage?

Watering the lettuces, I spotted a Red Cabbage head leaning sideways on the ground. On close inspection, here's what I saw: Three little worm-like bugs having a feast of the bottom of the stalk of ...
3
votes
2answers
58 views

How to protect plants from freezing

Waking at 1 am, I get my shoes on to run out to my greenhouse. I've had a heck of a time getting my garden in this year. I've lost quite a few plants to 'pop' freezes and I'm probably getting ...
2
votes
1answer
101 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
147 views

Can I rejuvenate a very old lilac bush that has regrown from the base?

I have a very old (about 120-125 yrs. old) lilac bush. It was cut almost to the ground 20 years ago. I had been told that this was how to control giant lilacs. It had formerly been 18' high and 25' ...
2
votes
1answer
45 views

Extending Life of Cut Flowers

I was reading this article on Extending the Life of Cut Flowers and had a couple of questions. As was also pointed out on How to keep my roses fresh?, you should cut the stems at an angle under ...
3
votes
2answers
72 views

What's this hole in the Cabbage leaf?

What's this hole I just discovered in the leaf of this otherwise very healthy Cabbage? I've got yellow insect cards nearby, and beneficial nematodes in the soil, which have collectively done wonders ...
2
votes
1answer
206 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
51 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
41 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
207 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 ...
3
votes
1answer
97 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
129 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
83 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
87 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
36 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
57 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
51 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
83 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, ...
4
votes
1answer
193 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
465 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
58 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 ...
9
votes
6answers
2k 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
239 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
81 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
208 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
443 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 .
4
votes
2answers
2k 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? ...
2
votes
1answer
44 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
135 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
70 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
6k 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
125 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
111 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 ...
2
votes
1answer
104 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
68 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 ...
2
votes
2answers
2k 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 ...
4
votes
1answer
136 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 ...