Plant organ used for photosynthesis

learn more… | top users | synonyms

8
votes
2answers
386 views

What should I do with leaves skimmed out of a pool?

We moved into a house with a large in-ground pool, and have been learning to maintain it (I'm a yard-work newbie). We skim leaves and twigs out every few days, and some days there is rather a lot of ...
4
votes
1answer
1k views

Leaves at the tip on new branches of my cherry-trees are wrinkled

On my cherry-trees I observed that the leaves of the tips of newly grown branches are wrinkled and inside there is something which simply said looks like black dirt. The leaves do not look damaged, ...
7
votes
2answers
3k views

What are those red dots on the leaf stems of my cherry trees?

While inspecting another problem I observed that most of the leaves are having two red dots (or very small bulbs, maybe cocoons) at the stems of their leaves: it is something harmful or even a pest? ...
2
votes
1answer
81 views

French Bean Cobra got scorched by sun?

Took my bean outside recently and it was just fine for last 2 days when suddenly yesterday 4 or 5 leave got their tips dried out. It is in pot on North facing wall so wonder if that might be due to ...
7
votes
1answer
2k views

Why are the leaves on my chilli plant turning 'silver'?

The leaves on my chilli plant have recently started turning silver, (as below), they also become thinner and have an 'elasticy' quality to them. Any idea what is causing this? Factors to consider: ...
6
votes
1answer
724 views

What is the best way to hide daffodil leaves after the flowers die?

I have an old flower bed in which the large daffodil clumps bloom spectacularly each spring, but after the flowers fade, the leaves grow some and last for a couple of months before they also die. ...
13
votes
4answers
7k views

How should a lemon tree with yellowing leaves, peeling bark, and small fruit be saved?

Our lovely lemon tree is in trouble... We live in Northern California. Starting mid-last summer our tree began yellowing. We've called an arborist out to the house but the advice has been pretty ...
6
votes
1answer
57 views

How do I control blight in lantanas?

All my Lantanas have this blight on their leaves. What is causing it and how can I cure it?
8
votes
2answers
597 views

What is the problem/disease that causes bobbly peach tree leaves?

What is the likely cause of the bobbly forms on the leaves of a peach tree? Does it matter or is it just some natural anomaly that doesn't affect the tree's health? If is it a concern how can it be ...
10
votes
2answers
4k views

Will leaving fallen leaves on the lawn during winter damage the grass?

I have a lot of leaves on my lawn (in Oklahoma). Will it hurt the grass if I leave the leaves there over the winter?
10
votes
2answers
2k views

Why are my squash's leaves drooping?

This past growing season (2011) I was growing squash. Often I would find that the leaves had drooped (lost rigidity). Watering the plant seemed to help; but I'm not sure if there is a causal link ...
9
votes
1answer
2k views

Are the yellow leaves on my Massangeana due to root rot?

I bought my Massangeana (Dracaena fragens) 15 months ago, and he's be doing really well. Started off with a few burnt ends, but I switched to filtered water and he was good again. In the last couple ...
6
votes
2answers
8k views

Why does my blueberry bush have brown/scorched leaves?

I recently purchased a dwarf Northsky blueberry bush from a mail order company. When I recieved it, roughly 15-20% of its leaves had the appearance of being burned or scorched; the bad leaves were ...
10
votes
1answer
964 views

How to treat a succulent with holes in its leaves?

I have a succulent plant that got some disease and is covered with holes. The holes started to appear a month ago. At first they were green (like something was eating it), probably growing and then ...
4
votes
2answers
297 views

What is causing a white rash to appear on the leaves of Pedilanthus tithymaloides?

My Lightning Bamboo Green (Pedilanthus tithymaloides, also called Euphorbia tithymaloides) feels well at my home; he already has a sprout. So I can't explain what the white rash on the leaves are. It ...
9
votes
1answer
440 views

What causes spruce branches to drop their needles?

I have a spruce tree that has a problem. Every year, some branches suddenly drop all of their green needles and die. I would like to prevent this, but I don't know what the cause is. What causes this ...
3
votes
1answer
353 views

Why did my grape hyacinths put out leaves in the fall?

Normally my grape hyacinth only puts out leaves in the spring, but this year they all are vigorously growing leaves in the fall. Why do they do that? Is it diagnostic of a problem?
5
votes
1answer
513 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 ...
9
votes
1answer
2k views

Why does my pepper plant have yellowing, drying and curling leaves?

One of my pepper plants has so far suffered from pests, blossom end rot and odd skin blemishes and unfortunately the plant is now taking a turn for the worse and looking rather unhealthy. The leaves ...
6
votes
1answer
986 views

What are these red spots on the leaves of my boysenberry plant?

Previously, I had issues with the sun scorching the leaves of my berry plants. Now that the heat has cooled down, those leaves are back to normal. However, a lot of the leaves on my boysenberry plant ...
5
votes
3answers
924 views

Cherry sapling has wilted leaves, dried trunk; is it dying?

I've posted earlier about my diseased cherry seedling. Since then, all the leaves have wilted and curled to some amount and the trunk of the seedling itself looks like a dried stick. Is this ...
10
votes
1answer
372 views

What is this anomalous growth on my oak leaf?

I found an interesting lesion on an oak leaf in my back yard (Upstate South Carolina). What is it? I am asking about the marble like structure since I am fairly certain that the larva (shown at link) ...
8
votes
1answer
1k views

How can I help a sunburned jade tree recover?

I put my jade tree out to get some sun yesterday, and apparently the sun was a little too blazingly direct. Instead of the healthy red edges I was expecting to see, several of the leaves are now ...
9
votes
1answer
570 views

How do I prevent my berry leaves from getting scorched in the sun?

Raspberries are plants that require good exposure to sun. However, my black-raspberry plant has been getting scorched of late. Typical signs of sun-scorching are when the older leaves start drying out ...
7
votes
1answer
1k views

Should you trim off half yellowed leaves on an indoor plant?

My mum has a plant (Aglaonema modestum) which she doesn't quite take care of, and it is messy with dead leaves and half yellow, half green leaves. I find them very ugly and want to trim them off. The ...
7
votes
2answers
1k views

A few leaves on my peppers are showing multiple small holes, should I be worried?

I've noticed that a small number of the leaves on my pepper plants are showing several tiny holes through their surface. These are focused towards the stem of the leaf, and not so much towards the ...
6
votes
1answer
389 views

What should I do with a leaf that was almost torn in half?

I'm growing pepper plants on my window sills, and yesterday had a minor incident. While reaching over one of the plants in the bathroom, to close the window above it, my foot slipped and I caught ...
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 ...
13
votes
6answers
5k views

What can you do with oak leaves within a garden? Are they compostable?

We have a lot of oak trees on our property. Is there anything we can do with the oak leaves? They never really seem to break down, and because of that, I am afraid to try and add them to a compost. ...
16
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, ...