Plant organ used for photosynthesis

learn more… | top users | synonyms

8
votes
3answers
173 views

What is this large leaf by a river in Pennsylvania?

This plant is new to me. It's about 3 ft tall, in a well-shaded area on a river bank in Pennsylvania. It's rough to the touch and looks like a huge parsley-type leaf. I've lived in PA for about 16 ...
4
votes
1answer
43 views

Translucent spots on leaves

Recently several of my plants have developed these translucent spots on their leaves. What is causing this? What should I do? [
3
votes
1answer
29 views

Brown spots with yellow on cucumber and tomato plants

Leaves of some my Cucumber and tomatoes plants are browning with yellow frames. also some of the stems of tomato plants appear to have a dark brown rust on them. Is this a fungus?
7
votes
0answers
73 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 ...
5
votes
0answers
25 views

Why are some leaves on my tomato seedlings turning dark and falling off?

I am trying my hand at balcony tomatoes and sowed some in mid March. I already transplanted them once from the seed nursery to small drinking cups of about 200ml. Since they were bending too much ...
3
votes
0answers
16 views

What is causing damage to my okra plant?

What is causing the new leaves of our Ladies' Fingers okra plants to become thin and curl? One of the plants has started to dry at the bottom part of the stem. Location: Kolkata, India.
3
votes
0answers
17 views

Only top leaves left on Euphorbia pulcherrima

Most leaves on my Euphorbia pulcherrima falled down, there are only left on the top of plant. It now looks a bit odd I'd like to ask what to do with it. Can I cut the top (will the top grow if I ...
3
votes
0answers
70 views

Strange brown/dead spots on leaves?

What I have here is a plant which is being affected by something which is making certain spots of its leaves appear to be unhealthy. Does anyone have any idea what's going on? Is this something that ...
3
votes
0answers
109 views

Why has my kiwi plant developed red leaves?

I have grown a kiwi plant which is growing nicely in my office. Recently, some leaves developed a red hue. What is happening here? Do I have to worry?
2
votes
0answers
36 views

Why are the tips of my hardneck garlic plants dying?

I've noticed that the tips of my hard neck garlic leaves are dying, and was wondering if this is normal, or not, because the flower stalk hasn't come up yet. Time:right before summer Location:full ...
1
vote
0answers
19 views

What is causing dark spots on my blueberry plant's leaves?

This is my first year gardening and it is quite exciting watching my plants grow overtime. My question is that my blueberry plants have these dark spots on their leaves. Any idea what they are or ...