Gardening and Landscaping Stack Exchange
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Questions tagged [mold]

Questions about mold and fungus growth

Mold (or mould in non-American English) is a common name for a kind of fungus that typically appears in damp conditions.

Mold on plants is usually indicative of over-damp conditions, and will typically result in a sick or dead plant.

Use this tag for questions about identifying, avoiding, and curing mold on plants.

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Unidentified mold on garlic cloves

I found this mold growing on two of my garlic cloves today. I have planted the garlic in a pot indoors at least two weeks ago with two others. I water it only when I think the soil feels dry, the ventilation is not ideal, and the cloves seemed…
Erbium
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Why is the new soil building mold?

Four weeks ago, I bought a bag of soil with the label “For In-Door Plants”. However, I noticed the formation of mold very quickly after I used it: Is it the soil? The watering? Or something else I am doing wrong?
user2536125
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What is this yellow mold or fungus in my container?

I found this yellow looking patch underneath the branches of my rosemary plant. I did not see it near either of the other 2 plants in the container. I dug the yellow stuff up, it seemed surface level, but the soil underneath where it was seemed very…
Becky
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Most effective way to remove mold from microgreens

I've seen a few ways to remove mold from microgreens, but I'm not sure how to do this exactly to be harmless for my customers. I've read this article and as far as I understand I need to use 35% since this is for food grade. Do you know any others…
Kristian Vasilev
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Moldy looking soil in my greenhouse

I have had moldy looking soil in my greenhouse for the last couple of years. It looks like fine dust on top of the soil. My greenhouse is well ventilated and I have used various fungicides with no results. Anyone got any advice? Thanks
Andreea Popescu
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What is this white furry-looking mold in my potted plants?

Can anyone help me identify the mold growing in two of my potted plants, and how to treat them? I bought the plants and potted them two weeks ago. The flowering plant is in a pot with a drainage hole at the bottom, and the succulent is in a glass…
Eliot G York
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What is this white fungus on my oak tree?

This white material is on my oak tree, and it's appeared within the last month. What is it, how can I treat it, and is it contagious (it's begun to fall from the tall oak tree onto surrounding plants)? I live in Florida. A closeup of the tree, a…
fi12
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Does mold on a seed always mean the death of that seed?

I recently germinated some coffee beans (soaked in water until a root appeared), and planted them in sterilized soil. I only lightly covered them in soil (based on this answer), so the tops of the beans were visible. A mere three days later, a…
John Walthour
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Why is there green mold ? on my ming tree trunk and leaves are wilting and dying?

I have a 40+ year old Ming Tree that has always been very lush and full, however, the leaves are now wilting and dying (they remain green but just wilt and then die). There is also blue/green mold growing on the trunk (the mold is dry and does not…
Lizbet
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Why do I have brown "jelly" and rotten smell inside my healthy looking tomatoes?

I have about 30 tomato plants of several varieties, all hybrid except for one heirloom. Every single tomato plant is having the same issue but my peppers, eggplant, green beans, and cucumbers are fine even though they are planted in the same…
Brad Bramish
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Is there a way to kill the mold on soil surface in pots?

I’ve had mold growing on the surface of my pots for a long while. I kept removing the soil from the surface but that didn’t help. So I went and bought expensive fancy soil!! I took out the plants from the old soil and tried to clear them ip as much…
Neeku
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Orange sponge-like mold growing on mulch - what is it and is it harmful?

There is a mold that looks sponge-like that is growing in various spots on my mulch. It seems to appear very quickly (it seems like overnight but that's probably because I'm not observing daily), and I notice the following life cycle: The mold is a…
SethMMorton
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What type of bonsai is this, and how do I revive it?

I got this bonsai from my friend about 2 months ago. I do not know what type of bonsai it is so I don't know how much about taking care of it. About 6 weeks ago, I forgot to water the tree so it went very dry. I watered it regularly but it seemed to…
Sofie
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Houseplants keep getting infections

Over the past year we've tried to grow several small houseplants in our apartment, but every one of them has succumbed to an infection of some sort. For what it's worth, we keep our house spotless, so it's not like there's (visible) mold growing…
thanby
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Is this white fluff on my indoor grass bad for the plant, people, or pets?

For our cat, we have some grass in flower pots on the windowsill. I don't have the package with the seeds any more, it said something with cat grass. On some of the blades, there is some white fluffy stuff: The soil is flower soil from the…
Martin Ueding
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