The plant was outside sitting in our rock garden to help revive it for about 2 weeks. It revived but now there is this strange growth out of the bottom side holes.
This will be Leucocoprinus birnbaumii. They are harmless to your plants, and beneficial to your soil. They are TOXIC to humans, so do not eat them.
the wall of my house, I'm very worried in case it starts to grow inside walls . Is there some way of killing this fungus please?
Mushrooms grow on decaying wood, so you may need to have your structure evaluated and possibly replace some of the timber. Wood ear mushrooms prefer cool surroundings and usually disappear when the weather heats up.
These articles will give you more information:
https://www.gardeningknowhow.com/ornamental/fungus-lichen/are-wood-ear-mushrooms-edible.htm
https://www.gardeningknowhow.com/ornamental/fungus-lichen/environmental-benefits-of-fungi.htm
Should they be weeded out of the garden? Do they serve any purpose?
Unfortunately, your photos did not come through. I am unable to see the organisms in question. Whether they are harmful or beneficial would depend on what it is.
If they are mushrooms, then pulling them up will, only, spread them. It will take eradicating the entire mycelial web beneath the soil. Unfortunately, since I am unable to see them, I cannot offer much information on the subject.
These collections of articles can offer some, general, information, though:
https://www.gardeningknowhow.com/ornamental/fungus-lichen
https://www.gardeningknowhow.com/edible/vegetables/mushrooms
We had a tree removed and after a period of time mushrooms started growing. I tried to grow grass and it seems impossible. What is the soil lacking?
Those mushrooms are doing their best to repair that soil! Do not remove them, as they are removing the left overs of the tree, the disease that killed it, and the disease that is killing the grass. Removing the mushrooms will further the problem. Mulching the area can facilitate the process, giving the mushrooms more to work with so that they may remove the rest of the contamination in the area.
Should you still choose to eliminate them from your lawn, then this article will help:
https://www.gardeningknowhow.com/lawn-care/lgen/eliminate-mushrooms-in-your-lawn.htm
I am also wondering what if I sust doumped them in my compost pile.
Likely, without storing them in distilled water in cold storage, vacuum sealed... They will not likely survive. If these are a wood-loving species, then likely putting them into a compost pile will kill them, anyway.
What I would do would be to store these plugs, vacuum sealed in a container of distilled water, in your refrigerator until you are ready to use them.
aperbark) and several large camellias.
It appears to be Myxarium nucleatum, which is a species of slime mold. It is commonly found in forested areas and feeds on decaying organic matter. Myxarium nucleatum has a gelatinous appearance and can vary in color, ranging from white to yellow or orange. It typically forms small, cushion-like structures called sporocarps, which contain spores that are released for reproduction. This slime mold plays a role in the decomposition of dead plant material and contributes to nutrient cycling in forest ecosystems. There is no need to treat this, as it is beneficial to your trees. Here is an article that will help you to understand more about jelly fungi:
https://www.gardeningknowhow.com/ornamental/fungus-lichen/jelly-fungi-on-trees.htm
Hi ... Two kinds of mushrooms are showing up in my raised vegetable garden planter's soil. It is likely due to excessive rain and high humidity with little to no sunshine for drying excess water, i.e.; monsoon season in SW New Mexico. I usually have gardens in the ground and adding soil nutrition/supplements. This is a first with a raised planter. I have pictures taken before removing the mushrooms by hand. I am having a difficult time identifying if poisonous and if this affects the plants in the garden which will hopefully still be eatible. The soil is drying out a bit the past day or so, and less than four have popped up ... and have quickly drooped/died on their own. I have attached two photos ... tried to crop to smaller size bitsize for sending as attachments ... and still be able to see what they look like. One is very slight white stem with a black gooey head which basically "melts and drips" down the stem, dying on its own. The other is brownish-tanish dome-like head with a thick stem a bit lighter in color from the dome. I would like to know what kind of mushrooms each are and how to treat the soil to minimize further mushroom growth. I order material to make a green-house cover t control the amount of rain it is susceptible to from this year's moonsoon storms/rainfall. Thank you for a your assistance and helpful suggestions ... RKG
This will be in the genus Coprinus, likely. These pose no harm to your soil or plants and are breaking down organic materials faster than if there were no mushrooms in the area. Most Coprinus are non-toxic, but inedible. Honestly, I would leave them, instead of treating them.