Questions tagged [algae]

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2
votes
2answers
46 views

UV radiation to kill algae on stone

I have flat stones which create a patio area in my back yard. In between the stone, the small gaps are filled with pebbles. The stones near the edge of my house are shaded through most of the day and ...
3
votes
0answers
109 views

Something unidentifiable grew up in my garden [closed]

In one of the empty plantations from my garden something weird grew up. Can you help identify it? I know I need to remove it soon, but it grew up so big and wide, so I got intrigued. Album is here: ...
16
votes
3answers
3k views

Is this heavy blue-green growth on my tree trunk and branches a form of lichen?

I have a tree with a fairly heavy growth across its trunk and branches; I suspect that it's a form of lichen but I'm not sure. Is this something that will negatively affect the growth or health of ...
3
votes
1answer
946 views

What plants grow in my bathroom? ☣

Today I investigated threads hanging from the ceiling in my bathroom, each ca. 5cm long. They started appearing in the weeks after a recent water damage in an apartment above. At first I thought they ...
6
votes
1answer
839 views

What is killing off my lucky bamboo?

I've been following the general guidelines for taking care of lucky bamboo. Purified water Sunny area, indirect sunlight No fertilizer Indoors (60 to 70 fahrenheit nowadays) They have been slowly ...
4
votes
2answers
78 views

Will green, algae-like blooms in the side of a clear pot cause any damage to the plant and its roots, and if so, how can I get rid of these?

I have had a False Shamrock (Oxalis triangularis) planted in a clear, fishbowl-like container with a handful of gravel for drainage and potting soil to the level of the pot it came in for about a year ...
3
votes
1answer
830 views

How can I prevent algae growing over my patio area?

My house has a patio area outside the back door. The patio borders onto grass and makes a home for a pair of sheds. It doesn't drain well and is always in the shadow of the house, so that it stays ...
3
votes
1answer
130 views

Strange things in my purchased manure / algae / compost-mix - unusable?

Three months ago I bought an (20kg pack) organic compost mix of (horse-)manure/algae/compost. In addition it states "naturally moist". I used some part of it and I put it, loosely closed, in a dry but ...