Putting clay pebbles on the bottoms does nothing bedside creating water retention over them; I also did that for may years but i saw a positive change when I stopped! Regular compost is usually too dense as a substrate try to mix it with some perilte to increase water drainage! Hope this was useful to you!

I recommend Sheffield made plants youtube channel, it is really enlightening!

Thank you so much!

Can someone explain please?

That's a Succisa pratensis

For image hosting i suggest https://postimages.org/

Is anyone experiencing problems on the app signing in with a lemmy.world account?

They are not easy to get rid off! Be prepared to take drastic decisions before they spread... I hate those little guys