how to take care of my gerbera and how to grow an african violet from a leaf

how to take care of my gerbera and how to grow an african violet from a leaf

Hello guys& girls, I am new to this community and would like to have your advice about these 2 issues.
I have recently bought a gerbera which I keep it in my office. I would like to know what is best for it, so that it thrives. I put it close to the window so it gets a lot of light.
The second question I have is about African violet. A friend of mine has an African violet. She gave me one leaf which I put into water, but no roots came out yet. Do I need to change the water or what do I have to do to make sure the roots come out well and it grows into a plant.
Thank you.

Destroyed door

Destroyed door

Secret Garden!

Secret Garden!

Late tomato blight… DAMN IT!

Late tomato blight… DAMN IT!

does anyone know what this bug is?

does anyone know what this bug is?

Ident help please

Ident help please

new at growing

new at growing