Questions & Answers about En el rellano hay una planta pequeña.
In Spain, rellano usually means a landing: the flat space at the top, bottom, or between flights of stairs.
So En el rellano means on the landing or in the hallway landing area, depending on the building.
In some contexts, especially in apartment buildings in Spain, rellano can also refer to the shared space just outside the front doors of the flats on a floor.
Hay means there is / there are and is used to say that something exists somewhere.
So:
You use está when you are talking about the location of something specific or already known:
- La planta está en el rellano. = The plant is on the landing.
A useful contrast:
- Hay una planta... → introduces the plant
- La planta está... → talks about where the plant is