Is there a restriction on how many herbs can grow on a given level?

[Blasphemous]

I had this situation: I demolished walls in UD:8 and basically made a new big room out of it. It was convenient in terms of access, plenty of already existing stable herb patches and an altar.

I made around 10 square patches via the cross pattern, but the last one remained at the square-without-one-corner stage and did not grow.

When I collected one corner of a different square, that square did not grow but the previous one did, as if there was a limit of how many squares could sustain herb reproduction on a given level.
Has anybody encountered that problem? I realize having 10 different patches was a bit of an overkill as I got all the useful herbs covered, but still, I wanted to turn this level into a lush garden, maybe wish for some animated trees and giant boars roaming the new forest in the future, bring in some logs and huge rocks, stuff like that.

[JellySlayer]

I've never heard of this before. I've seen some people build very large farms in the Big Room before...

[Blasphemous]

I will try to replicate this in similar conditions that I had back then and see if can get the same results.

[anon123]

If there is a cap on how many herb bushes can reside on a level (did you try pouring holy water or planting a seed to check what happens?), then that's news to me. It does make sense considering the capabilities of computer hardware at the time herbs were added to the game.

[Blasphemous]

No, I haven't used holy water, I will do that if I encounter this behavior again. The idea was to conserve holy water and get as many stable patches as I could, all grown from a single + pattern.

[asdf]

Maybe there was a door on this square before you made it into the garden, and herbs wont grow because of it?

[Carter]

there is no cap i'm aware of, i was able to have almost the entire of dwarftown covered in herbs with no problems with growth.

[Blasphemous]

It's possible indeed there was a door there, like in many other places on the level. Yeah, that would explain it.

[Blasphemous]

I have it confirmed - I've found a dungeon with herbs and decided to grow a 2x2 square over a single spot where door used to be.
It doesn't grow there, similarly to w command stopping when character steps over a square that used to have a door.