I was recently playing on a factions server and decided I needed more money. So I began building an underground sugarcane farm. All was fine until about ten minutes later I noticed the sugarcane still hadn't grown at all. I have the sugarcane on dirt and the room is four blocks high. I waited even longer later and still nothing. Why wont this sugarcane grow?

EDIT: Here is a screenshot:

I was recently playing on a factions server, and decided that I needed more money. So I began building an underground sugarcane farm. All was fine until about ten minutes later I noticed the sugarcane still hadn't grown at all. I have the sugarcane on dirt and the room is four blocks high. I waited even longer later and still nothing. Why wont this sugarcane grow?

EDIT: Here is a screenshot:

I was recently playing on a factions server and decided I needed more money. So I began building an underground sugarcane farm. All was fine until about ten minutes later I noticed the sugarcane still hadn't grown at all. I have the sugarcane on dirt and the room is four blocks high. I waited even longer later and still nothing. Why wont this sugarcane grow?

I was recently playing on a factions server and decided I needed more money. So I began building an underground sugarcane farm. All was fine until about ten minutes later I noticed the sugarcane still hadn't grown at all. I have the sugarcane on dirt and the room is four blocks high. I waited even longer later and still nothing. Why wont this sugarcane grow?

EDIT: Here is a screenshot: