Homegrown Spices in Bloodhelm

Spices are a big deal in Medieval times (personally I won't cook without them in this day and age) and thus were worth a lot of money.  On my world, spices will travel long distances and cost lots of money, so Homegrown Spices tries hard to grow spices from around the world right in Bloodhelm.  Tandy and Garrett Spice have small "greenhouses" on the second floor of their building.  They've modified the roof so they have the ability to build it back up when the weather gets too cold and warm the inside with magic.  Because of this they can grow small quantities of rare spices from around the world.  Mostly the manor of Bloodhelm and other minor nobles buy the spices, but sometimes the merchant class can afford such things.  They don't live at the building and don't hire guards.  They do have magic locks upon the doors and window, though.