I live in Toronto and I have unsuccessfully tried to grow an indoor herb garden twice.
The seeds sprout, but then once they hit the height of the pot(s) they stop growing and then eventually start to wither and die.
I don’t know what I could be doing wrong. I tried using two different soils, watering them more or less for a few days at a time to see if they improved, moved them to a different window (southwest vs northeast).
Any help on what could be causing them to die on me would be extremely helpful and I would be beyond grateful.
Indoor herb gardens are really challenging. Most herbs required at 6-8 hours of direct sunlight and the light levels in our homes just can’t equal that. Even in a south-facing window, you may need supplemental lighting.
Water is the next important factor. Herb plants do not like to be in wet soil. Make sure that your container drains well and do not let it sit in a sauce of water. Water thoroughly and then let the soil dry out before you water again. (Stick your finger in the soil to determine the moisture content.)
The herbs that are most successfully grown indoors are bay trees (buy a small plant and grow it on), chives, mint, and lemongrass (this doesn’t even need to be in soil; just keep a stalk in a glass of water and it will send out shoots). Parsley can also be grown indoors but it is not very productive, so you may not find it worthwhile. Dill is especially difficult to grow.
In summary, check your watering regimen and available light. And consider growing plants that are happier in indoor conditions.