BigBill said:Where did you get the soil that you planted them in? My initial thought was contaminated soil maybe?
Mint is a very aggressive plant and for that reason are difficult to keep maintained.
BigBill said:Miracle Grow for cacti and citrus is not exactly the correct soil. Both of those are for a rapid, quick drain whereas the mint might do better in regular old Miracle Grow potting soil.
But that is not really the issue when you have an odor of burnt diesel and rubber. Those are petroleum products. There is no possible reason that I can think of that would account for that when you are dealing with potting soil and mint plants.
I can't figure it out either.
sumire said:Have you been fertilizing? Many herbs maintain their best scent/flavor when they are not fertilized. Found this out the hard way with my rosemary and basil when they both lost their flavor and smell. No telling what the underlying smell of spearmint is....
Altheabyanothername said: regular potting soil. The only thing I could come up with are you near 635/ LBJ or 75? Heavy traffic odors being absorbed by the plant. I hope you can figure it out.
Good Luck and May your balcony garden bring you much enjoyment!
PlantingOaks said:Do they smell stronger than when you purchased them, or just different?
Noses are funny, it could be that the scent they are producing has gotten so strong that your nose has started reading it as something else entirely.
Just a guess. I'm very curious if someone does have an explanation.