A couple of years ago I planted two mints, white peppermint and spearmint, into my herb garden. I planted them in a half barrel sunk into the ground. I loved my peppermint and picked it all the time, but the spearmint was shunned. I like the smell, but I just don’t use it in anything. So the obvious happened - now quit laughing at me - the peppermint couldn’t compete well because I keep cutting it back. The spearmint is taking over. This year it has been so strong, it keeps trying to break its way out of the tub. Some of the ribs from the oak tub are starting to break up under the strain of its assault. The spearmint has to go. But how to kill it? I want to keep the peppermint, or I’d just dig it up. Should I take a cutting of the peppermint and then dig the whole container up or should I just work at ripping out the spearmint each time I’m in the garden?
Well I tried to find the peppermint to transplant some to a pot and could not find one stalk of it left. I’m sure it is there, but hiding under all the spearmint. So I just pulled it all up. I’m going to let it dry on top of the compost before adding it, so I don’t have a mint problem around the compost pile. Mint tends to be very invasive in my garden. My other mint family plant, Lemon Balm, does not tend to be a weed, so it is allowed to run free.