"D. T. Green" wrote in
:

Some mint i got from the supermarket i rooted and planted some in pots
outside. A little later and some of the leaves have turned a dark
reddish coloured brown.

Does this mean they are passed their best for picking and freezing?
Also how is it best to take the leaves off and still keep the plant
alive for next year please?




This is an unusual year IMO, and if I were you I would keep them in pots
permanently because mint can over-run (overrun) your garden and it is
difficult to control. Even in a pot it will put roots down through the
drainage hole unless it is controlled.
I think the red foliage is due to lack of photosynthesis, which I think is
due to lack of sunlight. The mint should recover when we get more sun.

There are different varieties of mint of course, but I would be careful.

Baz