I bought some small curly parsley plants last year and never got around to planting them out. I put them in supermarket veg trays with drainage and left them on a south-facing but cold windowsill.
They never really thrived, and the windowsill was covered in little tiny flies/aphids. They died back in September and then a couple of the plants have grown the odd new stem, but some of them appear to have been eaten or cut off. So:
1) Should I have expected them to grow back or do they need to be replaced each year?
2) What could be damaging the new ones? No obvious sign of flies/spiders now.
Thanks for any help.