Useful Weeds

Lots of weeds pop up over winter and into spring. Most are just a problem that needs to be dealt with but some have turned out to be welcome. Among the many problems i've had welcome cos lettuce and  red mustard. I've also had about a million wild rocket plants come up. At first I thought, "wow, what a great plant" but that soon changed to, "Wow, what a pain in the arse.", as they came up in every crack in every paving stone in the garden. At least the cos and mustard were a bit more localised.