Traditionally, parsnips are left growing in the ground over winter to allow time for the frosty winter weather to improve their flavour.  However, parsnips tend to develop canker and become less appetising as they reach old age.  To achieve the healthiest harvest, lift your parsnips now, before decay sets in and store your parsnips in the freezer until you are ready to use them. 

Now is the time to move tender plants under cover.  Make sure that you’ve thoroughly checked your plants (and their pots) for pests, before you re-position them in their new home.  Protect your plants from slugs and snails by smearing a ring of petroleum jelly around your pots to act as a barrier.  Make sure it’s wide enough – a couple of inches should do the trick.