Parsnip

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Location
Parsnips can be grown in a wide variety of situations, from open ground to raised beds to containers. The main thing to bear in mind is that they will need a clear 'root run' - if the root encounters stones or compacted earth on the way down, it is likely to 'fork' (split and grow around the obstruction) or twist. If you have stony soil, a good way round the problem is to make a hole using a pole or bar and fill with sand, compost or a mixture of both, sowing the seed on top. Alternatively, deep containers may be utilised, again filled with a sand/compost mixture.

Parsnips, like other root vegetables will do best in a sunny location.

Troubles
Parsnips can be prone to 'canker'. This does not usually render the roots inedible, but can be avoided by growing a resistant variety, or, growing in a sterile soil/compost/sand mixture in deep containers. This is usually the preferred choice for exhibition growers who require long, clean roots.

Carrot root fly also occasionally attack parsnips. To avoid this either grow away from carrots, or, under your usual carrot-fly protection regime - Enviromesh or horticultural fleece has proved effective for many.

Varieties
Gladiator

Avon Resister

White Gem