When to sow: Feb – March
Spacing: 30 x 30cm
Celeriac tips: Celeriac needs a long season to produce decent-sized roots. If you can start the seeds with heat in February that is ideal, otherwise unheated in March will be fine. Seeds can be sown into large modules or small pots and planted out at final spacing in May. Cover with fleece to protect from cold.
Top tips: do not plant past the crown as the roots will end up ‘bearded’; celeriac is thirsty so water during dry weather.