Broccoli/Cauliflower 'Romanesco' Seeds 300 Broccoli/Cauliflower 'Romanesco' Seeds £2.00 Out of stock. Broccoli/Cauliflower 'Romanesco' - Pack of 300 SeedsBrassica oleracea Sow: March to MayHarvest: August to NovemberHeight: 50cm+Add a little something different to your veg beds! Not quite a Broccoli and not quite a Cauliflower - tastes and looks amazing! Sowing instructions: Start in Jiffy 7C pellets (available here) or seed trays, then pot on into 7cm pots, and again into 9cm before planting out in late spring/early summer. Seeds germinate in 7-14 days.Growing instructions:Allow at least 60cm between plants. Brassicas are hungry so add a good mulch of compost or manure when planting out and then feed regularly during the growing season.Protect the plants with netting to deter butterflies from laying eggs on the underside of the leaves.