Brassicas will fail if the soil is too acidic ... to attack by the caterpillars of the cabbage white butterfly. Try covering crops with a crop protection mesh. It keeps the butterflies out ...

Vegetables like carrots, parsnips, and brassicas are best sown outdoors, whereas crops such as aubergines, tomatoes, melons, and cucumbers should be kept under cover throughout the season.

Brassica vegetables, such as broccoli and turnips ... One option is to prepare the soil as usual, then cover it with a weed control fabric and plant seedlings through it. Use stakes or water ...