A review of the import of brassica seed is a threat to small farmers, seed suppliers and our nation's food sovereignty, says Justin Russell.

Volatile oils in the leaves give salvias their scent and flavour explains Penny Woodward.

In organic circles, lawns are oft seen as unsustainable. But it's possible to grow one organically, says JUSTIN RUSSELL.

Although winter is not normally associated with salads, it's a great time for growing leafy greens, says PENNY WOODWARD