Asparagus is a perennial plant that when cared for ... typically after the first frost, before cutting it back, advises Rob.

Set the asparagus crowns about 30–50cm apart ... nitrogen fertiliser to encourage plenty of ferny top growth. In winter, cut down dry yellow fern to just above ground level.

Asparagus has long been ... You will need about an hour to plant 10 crowns. Make a straight trench, 30cm wide by 20cm deep, and then pour soil down the length of the trench to make a 10cm high ...