Each February since I retired and began to pursue the good life my house begins to fill with seed trays. This year has been no exception, albeit with a greater degree of organisation and a little more technology as I attempt to learn the lessons from previous years. So each morning for the last four weeks I have done the rounds to check on my gradually enlarging collection of seeds and seedlings. Which needed watering? Which should stay in the propagator or on the heat mats and which should be moved to somewhere cooler? Do I go with what I think is right or what the experts say? And which of the conflicting experts is correct?