Eureka!

I planted this lemon in 2009.  Having had previous experience with the large, sharp thorns on a Lisbon lemon I chose a Eureka this time.  We've had 2 or 3 lemons from it in the last couple of years but this year it seems to be coming into more bountiful fruit production with up to a dozen fruits, not yet ripe but getting there.  The yellowing leaves, though, indicate that the tree needs some feeding and the colder weather, which locks up soil nitrogen, is probably a factor too.