April 15 is a day of pain for most Americans, but at my house, it’s a day of looking out the window and seeing sex. Although our orange trees create fruit all year round, mid-April is when the oranges get sweet enough to make juice every morning. And mid-April is when our plum and apricot trees show their tiny little green fruits, making their annual journey to summertime lushness. And mid-April is when our bright red tulips come out of the ground and preen, shaming the simpler yellow daffodils that have already come and gone. Mid-April is when the freesia…