plant morphology

  • Why Allergy Season Is Getting Longer

    Why Allergy Season Is Getting Longer

    If it seems like allergy season is getting worse every year, you’re probably not imagining it. Scientists who study the timing and movement of pollen have found that allergy seasons really have been getting longer, and potentially more severe.


  • How to Prune Outdoor Evergreens Without Ruining Them

    How to Prune Outdoor Evergreens Without Ruining Them

    For most of the year, deciduous trees get all the attention. To their credit, though, they do put on quite the show: Blossoming in the springtime, providing shade in the summer, and then pulling out all the stops for their final number — having their leaves change colours, and then falling off their branches.