You can tell right away when you walk out the door how hot or cold it is, how windy, shady, moist or dry. You know if your soil is pure sand or hard clay because you’ve dug a few holes in your time. You don’t need a book to tell you these things. So why are the gardening zones described in Sunset Western Gardening book important when you add a new plant to your garden? And why are they so confusing in our area? The USDA Plant Hardiness zone map may tell you where a plant may survive the winter but climate zone maps let you see where that plant will thrive year round.
Each day my windshield is coated with yellow pollen grains from Douglas fir trees. Roadsides are crowded with blooming acacia trees. If you’re an allergy sufferer some plants are worse than others for you. What’s a gardener to do to mitigate scratchy eyes and congestion nearly year round where we live?