“Phenology,” is a word describing a connection between climate triggered biological phenomena. It can be used to help you time plantings in the garden. Although it is not perfect, you can use around here with generally good results.
Here are some examples:
• When daffodils bloom, it is time to plant peas.
• When apple blossoms fall it is time to plant corn.
• Plant corn when oak leaves are the size of a squirrels’ ear.
• Plant peppers and eggplant outside when bearded iris is in bloom.
• When dandelions first bloom, plant beets and carrot seed.
• When elm leaves are the size of a penny, plant beans.
• Tomatoes can be set out when lily-of-the-valley is in full bloom.