INDICES FROM MOTHER NATURE are all around and still unfolding. According to the 2022 Farmer’s Almanac, effective phenology for gardening is ultimately a local activity because it relies on local indicators to help gardeners determine when to plant various crops.
For the layman, phenology is the study of cyclical and seasonal natural phenomena in relation to climate, plant and animal life.
Examples of using indicators or phenophases include planting when spring vowels begin to emerge or treating the lawn for crabgrass when forsythia blooms.
Some plants are considered indicator plants, such as maples and lilacs, because they provide a lot of information due to the fact that they grow in many parts of the United States.
Here are some of the lilac and maple indicators featured in this year’s Farmer’s Almanac:
When lilac leaves are the size of a mouse ear, it’s time to plant peas, lettuce and other cool weather crops.
When the purple lilac blooms, grasshopper eggs hatch.
When the lilac is in full bloom, plant beans.
After the lilac flowers fade, it’s time to plant squash and cucumbers.
When the maple leaves begin to unfurl, plant perennials.
When the maple leaves reach their full size, it’s time to sow the morning glories.
Climate change has made phenology studies more valuable than ever, because phenology is so sensitive and dependent on climate change. in phenology affected by climate change.
“Changes in phenology are the fingerprints of climate change,” according to the NPN.