App for planting according to signs of nature since due to climate change, planting calendars are nearly useless. Signs of nature such as when migrating birds or insects return, plants leaf out or bloom, drop leaves, etc.
You can find a lot of tips from "old timers" & folk lore for cooler climates i.e. England & New England. But little for warmer climates. Needed for the whole world. The only thing I know of applicable to our area is that pecan trees don't leaf out until they "know" it won't freeze again. ( Although I don't think our urban trees know they live in an urban heat island.)
App for planting according to signs of nature since due to climate change, planting calendars are nearly useless. Signs of nature such as when migrating birds or insects return, plants leaf out or bloom, drop leaves, etc.
You can find a lot of tips from "old timers" & folk lore for cooler climates i.e. England & New England. But little for warmer climates. Needed for the whole world. The only thing I know of applicable to our area is that pecan trees don't leaf out until they "know" it won't freeze again. ( Although I don't think our urban trees know they live in an urban heat island.)
Nature observation data from sites like inaturalist.org and https://www.usanpn.org/natures_notebook Data is shared, downloadable National phenology network https://www.usanpn.org/ downloadable data
The term for this is Phenology
http://nanews.ampers.org/pieces/phenology-plus-22?s=taxonomy&s2=term podcast
http://www.npr.org/2017/03/01/517988120/warmer-temperatures-signal-early-start-to-spring-weather All things considered interview
Urban heat island effect on phenology http://iopscience.iop.org/article/10.1088/1748-9326/11/5/054023
A tale of two springs: using recent climate anomalies to characterize the sensitivity of temperate forest phenology to climate change http://iopscience.iop.org/article/10.1088/1748-9326/9/5/054006
Spring plant phenology and false springs in the conterminous US during the 21st century http://iopscience.iop.org/article/10.1088/1748-9326/10/10/104008 - & many more papers.
https://portal.nifa.usda.gov/web/crisprojectpages/1003575-plant-phenology-predictions-for-weather-related-risk-management-in-major-fruit-vegetable-and-food-crops.html
Phenology in Agriculture https://link.springer.com/chapter/10.1007%2F978-3-642-51863-8_31
Several examples for cooler climates - crocuses, peonies, etc Things that don't grow here. http://www.almanac.com/blog/gardening-blog/follow-natures-signs http://www.almanac.com/gardening/seed-starting-dates/TX/Houston
Another article, applicable to northern climes -lilacs, forsythia, etc http://fifthseasongardening.com/phenology-gardening-by-natures-indicators
http://www.birdsoutsidemywindow.org/category/series/phenology/
https://empressofdirt.net/garden-phenology/ some videos, examples (for cold climates) ideas of what to look for
There are apparently some southern experts, though:
https://www.usanpn.org/fws/GulfCoastPhenologyTrail
Phenology hike at arboretum http://www.getoutherehouston.org/activities/phenology-hike-arboretum-2017-03-11
http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1034&context=napcproceedings UT Pan-american study Padre Island
Mississipi http://ms.audubon.org/events/citizen-science-saturday-natures-notebook-and-phenology
related http://bigbughunt.com/ http://www.robertkourik.com/drip_irrigation_garden_books.html - bloom times for insect gardens
botony & more https://www.usanpn.org/educate/nn_curriculum