How did the idea of hardiness zones begin? The first map of zones came along in 1960 from the USDA. It was a very basic map that showed only the coldest winter temperatures for various areas. Then in 1967, Canada came up with a map for our country, with areas from 0 to 8, but over the years it has been fine- tuned to include not only minimum temperatures but things like rainfall, winds, and maximum temperatures. Zones also came to be divided into “a” and “b” to make things even more precise.
Gardeners always like to be a little bit daring and try to grow plants that are a challenge for our zone, and sometimes it is possible to do so. We’ve talked about “microclimates”, which are small areas that vary in their conditions from the larger area around them. This can happen for various reasons. A yard that is very sheltered and surrounded by trees to block out the wind could be a microclimate. An area close to a house or garage could be a small microclimate (think of irises or tulips planted close to a house and come up more quickly in the spring than those planted out in the open). A fenced in yard could also be a microclimate as it is protected from wind, and the rays of the sun might bounce off the boards back onto the garden space. An area that is in a slope facing south or east can also be a microclimate as it gets full impact of the sun. Any of these examples of microclimates could be possible areas where we can grow something that is really meant for a warmer zone than our own.
Related Keywords
Yorkton , Saskatchewan , Canada , , District Horticultural Society , Yorkton This Week , யோர்க்டன் , சஸ்காட்செவன் , கனடா , மாவட்டம் தோட்டக்கலை சமூகம் , யோர்க்டன் இது வாரம் ,
comparemela.com © 2020. All Rights Reserved.