Plants Are Not Keen On The Cold So Treat Them With Natural ‘anti freeze’ Envii Early Starter Which Acts Like An Inoculation Against The Cold!early Starter Is A Liquid Formulation That Acts Like A Winter Coat For Plants A Bio stimulant That Keeps Plants Warm And Helps Them Repair And Grow On Quickly After Cold Temperatures.it Contains A Sophisticated Combination Of Natural Plant Extracts And Other Nutrients To Change The Plants Natural Reaction To Cold Temperatures Ensuring Continued Growth. In Effect It Reprogrammes The Plant’s Energy To Develop Roots In Cold Temperatures.tests Have Demonstrated That Plants Continue To Grow In Soil Temperatures Between 6 8°c 43 46°f