Show PLANTS NEED COLD WEATHER experiments experiment have shown that T hat in northern countries Countr leg a certain amount Is ii essential according to common c CP mon belief cold weather causes plants pla ants to become dormant during tile fall fail i while warm weather the succeeding spring again incites new growth growth intensive I 1 investigations aves of dr frederick V coville bof of the federal department of agriculture which have bare nen been N en conducted over mer a period of ten years and which have covered every phase of tills this subject demonstrate that both oth of these t traditional dit ional theories a arc ie erroneous D dormancy ra in our native nat trees and shrubs begins some time before the start or of cold weather each vinter the appearance of jack fm frost Is not necessary tor for the lie establishment of complete dormancy furthers Fur thern re after such a condition of do dormancy r rap iney has developed exposure of the pl its to the ordinary growing temper atee thereafter does not arouse them tom their lethargy so that they beg begirt growth anew interestingly interesting Inte the coville experiments peri perl ments show ahat hat plants which have ailed td id the inre of autumnal and winter dormancy will not react properly pru perly aird resume normal growth the fol loIns spring aprin unless they are the interim to n period of 1 hilling A certain amount of cold I 1 essential e to stimulating the L plant plan growth scientific american ln I 1 |