In DSM, nicotine dependence is included under the general definition of substance dependence.  The essential feature of Substance Dependence is a cluster of cognitive, behavioral, and physiologic symptoms indicating that the individual continues use of the substance despite significant substance-related problems.
The Best Materials to Cover your Greenhouse. 1  Glass: The traditional greenhouse covering, glass is the preferred material for permanence. 2  Film Plastic: Film plastic is one sixth to one tenth of the cost per square foot of a glass covered structure.
Prepare a container for each chaste tree you wish to grow. Fill 4-inch greenhouse pots with a mixture of 4 parts seed-starting compost and 1 part perlite. Saturate the mixture with water and let the excess drain off for 10 to 15 minutes before sowing.