Interactions between medications (drug interactions) fall generally into one of two main categories: 1  pharmacodynamic : Involving the actions of the two interacting drugs. 2  pharmacokinetic : Involving the absorption, distribution, metabolism, and excretion of one or both of the interacting drugs upon the other.
Ideal Temperature Range. The best temperature range for growing a successful lemon tree is between 77 and 86 F. Photosynthesis processes peak at the 86 F. Lemon trees prefer warm weather because it is typically coupled with sunny days for optimum fruit production.
Tips and Warnings. 1  Lemon trees are among the citrus varieties that are most sensitive to cold, so they must be protected when there is a danger of frost. 2  Even the lower desert areas get a few nights of below-freezing temperatures each winter. 3  Young lemon trees are particularly vulnerable to frost damage.