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.
While frost is not likely to kill a healthy, mature lemon tree it can certainly inflict damage when temperatures drop below 29 degrees Fahrenheit for longer than 30 minutes. Winter hardy to U.S. Department of Agriculture plant hardiness zones 8b through 11, citrus varieties vary in their tolerance to the cold.