Relative humidity: 30 to 45 percent. “If you live somewhere humid, you’re probably going to want to buy a dehumidifier,” said Lipton. “In Boulder, we sometimes have to add humidity.” At home, that can be done with a reliable humidifier.
Even with a healthy clone, however, cultivating cannabis can be a long and arduous process — especially in tight indoor spaces. “A lot of people think growing is easy, but it’s not,” Lipton said. “You have to be really on it. Not everyone has success, obviously.”
Find a healthy clone.
Though the 12-hour interval is fairly universal, knowing exactly when to induce flowering is less clear. For the home grower, it usually comes down to space; the longer one waits to trigger the flowering cycle, the taller their plant will be. A good rule of thumb: cannabis will only continue to grow 30 to 50 percent once the light source is reduced. If the plant is growing in a closet, growers should trigger the flowering cycle, understanding that there must be more than two feet of space between the canopy of the plant throughout the entirety of its life.
Another layer to consider is that cannabis cultivation must happen “out of plain sight.” “You can’t have any odor. If it’s offending people in the neighborhood, then it’s an issue.”
Know the law.
pH of Water: 6.3 to 6.7. “You’ll need a meter that you can stick into your water and tell you the pH,” Lipton said. “You want something between 6.3 to 6.7 pH for watering your plants. That sounds like pretty sophisticated stuff but it’s really not. A lot of times your tap water will be 7.8. You can use what they call pH down. That’s a crucial step.”
In addition to the pretrial defenses and trial defenses that can be raised in any criminal case, common defenses to the crime of Cultivation of Cannabis are:
However, possession of 25 or more cannabis plants constitutes prima facie evidence that the cannabis is intended for sale or distribution of cannabis.
Defenses to Cultivation of Cannabis
It is an affirmative defense to the crime of Cultivation of Cannabis if you can prove that you did not know the plants you were growing were cannabis plants. Because knowledge is an affirmative defense, you would be required to testify a lack of knowledge of the substance’s illegal nature. 
Cultivation of Cannabis is assigned a Level 3 offense severity ranking under Florida’s Criminal Punishment Code and a judge may sentence a person convicted of Cultivation of Cannabis to probation, but may also impose a sentence up to the statutory maximum.
Penalties for Cultivation of Cannabis
If the cannabis was found in a place where more than one person had access, the prosecutor would have to comply with the law of constructive possession, which requires the prosecutor to prove the following two elements to convict a person of Cultivation of Cannabis: