The temperature in your grow room is very important for the photosynthesis of your marijuana plants. For example, low temperatures reduces evaporation through the leaves. The result is that the suction force, which takes up nutrients via the roots, becomes smaller.
Yes, you can make contributions to your IRA, subject to the IRS annual contribution limits ($5,500 for the 2015 tax year, $6,500 if you're age 50 or older). But you must keep Roth IRA and traditional IRA money separate.
...but your total contributions to all over your IRAs can not exceed $5000 ($6000 if 50+ years old). For example: You can put $3000 in a Roth and $2000 in a Traditional. Edit: As you are over 50, you can contribute $6000 in total to all of your IRAs.You can not contribute $6000 each to both the Roth and the Traditional.or example, if you can contribute $5000 to an IRA (without contributing to a Roth IRA) and you can contribute $5000 to a Roth IRA (without contributing to a traditional IRA), then you can contribute $2500 to each, or $2000 to each, or $2000 to one and $3000 to the other, but you cannot contribute $5000 to each.