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.
You may make a partial contribution to a Roth IRA if you are single and your income is between $116,000 and $131,000 or if you are married filing jointly and your income is between $183,000 and $193,000. You canât contribute to a Roth IRA if your income is above those levels. Saving during retirement: You can make contributions to a Roth if you continue to work in retirement as long as you stay within the income limits. 2  Traditional IRAs do not allow contributions after age 70 Â½.