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.
Contributions don't affect other accounts. Contributions that you make to an employee's SEP IRA don't affect his or her ability to contribute to another IRA account. Employees who also work for another business where they have a separate retirement account can still have a SEP IRA with your company.igher limits. A SIMPLE IRA offers higher contribution limits than a traditional or Roth IRA. In 2013, employees can contribute up to $12,000 to their account, plus a $2,500 catch-up contribution for employees older than 50.