Do you have a question?

Do you have a question about the grow kit? First, check the frequently asked questions here . Is your grow kit problem not listed? Send us an email at info@rotterzwam.nl .

We can provide you with information more effectively by email than by phone. For example, by sending you a link to a video explaining your specific problem.

Do you have a question about our products or services? You can reach us at 010-7511460 or by email at info@rotterzwam.nl

Online interview

Would you like to interview someone from Rotterzwam for a research project or thesis? Book an online interview now.