I downloaded the exe version, and it ran fine for me. The browser version never loaded.
I really like this idea! I like the flower breeding mechanic. I think 4 days for the seeds to grow is a bit long for the starter flowers, but other than that you have a good foundation here. Polishing the UI would add a lot to this. The color palette is really dull and is not visually appealing.
I would like to see more flowers and features in the future! Hope there's an update. Good work. :)