The full beta release of "Growsim" is available for download right here on IndieDB. A web version can be accessed from the main site at growsim.blogspot.com.
All features are complete but still being tested. Further beta releases will include bug fixes, balancing, and minor feature upgrades.
The Free version has a few limitations: no importing or exporting plants, no achievements, and no unlock codes. All other gameplay features are fully available without any time or other restrictions.
The Full version (available soon) unlocks the limits and allows for updates to include additional content.