_std/defines/hydroponics.dm

HYP_GROWTH_DEAD	dead/no plant
HYP_GROWTH_PLANTED	freshly planted
HYP_GROWTH_GROWING	second growthstage, not fully matured, but on the way there
HYP_GROWTH_MATURED	matured, but not harvestable right now
HYP_GROWTH_HARVESTABLE	completely harvestable plant

Define Details

dead/no plant

second growthstage, not fully matured, but on the way there

completely harvestable plant

matured, but not harvestable right now

freshly planted