genetics sex is inbeaded in dna and rna although females plants still have dormant male traits within that take over if environmental stress occurs to an excess level and as far as when can u flower u can flower from day one but u wont yield anything usefull when u flower is dependant on how much growspace you have tomatoe plants tend to double-tripple size once flower is induced some even quadrupple(dependant on strain and growing technique) so say u have 6 feet of growing space from top to bottom i'd say flower at or around 2 feet tall growing techniques differ upon grow space hense LST grows SCROG grows SOG grows ect..ect.. hope this helps best of luck
BkSkillz Reviewed by BkSkillz on . Sexing Questions I pretty well know how to sex mj plants from seed. But, at what age or size should you start sexing your seedlings in the 12/12? Can sexing them too early cause high rate of males or is this disposition already programmed in the genetics? Thanks all:thumbsup: Rating: 5