I was wondering the same thing for my next grow.

I was thinking about 2 23 watt cfls' for each mother. To me this seems like enough lighting to maintain a mother. Assuming you are taking clones about once every 6-8 weeks.

However I've never kept a mother so I'll be anxiously awaiting for someone else to chime in. I need a definitive answer for myself as well.
daihashi Reviewed by daihashi on . How much light is just enough for a mother plant? Hi all, can anyone advise me how much light is the minimum required for a mother plant to grow well? Can I keep it with my unrooted clones under 2x60W CFL or she needs more light? Thanks. Rating: 5