Can I make a seed/seedling last 3 weeks without tending to it?

Just wondering because I'm going away for 3 weeks and it would be awesome to have some new seedlings growing when I get back.

I was thinking of using a fairly big plant pot and thoroughly watering the soil and then just place the seed with taproot in there. I'm hoping a big pot will have enough water for 3 weeks of growth. Thinking of also leaving a few glasses of water in my grow tent to keep it humid.

I'm planning to veg under 2 45W blue spectrum CFL's, how far away from the soil should I place them?

Has anyone tried this before? I think I have a fair chance of pulling it off unless anyone can tell me that it's definitely not feasible.

The air will leave the water in the pot leaving your seedlings waterlogged. Typically plants need to be watered every 3-4 days... You are talking 5 to 7 TIMES that.

I dont think you can do it without watering in between or have some mechanical method.

i recommend making a mechanical method or going hydro.

Yaaaldi said:

I'm planning to veg under 2 45W blue spectrum CFL's, how far away from the soil should I place them?

Click to expand...

i had to leave some seedlings (barely past cotyledon phase) alone for 5 days recently when i went away for thanksgiving. the problem is partly water but also lights. a seedling will grow enough in 3 weeks to make this near impossible. if you leave it fairly far from the soil to try to avoid evaporation, it will stretch and possibly fall over. if you leave it close enough to avoid stretching you risk the seedling growing into the light.

my only idea would be a wick and reservoir system. i'm sure you can look it up, but it is basically a bucket of water connected to the seedling's pot with some sort of a material that wicks water. i have never used one but imagine it might work if you add enough water to the reservoir.

as far as keeping the plants out of the light yet not stretching, perhaps a screen in between the lights and seedlings and the seedlings slightly askew of the light, rather than directly under, could work. the screen has to be fine enough so a seedling can't grow through it yet wide enough to not block out too much light.

seems like too much work for the time saved, but it might be possible...

Maybe in a DWC..

A drip system and a timer will work .. as long as it does not malfunction while you are gone.

umm... maybe you should just wait until you get back. Unless you have great fire insurance coverage.