>>1601973Hydroponic DWC watermelon, final update:
Here it is. Smaller than the average 5-10 lbs for this variety (just under 2.2 lbs), but it's fully ripe with a thin rind and tastes sweet. Grown in a 3-gallon bucket under my desk with two poorly positioned 40W (35W actual) Sansi LED lights. Next time I try this, I'll have a more appropriate setup with a larger reservoir. But I'm happy with the results and glad to have a ton of heirloom seeds to save.
I was inspired by this guy who successfully grew two small watermelons (larger one was about 3 lbs) with only 96W of light:
https://www.youtube.com/watch?v=dGLfqfLdKI4I am also growing one watermelon plant outside but we had a cold spring and everything got a slow start. On top of that, I only recently successfully pollinated the one outside so it's very unlikely the fruit will ripen in time.