Web. Light is on, press + hold light button (the display lights all flash to confirm it's reset), and that is now the start of your 18 hrs ON period. OR Light is off, press + hold light button, and that is now the start of your 6 hrs OFF period. Mercenary-Jane • 2 yr. ago Thaaaank you so much! I've been going crazy. BotJunkie • 2 yr. ago.
Web. On its website, AeroGarden says, "Most plants germinate within 7 to 14 days, are ready for harvesting in 4 to 6 weeks, and will keep producing continuous harvests for up to 6 months and longer." I saw my first sprouts after just three days, when the Durango marigolds peeked out of the top of the seed pods.
Your LED grow lights have a life span of 2 - 5 years, about 3 years on average. There is no need to replace the LED light hood unless individual diodes begin to burn out. There are almost 200 diodes in the Ultra panel, so if 1 or 2 diodes burn out - or even 10 or 20 diodes burn out - your garden will still be receiving plenty of light.