Autoflower Showdown: Which Autos Grow Fastest—and Which Grow Biggest?
For homegrowers who want speed… or size… and need to know exactly which genetics deliver. Autoflowers have come a long way from their early days as small, low-yielding, “beginner-only” plants. Today’s autos are powerful, high-producing genetics capable of rivaling the quality and potency of many photoperiod strains. But every grower eventually faces one big question: Do you want the fastest grow… or the biggest plant? Because with autoflowers, those two traits rarely come packaged together. This guide puts the most popular autos head-to-head—so you know exactly which strains race to harvest, and which ones bulk up like champions if you give them time, training, and space. Understanding Speed vs. Size in Autoflowers Before comparing strains, it’s important to understand what drives their performance: Fast Autos Tend To: Finish in 55–70 days from seed Stay shorter (18–30 inches tall) Focus energy on flower production rather than long vegetative growth Thrive in tight spaces...
