Do Cinderella 99 Fast Version Seeds Flower Automatically?Updated 2 days ago

No — Cinderella 99 Fast Version is not an autoflower strain, but it does flower earlier than regular photoperiods due to its genetic makeup.

🧬 What Is a “Fast Version” Strain?

Fast Version (or Fast Flowering) strains are photoperiod plants — meaning they rely on light cycle changes to initiate flowering — but they’ve been bred with ruderalis genetics to shorten the flowering time without becoming true autoflowers.

• They do not flower automatically like autoflowers.

• They still need a light cycle shift (e.g., from 18/6 to 12/12) to trigger bloom in controlled environments.

• Outdoors, they may begin flowering earlier than expected depending on daylight hours, latitude, and environmental stress.

🌱 Why Did Mine Start Flowering Early?

If your Cinderella 99 Fast plants were placed outdoors early in the season, a few factors may have contributed to early flowering:

• Light hours shorter than optimal for veg (under ~14.5 hours)

• Transplant shock or stress, which can trigger early bloom

• Genetic predisposition to flip sooner than traditional photoperiods

This is not a sign of autoflower genetics, but rather a known trait of fast versions — they’re great for regions with short growing seasons or early fall weather.

So in short: no, your Cinderella 99 Fast plants aren’t autoflowers, but their early flowering is completely normal and part of what makes this strain appealing to outdoor growers looking for quicker harvests.