What are "Fast Seeds"

[OldManGrower]

I am the lucky beneficiary of free seeds from twenty20 thanks to bdeegan. However, I don't quite understand their grow cycle. I know they are photo periods that finish quickly but how do you know when to do the flip? How long is the growing cycle? Are they really ready to harvest after 70 days or less?

[DabberDog]

What's the Difference between "Fast" and "Auto-Flowering" Cannabis Strains? | Grow Weed Easy

[Bowhunterwoody]

Hey OldManGrower. Someone will correct me if I'm wrong, but I think these particular seeds from twenty20 were developed outdoors to grow outdoors and I think they were developed to finish 2 or 3 weeks earlier then regular photos to beat the damp late fall. Don't think the veg is shorter. Just the flowering. Also think they were heartier against certain outdoor diseases. At least I hope so.

[Allenpro]

I have grownPhotoperiods, Fast Flowering, and Autos Flowers and I dont notice any difference in the time it takes them to finish from the first sign of flower to the end. So I think its all hype for the impatient growers that will eventually be back here asking why it my plant not done it 8 weeks like advertised. What is the rush?

[bdeegan]

They were designed to finished in late August/early September for outdoor growers. It doesn’t mean that they cannot be run indoors. They are F1 cross of an auto and photo and the results are photos that are more sensitive to the light change and therefor finish earlier. I believe they will flower for 8 weeks indoors. They are not a stable breeding platform but you can clone them. I currently have 2 growing but do not have previous experience with the fast photos. I just topped the two of mine and I am trying to clone.

[bdeegan]

Pulled from T20 website:
” 15. What is Early Ripening vs. Fast Flowering?


Early ripening plants tend to start flowering early in the season and typically ripen in September or early October. Fast flowering varieties ripen quickly but don’t always start flowering early in outdoor gardens. Most early ripening varieties are fast flowering but not all fast flowering varieties are early ripening.”



this is from their seed catalog:

[Bowhunterwoody]

I love growing outdoors and anything that helps finish without losing it to bud rot or WPM is welcome. Never grown them till now and am totally pleased with the growth characteristics. Just outgrowing everything I've grown in a few runs. With the daily rain and 40s for temps for the next week I'm tempted to run them indoors but that's not the plan.

[bdeegan]

💯 on the finish early to help fight against bud rot!