Grow Challenge

Grow Challenge Grow Together Grow Along

Let's Grow Together!

You are invited to grow with us! Our grow challenges are open to all growers!

The Spring Auto Flower Challenge begins on April 20, 2021! You can Sign up for the Challenge starting now!

There is always a ton to learn when dozens of friendly growers grow together. We love to compare different media, lights, nutrients, and strategies. Whether you are a new grower looking for guidance, or an experienced grower looking to share knowledge, we would love to grow together with you in our Cannabis Grow Challenges!

The Annual Coco for Cannabis Grow Challenge Calendar


The NYGC has Flowered!

Our New Year's Grow Challenge officially ended on May 1st. We gave out a ton of great prizes for the NYGC End of Grow Awards this year! Check out the NYGC Giveaway page to see the winners and their prizes announced! As you get excited about the switch over to the SAFC, check out one of the hundreds of NYGC Grow Journals to see how fellow community members' grows turned out and to draw inspiration for your next challenge journal!

The 3rd Annual Coco for Cannabis

Spring Auto Flower Challenge

The Theme and Groups

The Spring Auto Flower Challenge officially began on April 20, 2021, and there's still time for you to sign-up to participate in this year's Challenge! The idea behind this grow challenge is for growers to try their hand at growing auto flowers and share their experiences with the community. However, growing an auto flower is not required. Photoperiods are still welcome!

This year we are organizing the SAFC into groups based on the size of your grow space. Going off of that, we decided that our theme this year will be outer space! The challenge groups are organized based on our extraterrestrial theme!


This {relatively} little interstellar object will represent those of you working in the smallest grow spaces! This group is open for growers growing in a space that is smaller than 6 sq. ft.


Moving up in the framework of the celestial bodies, we have the planets group! This group is open to growers working in a grow space that is between 6 and 8.5 sq. ft.


A large star responsible for all life on Earth, especially plant life! The sun is a friend to any and every grower. Growers in this group will have grow spaces that are between 8.6 and 12.5 sq. ft.

Solar Systems

Multiple stars orbiting around the gravitational pull of a sun, creating a delicate yet enormous system! The solar systems group is our second largest grow space group and is open to growers using a space that is between 12.6 and 20.5 sq. ft.


The basic framework of the universe as we understand it, and an incredibly massive amount of space! This group is for growers with the biggest grow spaces of all and is open to those of you utilizing a grow space that is larger than 20.5 sq. ft.

Black Holes (Misfits Group)

Our Misfits group returns for the Spring Auto Flower Challenge as the black holes! This group is open to growers that don't conform to the confines of space.


The Side Challenges

Auto Supernova Challenge

Our interstellar grow challenge needed an equally out of this world side challenge, so we came up with the "Auto Supernova Challenge"! This is an optional event open to all growers in the SAFC. The idea of the challenge is to grow the largest auto that takes up as much space as possible! The Auto Supernova Challenge will feature some special prizes and is sure to be a fun side challenge! More details coming soon.

Party Cup Auto Challenge

Our Party Cup Challenge returns for the SAFC! The idea behind this challenge is to grow an auto from seed to harvest inside of a red solo party cup. Similar plastic cups will also work if your red solo days are behind you! The Party Cup Auto Challenge is another optional event for all growers participating in the SAFC. This challenge will have some of its own great prizes as well! More details coming soon.


SAFC Prizes and Giveaways

To help keep everyone motivated and having fun, we will be giving away prizes throughout the challenge! We will have monthly prize drawings that all SAFC growers can be eligible for. We will also have special recognition for Best Journals for the months of May and June. At the end of the grow, we will save some of our best prizes for Best Journal, Best Recovery, Best Growmie, and the winners of both of our side challenges!

We have some amazing prizes lined up already! Check out our Prize Sponsors below.


What is a Grow Challenge?

The Coco for Cannabis grow challenges are not competitions! Our goal is to bring new and experienced growers together in the spirit of collaboration. We coordinate timing to grow along together and learn from each other.

We create a special forum for each challenge where growers keep grow journals to document their grows. We organize the journals into groups for each challenge. For the SAFC, the groups will be based on the size of your grow space (see the “Space” above). The groups, the forum, and the whole idea behind growing together is about creating community and supporting fellow growers. We cultivate the Spirit of Collaboration along with our plants.

To be a full part of the grow challenge, all you need to do is sign up and keep an updated journal. How you manage your journal is up to you. You can document every step every day, or you can post a few pictures and a quick blurb once a week.


Sign-Up for the Spring Auto Flower Challenge 2021!

The Spring Auto Flower Challenge sign-up is now open! You can sign up for the challenge by clicking one of the buttons bellow. We can't wait to grow with you! is an inclusive and supportive community. We work to cultivate the spirit of collaboration along with our plants! We welcome all growers who want to learn, share and grow together!

Register for Coco for Cannabis and The Spring Auto Flower Challenge

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