Frosted Guava Auto – Pheno A | Week 2 Vegetation
Hello everyone, and welcome back to another update from the 12/12 From Seed adventure.
Today we’re checking in on Frosted Guava Auto Pheno A as she completes another week of steady progress under the same controlled environment shared by the rest of the project.
For anyone joining the journey for the first time, this run follows multiple Zamnesia cultivars grown side by side under a 12/12 lighting schedule from seed. Each phenotype is documented individually, allowing us to observe not only cultivar differences but also the unique characteristics that emerge between sister plants.
This week provided another great example of why phenotype tracking is so interesting.
When comparing Frosted Guava Pheno A directly beside her sister, it’s clear that she is developing at a slightly slower pace. While both plants remain healthy, Pheno A has taken a more measured approach to early vegetative growth.
Fortunately, slower does not mean weaker.
In fact, one of the most encouraging observations this week was seeing how much structure she has built despite progressing a little behind her sibling.
The canopy is becoming increasingly balanced, node spacing remains compact, and the overall architecture is developing into a very attractive shape. Looking down from above, the plant displays a pleasing symmetry that becomes more noticeable with each passing day.
The newest growth is particularly encouraging.
Fresh leaves are emerging rapidly from the center of the plant, showing healthy coloration and strong vigor. Earlier leaf quirks remain visible in some of the older growth, but these characteristics appear to be fading into the background as newer leaves emerge with improved form and structure.
This is something growers see regularly.
Seedlings often produce unusual or imperfect leaves during their earliest stages. As the plant establishes itself and growth accelerates, those early quirks frequently disappear and become nothing more than an interesting footnote in the diary.
Frosted Guava Pheno A seems to be following exactly that pattern.
Throughout the week, environmental conditions remained stable:
• 12/12 lighting schedule from seed
• Day temperatures around 27°C
• Night temperatures around 25°C
• Relative humidity around 55%
• CO₂ approximately 600 ppm
• Solution temperature around 21°C
• Substrate temperature around 21°C
Nutrition remained unchanged from the rest of the room:
• Plagron Terra Grow – 1.8 ml/L
• Plagron Pure Zym – 1 ml/L
• Plagron Sugar Royal – 1 ml/L
• Plagron Power Roots – 1 ml/L
This combination continues supporting both root development and healthy vegetative growth while maintaining consistency across the entire project.
One of the reasons consistency is so important in multi-cultivar grows is that it allows the genetics to tell their own story. When every plant receives similar environmental conditions and nutrition, differences in development become much easier to observe and understand.
And Pheno A is definitely beginning to tell her own story.
She may not be the fastest plant in the room, but she is steadily building a strong foundation. The stem continues thickening, the canopy continues expanding, and every new set of leaves looks stronger than the last.
At this stage, there is absolutely no reason to rush her.
Healthy plants have a remarkable ability to catch up when conditions remain stable, and Frosted Guava Pheno A appears perfectly comfortable continuing her development at her own pace.
Overall, Week 2 was another successful step forward.
Healthy color.
Strong structure.
Steady growth.
And plenty of promise for the weeks ahead.
Thank you to everyone following along, supporting the diary, sharing knowledge, and helping make this community such an amazing place for growers around the world.
A special thank you as always to Zamnesia for the genetics, Plagron for the nutrition, and to every grower documenting their own journey alongside us.
Until next week, growers love and happy growing everyone. 🌱💚