Cash Express by Zamnesia | Pheno B 🚂🌱
Vegetative Week 1 | Taking Her Time
Hello GrowDiaries family! 👋🌱
Welcome back to the journey of Cash Express Pheno B.
After a successful germination and smooth transition into her final container, this week marks her first full week of vegetative growth as she begins establishing herself inside the new environment.
As with every plant in this project, Pheno B is being grown under a 12/12 From Seed methodology, allowing us to document how individual phenotypes develop when exposed to flowering photoperiods from the very beginning of life.
Although she shares the same room, substrate, nutrition program, and environmental conditions as her sister, she is already beginning to display her own personality.
And that’s exactly why each phenotype receives its own diary.
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Straight Into The Final Container
Just like the rest of the project, Pheno B was transplanted directly into her final container early in life.
With 12/12 From Seed grows, every day of vegetative development matters. By avoiding multiple transplants later in the cycle, we allow the root system to establish itself immediately in its permanent home.
The objective is simple:
Minimize interruptions.
Maximize root development.
Allow the plant to focus entirely on growth.
At this stage, most of the real work is happening below the soil surface.
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Building Foundations In Lightmix
For this run we are using Plagron Lightmix as our base substrate.
Lightmix provides a balanced environment for young plants by offering gentle nutrition while maintaining excellent aeration and root-zone conditions.
Young seedlings don’t need aggressive feeding.
They need stability.
They need oxygen around the roots.
And they need a healthy environment that allows them to establish themselves naturally.
So far, Pheno B appears very comfortable in her new home.
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Gentle Nutrition Strategy
The first watering after transplant consisted of plain water only.
During the earliest stages of life, seedlings still carry enough energy reserves from the seed itself to support initial growth, especially when combined with the nutrients already available within the substrate.
Around Day 4 we introduced a light feeding program consisting of:
🌱 Terra Grow
🌱 Pure Zym
🌱 Power Roots
🌱 Sugar Royal
All products were applied gently with the objective of supporting root expansion, microbial activity, and healthy early development.
At this stage, less is often more.
The goal remains healthy growth rather than rapid growth.
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Light Levels & DLI Considerations
One aspect that often surprises growers following these diaries is the fact that seedlings are already receiving approximately 350 PPFD.
Under traditional 18/6 vegetative schedules, this may appear relatively strong.
However, because this project operates under a 12/12 schedule from seed, the total Daily Light Integral (DLI) remains much lower than it would under longer lighting periods.
This allows us to introduce moderate light intensity early while still maintaining an appropriate overall daily light load.
The objective is to help plants adapt to stronger light from the beginning while avoiding unnecessary stress.
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Environmental Conditions
Conditions remained stable throughout the week:
🌡️ Day temperature: 27°C
🌙 Night temperature: approximately 25°C
💧 Relative humidity: 55%
🌱 Solution temperature: 21°C
🌱 Substrate temperature: 21°C
🌿 CO₂ levels: approximately 600 ppm
Maintaining consistency during the seedling stage remains one of the most important factors in achieving healthy development later in the cycle.
So far, the environment has remained exactly where we want it.
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Early Observations
Cash Express Pheno B is already beginning to show slight differences compared to her sister.
While growth has been very similar overall, Pheno B appears slightly more compact and methodical in her development.
Leaf expansion has been steady.
Color remains healthy and vibrant.
The structure is symmetrical and balanced.
By the end of the week, healthy development of the first true leaves is clearly visible, and the plant appears fully settled into her new environment.
Sometimes the most interesting phenotypes are not the fastest ones.
Sometimes they’re simply the ones that take their own path.
At this stage, Pheno B looks healthy, happy, and ready for the next step of the journey.
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Looking Ahead
As the roots continue exploring the container and nutrient uptake increases, we expect vegetative growth to accelerate over the coming week.
The next stage should reveal more about the structural tendencies of this phenotype and help us better understand how she differs from her sister.
For now, the objective remains unchanged:
Healthy roots.
Stable growth.
Strong foundations.
Everything else comes later.
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Thank You
A huge thank you to Zamnesia for providing the Cash Express genetics for this project.
Thank you to Plagron for the nutrition and substrate supporting this run.
And thank you to Future of Grow, Mammoth Tents, AutoPot, Can-Filters, Prima Klima, and everyone following along and supporting these diaries.
Your support makes projects like this possible.
As always, thank you for stopping by.
Until next week…
Grower’s Love everyone. 🌱💚🚂