ElNass 🌱 Germination Week — Bubba Kush by CSI Humboldt
And here we go again. 💚
This run has been a long time coming.
I’ve been wanting to grow something from Caleb at CSI Humboldt for more than two years, but for one reason or another I kept postponing it. This time, it’s finally happening, and I decided to start with Bubba Kush.
I’m particularly excited about this one because Bubba Kush represents exactly the kind of cannabis I want to explore more deeply: old-school genetics, character, and a cultivar selected for much more than simply looking good in pictures.
I’ve heard countless stories about how slow she can be in vegetative growth, some growers even recommend giving her a very long veg, so I’m going into this run knowing that patience will probably be one of the main ingredients.
And honestly, I’m completely fine with that.
? Same soil, another chapter
The setup remains essentially the same, and once again I’ll be growing in my established 113 L living soil/no-till system.
This time, however, there’s an important unknown.
I wasn’t able to get a proper soil analysis before starting the run.
After multiple cycles in the same soil, an analysis would obviously have been the best way to understand exactly what has accumulated, what has been depleted and what may need to be replenished. Without those numbers, I’ll have to rely much more on observation and on what the plant tells me.
During the previous run I noticed some lightening of the foliage around the stretch, which made me suspect that nitrogen mineralization may not have been keeping up perfectly with peak plant demand.
But I’m deliberately not trying to correct a problem before I actually see one.
Since Bubba Kush is known for being such a slow-growing plant, I should have plenty of time to observe how she responds to the soil before nutrient demand becomes really aggressive.
If deficiencies begin to appear, I’ll intervene early with an appropriate top dress, adjusting the approach according to what the plant is actually showing rather than blindly adding amendments from the beginning.
So this run will involve a little more intuition than I would ideally like.
No soil analysis.
An established soil entering another cycle.
A notoriously slow old-school cultivar.
And my first real experience with CSI Humboldt genetics.
After waiting more than two years to finally grow something from Caleb, I’m incredibly curious to see where this one takes me.
💚 This run is for Rasta
There’s also another reason why this grow is going to mean a little more to me than usual.
On July 31st, Rasta, my best friend’s cat, sadly passed away at only five years old.
I was incredibly attached to him. He was a beautiful cat with an amazing personality, and he gave me so many laughs and wonderful memories over the years. Five years was nowhere near enough.
So I’ve decided to dedicate this entire run to him.
A new life is beginning in this soil while I’ll be carrying the memory of another one with me throughout the journey.
This one’s for you, Rasta. 💚🐈⬛🌱
Thank you for all the beautiful moments and all the laughs.
Rest in peace, little buddy. I know we’ll meet again someday.
And now…
No rush. Let’s let Bubba be Bubba. 🌱
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Used method
Glass Of Water
Germination Method
1
Week 1. Vegetation
1d ago
1/3
18 hrs
Light Schedule
30 °C
Day Air Temp
70 %
Air Humidity
30 °C
Solution Temp
30 °C
Substrate Temp
27 °C
Night Air Temp
1 l
Watering Volume
ElNass 🌱 Week 1 — Learning Bubba’s Pace
The first real week of this journey is officially underway. 💚
After waiting more than two years to finally grow something from CSI Humboldt, it’s pretty exciting to finally see this little Bubba Kush starting her life.
Before beginning the run, I spent quite a bit of time researching Bubba Kush and talking to other growers about what to expect from her.
One thing comes up again and again:
Bubba is slow. Really slow.
Some growers even recommend extremely long vegetative periods, sometimes around three months, if the goal is to build a sizeable plant before flowering.
I’ve also come across claims suggesting that Bubba’s naturally slow growth may be related to relatively inefficient respiration or metabolism. I haven’t found enough solid scientific evidence yet to treat that explanation as fact, but it’s something I’d really like to investigate further during this run.
Another recurring observation is that Bubba doesn’t seem to appreciate very high light intensity.
Because of that, I’m deliberately starting with relatively low PPFD rather than trying to push her from day one. I’ll gradually adjust the intensity according to her response and document how she behaves along the way.
? A different start this time
I’m also approaching the beginning of this run differently from my previous grows.
Instead of planting directly into my 113 L living soil/no-till bed, Bubba will spend her first few weeks in a small plastic pot filled with a very simple light mix:
peat moss + worm castings + pumice + a small amount of kelp meal.
There’s a practical reason behind this decision.
If Bubba really is as slow during early vegetative growth as everyone says, there’s little reason to occupy the entire grow space with the 113 L container from day one.
Starting small allows me to use the space much more efficiently while she establishes herself.
Once the root system has properly colonized the starter pot and the plant is ready for the next stage, she’ll be transplanted into the 113 L established living soil, where she’ll have access to the full volume of soil and the mature ecosystem that has developed through the previous cycles.
That’s when the real experiment begins.
? Another cycle for the living soil
Unfortunately, I wasn’t able to perform a soil analysis before starting this cycle, so there’s still some uncertainty regarding the current nutrient balance of the 113 L bed.
During the previous run, I noticed some foliage lightening around the stretch, which made me suspect that nitrogen mineralization may have struggled to keep pace with peak plant demand.
But I’m deliberately not correcting a problem before it actually exists.
Bubba’s slow vegetative development should give me plenty of time after transplant to observe how she interacts with the soil.
If I begin seeing a consistent deficiency developing, I’ll intervene early with an appropriate top dress.
Until then, I’m letting the ecosystem work.
Observation over assumptions
That’s probably going to be the theme of this entire run.
I’ve read plenty about Bubba Kush before growing her:
slow growth, relatively low light preference, unusual metabolism, long vegetative periods…
Now I finally have the opportunity to see how much of that actually translates into the plant growing in front of me.
So rather than forcing Bubba into the way I normally grow, I’m going to adapt the environment to her response and document everything along the way.
Growth rate, PPFD tolerance, morphology, nutrient demand, root development, branching, stretch, aroma and eventually flower development.
For now:
Low PPFD.
Gentle VPD.
A simple light mix.
No unnecessary feeding.
And absolutely no rush.
If she wants to take her time, she can.
Once she’s ready, 113 litres of established living soil will be waiting for her. ?🌱
This time, Bubba sets the pace. 💚
CSI is solid ! I’ve still got an original UK cheese cut from the early 2000s, and some of their UK Cheese S1 pheno's come really close.. The closest i have seen in seed form. I’ve tried a few of their cultivars and, when grown right, they’re definitely top-shelf. Good luck with the grow brother ! I’ll be following along for the journey ! 😎
@The_Kitchen_Raccoon, Unfortunately, I wish I could’ve popped more seeds. Since it’s an S1, there’s no telling what kind of phenotypic variation I might get, but I just don’t have the possibility to run a proper pheno hunt right now.
I heard Caleb recently found a couple of absolutely insane phenos — I think they were #101 and #146. I’m hoping I somehow get lucky and find something along those lines, but with only one seed in the ground, it’s basically like looking for a needle in a haystack. 😂🤞