MILF Rev’s Rave – Blue Grapefruit 47 from KOS

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Howdy all and welcome to another Rev’s Rave, and today we be looking at the Blue Grapefruit 47 from Kingdom Organic Seeds (KOS), formerly called Blue Thai. The serious grapefruit flavors and smells guided me in the renaming. She was formerly untested as the Blue Thai but now fully tested and grown by myself and others. I have peeps contact me fairly often asking me for more narcotic type resin profiles. Well, this puppy here certainly fits the bill. Very narcotic indeed, and really what I would call “wheelchair weeds” without the full on couch-locking effect many varieties of this type also often have. Let’s dive straight in and get to know her a bit, shall we?

Breeder: KOS (Kingdom Organic Seeds)
Growing/Breeding Style: True Living Organics (TLO)
P1 Lineage: Blue Rhino 1947 x Riffraff Thai
Availability: KOS at JBC Seeds – BG47 is Coming There Soon

Blue Grapefruit 47 Fast Deets

Some Phenotypes Smell Like Grape Crush at This Point

Yield/Size: Medium/Good (about 1 in 3 females are really good yielders)
Flowering Time Indoors: 10 Weeks
Smells/Flavors: Grapefruit Hash
Effects (Legs): High Lasts for a Few Hours with a Smooth Comedown
Stretch: 2x
Lighting Used: LED (420h) 400 watt
Photoperiods:

1. Sprouting: 16/8 (or, 12/12 for the first 14 days above ground)
2. Vegetative: 18/6
3. Flowering: 12/12

Sativa/Indica Ratio: Approximately 80/20 Indica/Sativa
Outdoor Harvest (Northern Hemisphere): 2nd Half of October
Special Skills Needed: None – Very Easy to Grow
Germination Ratio: 90%+
Breeding Style: Regular Seeds – Using Real Males, No Selfing, Reversing, or Femming

P1 Lineage Details

Blue Grapefruit 47 Has Some Heavy Hitters in Her Lineage

Male P1 Parent: A Superior Blue Rhino 1947 (BR1947) male, a favorite phenotype from an earlier inbreeding run. BR1947 is a product of circa 2000 Blue Rhino from Irish Rose seeds, crossed with Peak19/AK47 F1 hybrid from Cbay, also around circa 2000

Female P1 Parents: Two Riffraff Thai females (Deep Chunk x Kali Thai circa 2000).

Smoking Insights

Blue Grapefruit 47 is Actually Quite Red

Effects: Immediate “numb face” sensation. Boosts creativity and mood, great for art, music, and social environments. Rolling “freight train” come-on effect from the Thai, peaking after about 10 minutes. Not ideal for operating machinery due to its strong and distracting effects.

Mood Influence: Uplifting, fun, and intense—“wheelchair weed” with face-numbing potency. This is truly a FUN ride.

Flavors: And this is why I gave this one the grapefruit name. Yup, you guessed it, pretty much every female phenotype I have tried has tasted like grapefruit and hash. Delicious. A few, like 1:7 females keep more of an actual grape terpene expression.

She Has Some Good Yielders That Are Easy to Trim

Blue Grapefruit 47 Growing Guide

Ease of Growth: Very easy to grow, with excellent calyx-to-leaf ratio for easy trimming.

Temperature: Keep bud tops at or below 86°F.

Watering Needs: Do not overwater! As with most cannabis varieties.

Preferred pH: 6.2 to 7.0

Photoperiod Tips:

- Avoid a 24/0 photoperiod; I prefer 16/8 until 30 days old, then switch to 18/6.
- Alternatively, use 12/12 for sprouts (first 14 days), then switch to 18/6 (or 16/8) to sex plants at right around 30 days old.
- Flower plants only after they are 55 days old from sprouting for optimal resin production.

Outdoor vs. Indoor:

- Plants from seed excel outdoors in the ground better than clones.
- Clones perform better in containers than seed plants.

Germination Environment: 75–85°F ambient temperature. RH 40%—60%. High intensity lighting.

Soil Recommendation: Organically grown, in living soil, for enhanced flavors, aromas, and an elegant smoking experience overall.

True Living Organics the Druid’s Edition by The Rev

Unique Traits

Phenotype Variety: “Chunky Recombo” style leads to several diverse phenotypes.
Resin Production: All female F1s are heavy resin producers. This is a real face-planting type of cannabis.
Terpene Profiles: Roughly 25% of females express strong grape terpenes early in flowering.
Runts: Occasional runts (1 in 7) that can be surprisingly potent and resinous—ideal for personal connoisseur, or very small space gardens.

Final Thoughts

Chunky Recombo — refers to the fact that even though this is an F1 hybrid, the offspring are not totally uniform but rather they express variable morphologies and resin profiles to some degree. I prefer these types scouting for mother clones and breeders that are stand outs.

The Blue Grapefruit 47 is a clone hunter’s dream with its diverse phenotypes, resin-rich buds, and mood-enhancing effects. Whether for casual growers or connoisseurs, this hybrid offers an exciting and potent experience. Definitely keep an eye out for her to show up at JBC Seeds very soon.

Want another Rev’s Rave to read? Check this out: Blue Rhino 1947 by KOS. This one is available now from KOS at JBC Seeds. Hey… I have a YouTubes channel that’s all about growing weeds, mostly indoor/container organics style. Have a look and see if it’s a good fit for your growing dynamic, thar she blows: Rev’s YouTubes Channel!

Ya know, I’m all about the different experiences with various cannabis types and varieties. Have a good look over at KOS and check out some of the exotic beauties. These weeds aren’t just all about knocking the crap out of you, making you hungry and sleepy, you savvy? Maybe try out a little Pink Widow with your BG47 yeah? You can reach out to me directly if you like at:

The Rev: tlodruidsguide@gmail.com

Okay then, until next time we meet, I’m outty for now. L8r G8rs…