TL;DR
- Lean: Indica-leaning hybrid, 24 to 29 percent THC
- Flavor: Bright rainbow candy fruit over savory garlic and gas
- Effect: Clean cerebral lift, deep grounded body. Couch-friendly with a long warm tail.
- Best for: Late afternoon, evening sessions, food, low-key social settings
- Bottom line: The Archive keeper from an 89-pheno hunt, candy and funk in the same plant without one burying the other
Buy Dark Rainbow #1 Clones ($69)
HLVd-screened. Free 2-day shipping to all 50 states.
Verified Archive Seedbank cut, Rainbow Belts F1 x GMO
Rooted and ready to plant the day it arrives
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Strain Overview
Dark Rainbow #1 is the keeper that came out of Archive Seedbank’s Rainbow Belts F1 x GMO pheno hunt. The Rainbow Belts side brought the candy-fruit terps and the bright color expression. The GMO parent on the other side stacked savory funk and gas underneath, which is what gives Dark Rainbow #1 her signature contrast. Sweet candy up front, savory funk on the back, with the kind of resin coverage Archive cuts are known for.
She is one of the more interesting boutique cuts on the modern menu. The flavor reads category-distinct, the bag appeal scales with the cure, and the verified Archive cut runs reliably across phenos. A full 89-pheno hunt produced this keeper, which is why the #1 designation matters.
Quick Facts For Smokers
| Price | $69 (free 2-day shipping) |
| THC | 24-29% |
| Dominant terpenes | Caryophyllene, limonene, myrcene |
| Lineage | Rainbow Belts F1 x GMO |
| Breeder | Archive Seedbank |
Quick Facts For Growers
| Flowering time | 8-9 weeks indoor |
| Yield | Medium-to-high, around 1.4 to 1.7 oz per square foot |
| Stretch | 1.5 to 2x |
| Difficulty | Intermediate |
| Climate | Indoor, light dep preferred |
Lineage & History: Candy and Funk in the Same Cross
The Rainbow Belts side is Archive Seedbank’s Zkittlez x Moonbow line, contributing the candy-fruit terpenes and the rainbow color expression that the strain name promises. That side gives Dark Rainbow #1 her bright front of the flavor, her trichome coverage, and her color expression on cool finishes. The GMO parent on the other side is Skunkmaster Flex’s Chemdog x GSC cross, which brought savory garlic-and-onion funk into the cross alongside the dense bud structure that makes Archive cuts forgiving to run.
The “#1” designation matters. Archive ran a multi-pheno hunt of the Rainbow Belts F1 x GMO cross and selected this keeper as the cleanest expression of both parents. Most of the offspring leaned either candy-forward or funk-forward. The #1 expression is the one that pulled both forward at the same time, which is what makes her worth the menu spot. Archive’s pheno-hunt rigor on this line is why the verified cut commands her shelf placement.
If you have run anything from the Archive catalog, the structure will feel familiar. Dark Rainbow #1 is the rare candy-and-funk cross where neither side dominates the other.
Flavor & Aroma
Smells like a candy store next to a garlic-and-fuel pump. The first thing that hits is bright candy-fruit and rainbow-Z terps from the Rainbow Belts side. Right behind, the GMO funk rolls in. Savory garlic and onion, a chemmy backbone, and a heavy gas note grounding the back. A quiet pepper from the caryophyllene runs through the whole bouquet. Around week 6 of flower the room reads sweet up front and savory underneath, which is the Dark Rainbow #1 signature.
On the inhale, candy and ripe fruit hit first. The mid-palate brings savory funk and a soft fuel lift. The exhale closes on heavy gas, pepper, and a long candy-and-savory fade that hangs on the tongue past the smoke. Smoke is dense and oily at a proper cure. Joints leave heavy resin rings on the rolling paper.
She presses into rosin at premium yields. The candy-and-funk profile holds up through extraction. Live hash leans deeper into the funk. Rosin pulls the candy forward. Either format reads category-distinct.
Effects & What to Expect
Onset is moderate. The first ten minutes bring a clean cerebral euphoria with a soft mood elevation and a quiet pressure behind the eyes. The opening window is balanced, talkative without being racy, the kind of pace that pairs with social settings, food, or low-key creative work.
Around the 30 to 45 minute mark, the body component takes over. It is real. Limbs settle. Appetite shows up. The headspace turns deep and grounded, with a couch-friendly quality that builds through the next hour. Music sounds richer. The total experience runs about two and a half hours with a long warm tail.
This is an evening cultivar. The body weight is too pronounced for sharp morning work, and the GMO influence pulls her firmly into the late-afternoon-to-night rotation. Tolerance breakers will appreciate her replay value. New users should respect the THC ceiling and start small.
Growing Dark Rainbow #1
She runs as an intermediate grow. The dense GMO-side bud structure means humidity discipline matters in the back half of flower. She finishes in 56 to 63 days indoors. Most growers chop at day 60 for the cleanest candy-and-funk split.
Structure runs medium with strong central cola dominance and good lateral branching. Top her at the fourth node and run a SCROG screen for a flat canopy. Stretch through the first three weeks of flower lands around 1.5 to 2x. Indoor yields land medium-to-high, around 1.4 to 1.7 oz per square foot under solid 600-1000W equivalents. Outdoor harvests come down early-to-mid October.
Feed her moderately. The GMO side wants steady, balanced nutrition. The Rainbow Belts side rewards consistent cal-mag. Push EC past 2.4 in early flower and she will tip-burn. Keep humidity below 50 percent from week 6 forward. Her colas pack tight enough that any sustained RH spike turns into bud rot fast.
Cool the room in the last 10 days. Drop nighttime temps to 62-66°F and the Rainbow Belts side throws color reliably across the calyxes. The cooler the finish, the deeper the color expression. Slow dry, long cure. Her candy-and-funk character is volatile, and a rushed dry flattens both sides. Twelve days at 60 percent RH followed by a four-week jar cure is where the full Dark Rainbow #1 profile lands.
Buy Dark Rainbow #1 Clones ($69, the keeper from the hunt)
Order Dark Rainbow #1 clones today. Free 2-day shipping to all 50 states.
Verified Archive Seedbank cut
Rooted, screened for HLVd, ready to plant the day they arrive
Shop Dark Rainbow #1 clones at GSRH →
If You Like Dark Rainbow #1, Try
- Cookies n Chem: another gas anchor in the catalog, denser fuel and a slower body.
- GMO Sherb: stays in the diesel lane, louder front and a heavier kush back.
- Race Fuel: the chemmier counterpart, same loud bag with a different funk.
FAQ
What is the lineage of Dark Rainbow #1?
Rainbow Belts F1 crossed with GMO, with the #1 keeper selected by Archive Seedbank.
Why is this called #1?
Archive ran a pheno hunt of the cross. The #1 designation marks the keeper that landed the cleanest expressi
