Rainbow Belts Strain: Effects, Flavor, Terpenes and Lineage

By James Buddsey · Updated November 4, 2026

Rainbow Belts is a balanced hybrid cannabis strain bred by Archive Seed Bank in Portland, Oregon, from Zkittlez and Moonbow, known for a citrus, grapefruit and gas aroma. The line was released around 2017, and the cut became a favorite among West Coast connoisseurs. THC typically lands in the low to high 20s, and the high starts giggly before settling into a calm, heavy body feel.

Rainbow Belts Strain at a Glance

Where Rainbow Belts Comes From

Rainbow Belts comes from Archive Seed Bank, a Portland, Oregon breeder founded by ThaDocta. Weedmaps lists the cross as Zkittlez and Moonbow #75, with the original line released in 2017. Moonbow itself descends from Zkittlez and Do-Si-Dos, so the plant is unusually Zkittlez-heavy, which helps explain the candy-fruit core of the flavor.

The name is often shortened to RBX or Rainbow Belts, and the strain turned up in West Coast dispensaries and on the craft market as the 2020s approached. Because Archive breeds in small batches and many other growers released their own crosses under similar names, the genetics sold as Rainbow Belts can vary. If you like the strain, look for the Archive Seed Bank label or a producer that names the cut.

Not much has been documented about specific awards or offspring from public sources, so that part of the strain’s history is still being written.

Rainbow Belts Effects: What It Feels Like

Rainbow Belts is a two-stage experience for most users. The first part is a quick, giggly lift in the head, with a happy and euphoric feel. Weedmaps reviewers tag it with relaxed, happy and euphoric as the top effects, and describe an early upbeat phase that settles into a calmer, heavier body sensation.

That shape makes it better for late afternoons and evenings than for work. Many people use it for a movie, a meal or an easy hang with friends. With THC often well above 20%, a large dose can tip toward couch-lock, so newer consumers should start small and wait before adding more.

Rainbow Belts Terpenes, Aroma and Flavor

The nose opens with bright citrus and grapefruit, then fruit: apricot, mango and tropical notes. Under that sits a floral sweetness and a finish that Weedmaps describes as diesel and earth, with some pepper. The flavor follows the aroma closely, bright and sweet up front and a little gassy on the exhale.

Leafly does not publish a page for this strain, so terpene data is limited. Limonene, caryophyllene and myrcene are the most likely leaders for a Zkittlez and Moonbow cross, but lab tests on the batch you buy are the real answer. The dense buds can show blue, purple, pink or yellow tones late in flowering.

Side Effects and How to Use Rainbow Belts

Expect the usual dry mouth and dry eyes. A heavy dose can bring drowsiness, and a minority of users find strong, high-THC hybrids bring on anxiety or a racing mind. Keep water close and pace yourself.

If you are new to Rainbow Belts, start with one small inhalation or 2.5 mg in an edible and wait before taking more; see our dosing guide.

Do People Use Rainbow Belts for Medical Reasons?

Users often mention stress, tension and trouble winding down as reasons for choosing a relaxing, fruity hybrid like this. There is not enough strain-specific data to say more, and these are personal reports rather than medical findings.

These are user reports, not clinical findings. For what research actually supports, see our cannabis health and research section, and talk to your doctor before using cannabis for a health condition.

Growing Rainbow Belts

• Difficulty: Moderate
• Flowering: About 9 weeks
• Yield: Moderate
• Height: Medium
• Environment: Indoor

Weedmaps puts flowering at around nine weeks. The flowers are dense and sugary, which means good airflow and humidity control matter. In western Oregon and Washington, an outdoor crop would face real bud-rot risk in a wet fall, so a greenhouse or indoor room is the safer choice.

Home-grow rules depend on the state: adults can grow at home in states such as California (six plants per residence), Michigan (12 per residence) and Oregon (four per household), while Washington and Illinois allow home growing only for registered medical patients. Check your state in our cannabis laws by state guide before you plant anything.

Strains Like Rainbow Belts

• Zkittlez: a parent with a candy-fruit profile
• Do-Si-Dos: a grandparent in the Moonbow line, sweet and relaxing
• Rainbow Gelato: another colorful, fruity hybrid
• Gelato: a creamy dessert hybrid with a similar euphoric start
• Runtz: a sugary Zkittlez-family hybrid
• Blue Zushi: a Zkittlez cross with mint and berry notes

Browse more hybrid strains, the full strain directory, or our guide to cannabis strains.

More Hybrid Strains to Explore

Rainbow Chip · Rainbow Driver · Rainbow Gelato · Purple Trainwreck · Purple Maui · Purple Mahayana · All hybrid strains

Where to Buy Rainbow Belts

Dispensary menus change every week, and Rainbow Belts may be sold under its own name, as a cross or as a pre-roll or vape. The fastest way to find it is to check store menus online before you go. In Spokane, browse Spokane dispensaries and check the menus at stores like Cinder Downtown Spokane and Lidz Cannabis North Spokane. In Eugene, browse Eugene dispensaries and check the menus at stores like Oregon Cannabis Mart Goshen and Flowr of Lyfe. You can also browse licensed dispensaries in every state we cover. Adults 21 and older can buy with a valid photo ID; see cannabis laws by state for purchase limits.

Rainbow Belts FAQ

For adults 21+ in legal states. Strain information reflects breeder descriptions, lab data and user reports; effects vary by person and batch. Not medical advice.