Hybrid70% Indica / 30% Sativa16-27% THC

Rozay

Also known as: Purple Rozay, Rozé

Breeder: Relentless Genetics

A terp-forward hybrid from Relentless Genetics that helped put the breeder on the map, prized for its signature berry fruit roll-up, red wine, and Flintstone vitamin terpene profile alongside vivid purple and pink coloration. Now in its F4 generation after four rounds of selective breeding, Rozay produces dense, resin-heavy flowers that wash exceptionally well for solventless extraction and consistently cross the 2.0% total terpene threshold. Rozay represents a deliberate departure from the THC-ceiling arms race. Relentless Genetics selected this cross specifically for its terpene novelty — the Purple Bomb father unlocked aromatic compounds from the purple diesel grandmother that had remained dormant in other combinations. The result is a cultivar whose reputation rests almost entirely on flavor: cream, berry fruit leather, red wine, and an uncanny Flintstones-vitamin nostalgia that medical users describe as unlike anything else in their experience. THC ranges from 16% in some phenotypes to the mid-20s in others, but the consistent throughline is that terpene content routinely exceeds 2.0% total, with limonene and beta-caryophyllene typically leading, supported by linalool and myrcene. As a breeding tool, Rozay has spawned a family of popular crosses — Frozay, Rozay Cake, Rainbow Rozay, Rozay Sorbet — cementing its role as a terp-forward foundation variety for the modern dessert-hybrid category. The F4 generation is now available as regular seed, representing four generations of selection for the signature Rozay traits.

Lineage

Sunset Sherbet x Purple Bomb

THC Range

16-27%

Flower Time

8-10 weeks

Difficulty

Moderate

Lineage & Genetics

Cross: Sunset Sherbet x Purple Bomb

Sunset Sherbet (Girl Scout Cookies Thin Mint x Pink Panties) provides the dense bud structure, heavy resin production, creamy dessert-like terpene base with pastry-dough and sherbet mid-palate notes, and color potential from Pink Panties. Purple Bomb (Purple Diesel x Black Rose), also bred by Relentless Genetics, delivers vivid purple/pink coloration from multiple anthocyanin-expressing ancestors and the unique 'hidden terps' — specifically the berry fruit roll-up, red wine, and Flintstone vitamin notes that the breeder attributes to the Purple Diesel grandmother. Black Rose, bred by Heath Robinson from Black Russian x Shiva Skunk (Purple Pheno), contributes additional purple genetics and indica structure.

Lineage Dispute

A separate strain also called 'Rozé' exists, bred by 3rd Gen Fam and Dying Breed Seeds from Zkittlez x an unknown strain — it is NOT the same as Relentless Genetics' Rozay. 'Pink Rozay' by Cookies/Grandiflora (Lemonchello x London Pound Cake #75) is also a different strain. The 2017 Emerald Cup 2nd place (Outdoor) was awarded to the 3rd Gen Fam/Dying Breed Seeds 'Rozé,' not to Relentless Genetics' Rozay. Hytiva's description of Rozay as 'award-winning' may be conflating the two strains.

Terpene Profile

DOMINANT

Limonene — 0.5–0.9%; delivers citrus lift, lemon-candy brightness, and mood elevation

DOMINANT

Caryophyllene — 0.4–0.8%; adds pepper-spice backbone and interacts with CB2 receptors for anti-inflammatory action

SECONDARY

Linalool — 0.15–0.35%; provides floral calm, lavender notes, and anxiolytic depth

SECONDARY

Myrcene — 0.2–0.6%; contributes smooth mouthfeel, earthy base, and body relaxation

SECONDARY

Ocimene — 0.1–0.2%; adds tropical, herbal undertones

SECONDARY

Humulene — 0.05–0.2%; provides earthy, woody notes

Aroma: Strawberry preserves, red grape skin, and hibiscus-like tart florals dominate, with cotton candy, lychee, and sweet-dough roundness. When ground, a juicier candy-forward blast emerges with lemon-zest brightness and traces of lavender. In warm rooms, a subtle diesel whisper may appear from the Purple Diesel heritage. Properly cured samples perfume a room immediately — like chilled rosé, fresh berries, and sugared petals.

Flavor: The inhale opens with strawberry-raspberry compote, red grape skin, and a lemon-candy flicker, veering into creamy sherbet and pastry cream at mid-palate. The exhale delivers fine-grained pink-pepper spice with floral echoes and a wine-like tannic finish. In joints, the candy profile deepens into jammy, tannic fruit with a wisp of pastry. Vaporized at lower temps, lavender and tropical undertones become vivid; higher temps bring out caryophyllene spice and faint diesel grip.

Effects & Experience

Onset: Fast — cheerful, clear euphoria within 2-5 minutes. Mood lift accompanied by sensory enhancement.

Opens with uplifting, sociable, clear-headed euphoria where the world feels brighter and more colorful. By 10-60 minutes, a warm body effect smooths tension in shoulders and lower back without heavy couchlock. Conversation flows easily and sensory experiences are enhanced. At higher doses or past the 60-minute mark, transitions into a cozy, reflective state suited for unwinding — buoyant and mood-elevating before slowly becoming introspective.

Duration: 2-3 hours for flower, with residual calm persisting beyond the peak.

Commonly Reported Uses

Stress reliefAnxiety reductionMood elevationMild pain modulationAppetite stimulationEvening relaxation

Grower's Notes

Flower

8-10 weeks

Indoor Yield

450-550 g/m²

Outdoor Yield

High (Mediterranean climate)

Difficulty

Moderate

Height / Stretch

Medium (1.5-2x stretch)

Environment

Indoor preferred; Mediterranean outdoor/greenhouse

Rozay is a terp-forward, color-rich hybrid selected for its singular terpene expression rather than ceiling THC. Patient cultivators are rewarded with dense, resin-loaded flowers and a flavor profile that defies easy comparison.

Growth Structure and Training

Medium-height plant with robust lateral branching and moderately tight internodes. Expect 1.5–2.0x stretch after flip. Top at the 4th–6th node and LST to open the center, training for 6–8 main tops per plant in 5-gallon containers. Excels under SCROG or double-trellis. Manifolding works well with the cooperative branching architecture.

Flowering Time and Harvest

Indoor flowering runs 8–9 weeks (56–63 days), with select phenotypes extending to 63–67 days for maximum color and terpene expression. Defoliate lightly at day 21 and day 42 to promote airflow. Some growers shift to 11/13 lighting in the final week for additional color.

Nutrient Management

Moderate feeder equally at home in coco, soilless mixes, and living soil. In coco or hydro, pH 5.8–6.2 with EC 1.2–1.8 in veg and 1.8–2.2 in peak flower. Soil pH 6.2–6.8. Transition to bloom ratio by weeks 4–6 and avoid heavy nitrogen after week 3 to preserve color and terpene integrity. Sulfur and magnesium support terpene biosynthesis.

Growing Media

Genuinely flexible. Living soil intensifies the signature cherry-cola and plum-sauce terpene expressions through organic microbiology. Coco delivers faster growth and precise control, while soil builds flavor depth.

Environment and Climate

Veg at 75–82°F with 60–70% RH (VPD 0.8–1.2 kPa). Step down through flower: weeks 1–3 at 74–80°F/55–60% RH, weeks 4–6 at 72–78°F/50–55% RH, weeks 7–9 at 68–75°F/45–50% RH. Anthocyanin expression triggers at night temps of 62–68°F in the final 10–14 days, though many phenotypes color from the start of flower. Avoid daily swings exceeding 12°F.

Lighting

Target 400–600 µmol/m²/s PPFD in veg, scaling to 800–1,000 µmol/m²/s in bloom. CO₂ enrichment at 900–1,200 ppm in sealed rooms pushes resin production further.

Pest and Disease Resistance

Dense calyx stacks are susceptible to botrytis in stagnant, humid conditions. Maintain VPD at 1.2–1.5 kPa through mid-flower and prevent RH spikes during lights-off. Deploy predatory mites preventively and rotate Bacillus subtilis against PM in veg. Cease all foliar applications by early flower to protect trichome integrity.

Yield

Clone nurseries report Rozay stacks massive dark purple-red buds and delivers exceptionally large harvests. Indoor yields of 450–550 g/m² are achievable with proper training.

Bud Structure and Trichomes

Compact cones and spires with abundant pearly trichomes and predominantly capitate-stalked heads. Pistils range from peach to tangerine. Well-grown Rozay grades A or AA visually with showpiece tops that hold structure in jars.

Color Development

A defining visual trait — many phenotypes display vivid purple, magenta, and pink from the Purple Bomb father’s anthocyanin genetics. Some phenos color from the start of flower; others develop in the final 2–3 weeks. Cool nights intensify expression but are not required for all phenotypes. Cured buds show magenta-to-plum streaks against lime-to-olive bracts with silver trichome frost.

Drying and Curing

Slow hang-dry at 60°F and 60% RH — overdrying erases the creamy mid-palate and collapses the floral sparkle. Cure a minimum of one month at 58–62% RH to develop the berry-compote, red-wine tannic finish. Properly cured Rozay projects its aroma across a room.

Wash and Extraction

A standout solventless performer with above-average hash yields confirmed by multiple sources. Rosin amplifies the jammy-grape and melted-sherbet motif. Dense trichome coating and high calyx-to-leaf ratio translate to efficient ice-water processing with minimal plant-matter contamination. Total terpenes concentrate to 3–7% in solventless products.

History & Origin

Rozay was created by Relentless Genetics in Colorado, with the original cross made in the mid-to-late 2010s by hitting Sunset Sherbet with a colorful Purple Bomb stud. The breeder states Rozay is 'a cross that helped put Relentless Genetics on the map,' independently confirmed by Weedmaps as 'a version so good that it's said to have popularized Relentless Genetics.' By the early-to-mid 2020s, Rozay phenotypes and crosses were appearing across multiple legal markets, particularly popular in connoisseur-focused dispensaries. Word of mouth, social media grow logs, and hash competition placements drove its reputation. In 2024, American budtenders spotlighted Relentless Genetics as a source of essential terp-heavy selections. Seeds were available at the 2019 Emerald Cup via Neptune Seedbank. Rozay has become a foundational strain for modern dessert-style hybrids and is now available in its F4 generation, indicating sustained commercial interest and continued breeding investment. SeedFinder.eu lists 16 direct descendants.

Awards & Recognition

●3rd Place Indica Flower — Arizona Cannabis Awards Music Festival 2023 (22 Red)
●Strawberry Rozay Live Rosin entry — High Times Cannabis Cup Michigan 2023 — AU Non-Solvent Concentrates (Society C) — Rozay cross (Strawberry Rozay)

Notable Crosses

Strains bred using Rozay as a parent:

#1 Stunna— Twisted Velvet x Rozay→

Frozay— Gelato #41 x Rozay

Rotten Rozay— GMO x Rozay F2

Blood Diamond— Rozay x Tropicana Cherries

Blue Razzay— Now n Later x Rozay

Millennium Falcon— Rotten Rozay x Rozay

Rainbow Rozay— (Cherry Cookie x Sunset Sherbet) x Rozay

Raspberry Rally— Rozay x Legends Ultimate Indica

Red Dacca— Rozay x Banana OG

Red Red Wine— Rozay x Jet A

Anime— (Skunkbeard x Animal Cookies) x Rozay

Stunray— #1 Stunna #43 x Rozay F3

NOLA Monsoon— Rotten Rozay x Frozay #94 (reversed)

Frequently Asked Questions

7 common questions about Rozay

What is Rozay and what are its genetics?

Rozay is a hybrid cannabis strain (70% Indica / 30% Sativa) bred by Relentless Genetics. It is a cross of Sunset Sherbet x Purple Bomb, testing at 16-27% THC. A terp-forward hybrid from Relentless Genetics that helped put the breeder on the map, prized for its signature berry fruit roll-up, red wine, and Flintstone vitamin terpene profile alongside vivid purple and pink coloration. Now in its F4 generation after four rounds of selective breeding, Rozay produces dense, resin-heavy flowers that wash exceptionally well for solventless extraction and consistently cross the 2.0% total terpene threshold.

What does Rozay smell and taste like?

Rozay's dominant terpenes are Limonene, Caryophyllene. The aroma is described as strawberry preserves, red grape skin, and hibiscus-like tart florals dominate, with cotton candy, lychee, and sweet-dough roundness. when ground, a juicier candy-forward blast emerges with lemon-zest brightness and traces of lavender. in warm rooms, a subtle diesel whisper may appear from the purple diesel heritage. properly cured samples perfume a room immediately — like chilled rosé, fresh berries, and sugared petals.. The flavor profile features the inhale opens with strawberry-raspberry compote, red grape skin, and a lemon-candy flicker, veering into creamy sherbet and pastry cream at mid-palate. the exhale delivers fine-grained pink-pepper spice with floral echoes and a wine-like tannic finish. in joints, the candy profile deepens into jammy, tannic fruit with a wisp of pastry. vaporized at lower temps, lavender and tropical undertones become vivid; higher temps bring out caryophyllene spice and faint diesel grip..

What are the effects of Rozay?

Fast — cheerful, clear euphoria within 2-5 minutes. Mood lift accompanied by sensory enhancement. Opens with uplifting, sociable, clear-headed euphoria where the world feels brighter and more colorful. By 10-60 minutes, a warm body effect smooths tension in shoulders and lower back without heavy couchlock. Duration is typically 2-3 hours for flower, with residual calm persisting beyond the peak.. Commonly reported uses include Stress relief, Anxiety reduction, Mood elevation, Mild pain modulation.

How hard is Rozay to grow?

Rozay is rated moderate difficulty. It flowers in 8-10 weeks, reaches medium (1.5-2x stretch) in height, and yields 450-550 g/m² indoors. Best suited for indoor preferred; mediterranean outdoor/greenhouse environments.

Does Rozay turn purple?

Yes. Rozay is known to express purple coloration, with reported colors including green, purple, pink. Cooler nighttime temperatures during late flowering typically intensify anthocyanin expression.

What strains were bred from Rozay?

Rozay has been used as a parent in several notable crosses, including #1 Stunna, Frozay, Rotten Rozay, Blood Diamond, Blue Razzay. Its genetics contribute to a wide range of modern cultivars.

Has Rozay won any cannabis awards?

Yes. Rozay has received recognition including 3rd Place Indica Flower — Arizona Cannabis Awards Music Festival 2023 (22 Red); Strawberry Rozay Live Rosin entry — High Times Cannabis Cup Michigan 2023 — AU Non-Solvent Concentrates (Society C) — Rozay cross (Strawberry Rozay).

Sources & References (38)

Want to Grow Rozay?

Check our genetics menu for available clones or call us to discuss your growing needs.

View Genetics Menu Call (707) 841-7663