- Project 4516 is a hybrid Hybrid (Indica-dominant 60/40) strain originating from USA, dating back to 2022.
- Lab tests place its THC content at approximately 25-30%.
- Its lineage runs through Gelato #45 x Platinum Puff, making it a key reference point for breeders.
- 2 documented strains descend from Project 4516, including modern market favourites.
- Dominant terpenes: Caryophyllene, Limonene, Linalool — driving its signature aroma and effects.
About Project 4516
Project 4516 is a modern California exotic powerhouse created in Oakland by master breeder Mark McCafferty of Grandiflora Genetics, in partnership with Cookies. Combining the heavy-hitting Gelato #45 (Michael Jordan cut) with the resin-drenched Platinum Puff, Project 4516 showcases dramatic bag appeal: dense, spear-shaped flowers with dark ink-violet, nearly black calyxes smothered under a shimmering layer of bulbous trichomes. The aroma is intensely unique—unleashing an aggressive blast of chemical battery acid, pungent diesel fuel, sweet purple floral perfume, and creamy gelato dough. Consuming Project 4516 delivers a heavy, mind-fogging cerebral euphoria paired with deep, tranquilizing body relaxation.
Flavor Profile
The Story & Lineage Origin
🌲 1. Grandiflora Genetics' Oakland Breakthrough
In the late 2010s in Oakland, California, Mark McCafferty of Grandiflora Genetics crossed the potent Gelato #45 cut with Platinum Puff, selecting the standout phenotype numbered '4516'.
🖤 2. Inky Purple Calyxes & Chemical Floral Gas
The cultivar earned widespread acclaim for its near-black purple visual aesthetics and its polarizing, room-filling aroma of chemical fuel, floral perfume, and sweet cream.
👑 Modern Breeding Backbone: Project 4516 was featured prominently in Cookies dispensaries and became an essential breeding parent for modern exotic projects, including crosses with Gary Payton, Runtz, and Jealousy.
Seeds & Availability
Project 4516 was bred by Mark McCafferty / Grandiflora Genetics (Oakland), Cookies (Distribution Partner). Official seed packs from the breeder and authorized retailers sell out fast and are frequently counterfeited — verify pack authenticity (breeder logo, batch codes) before buying, and expect phenotype variation between packs.
Genetic Background
Gelato #45 (Sunset Sherbet x Thin Mint GSC by Sherbinski) crossed with Platinum Puff (Platinum OG lineage)
Phenotypes & Cultivars
Project 4516 is available in the following phenotypes and cultivars:
Terpene Profile
Project 4516 is dominated by Caryophyllene, Limonene, Linalool, along with 1 other minor terpenes. These compounds shape the strain's aroma, flavor, and reported effects.
Genetic Families
Project 4516 is part of the following genetic families:
Known Offspring
Strains that descend from Project 4516:
Frequently Asked Questions
What is the THC percentage of Project 4516?
Project 4516 typically tests at 25-30% THC content in lab results, though actual potency varies by phenotype, growing conditions, and harvest. As an indica-leaning strain, the THC produces a heavier body-driven effect.
Is Project 4516 a sativa or indica?
Project 4516 is an indica-dominant hybrid cannabis strain (Hybrid (Indica-dominant 60/40)). Bred from Gelato #45 x Platinum Puff, its effects lean toward a relaxing, body-driven indica experience. Users report: Relaxed, sedative, euphoric, heavy, powerful.
Project 4516 strain review — what to expect
Project 4516 is known for Relaxed, sedative, euphoric, heavy, powerful. Gelato #45 × Platinum Puff. Bred in Oakland, California by Mark McCafferty of Grandiflora Genetics, Project 4516 is an exotic titan with inky purple calyxes and pungent floral battery-acid gas. The aroma profile features gas, earth, fruit, skunk, spice. Dominant terpenes: Caryophyllene, Limonene, Linalool.
What is Project 4516 crossed from?
Project 4516 was bred from Gelato #45 x Platinum Puff. Detailed ancestry: Gelato #45 (Sunset Sherbet x Thin Mint GSC by Sherbinski) crossed with Platinum Puff (Platinum OG lineage). This cross produces the strain's characteristic effects, terpene profile, and growth pattern.
What terpenes are in Project 4516?
Project 4516 is dominated by Caryophyllene, Limonene, Linalool, with 1 additional minor terpenes. These aromatic compounds shape the strain's signature flavor, aroma, and contribute to its reported effects through the entourage effect.
How much does Project 4516 yield and how long does it flower?
Project 4516 has a flowering time of 8-9 weeks and produces moderate to high (450-520 g/m²) yields. Plants reach medium height, making it a versatile size for most indoor setups.
What is Project 4516 and where does it come from?
Project 4516 is an indica-dominant hybrid cannabis strain that originates from USA. It belongs to the 2020s era of cannabis genetics. Gelato #45 × Platinum Puff. Bred in Oakland, California by Mark McCafferty of Grandiflora Genetics, Project 4516 is an exotic titan with inky purple calyxes and pungent floral battery-acid gas.
What is the genetic background of Project 4516?
Project 4516 has the following ancestry: Gelato #45 (Sunset Sherbet x Thin Mint GSC by Sherbinski) crossed with Platinum Puff (Platinum OG lineage).
Is Project 4516 indica or sativa?
Project 4516 is an indica-dominant hybrid cannabis strain. Learn how in indica vs sativa classification differs in our strain guide.
What does Project 4516 smell and taste like?
Project 4516 has a Gas, earth, fruit, skunk, spice aroma, with flavors described as Gas, earth, fruit, skunky, spicy. Its dominant terpenes are Caryophyllene, Limonene, Linalool.
What are the effects of Project 4516?
Users report Relaxed, sedative, euphoric, heavy, powerful. As an indica-dominant strain, it leans toward relaxing body effects.
How strong is Project 4516? (THC & CBD content)
Project 4516 typically tests at 25-30% THC with low CBD. Strength always varies by grow and harvest.
Medical Applications
Project 4516 is commonly associated with: