Granddaddy Purple lab report

Washington is the strongest Granddaddy Purple state in this dataset: it had a 22.51% median and 81% of tests at 20% THC or above, while the full 512-test flower set reached 36% at 20%, 3.1% at 25% and 0.2% at 30%.¹

In Washington, 181 tests produced a 22.51% median and 81% were at 20% or more; in Michigan, 44 tests produced a 13.93% median and 4.5% met that threshold.¹ Market-level growers, labs and testing rules all sit inside that contrast.

Yes, but rarely: Granddaddy Purple reached the top single THC listing, 25% from ILGM, in 3.1% of tests, or about 1 in 32.^1,3 Across single-number THC claims, 1 of 3 sits above the lab median of 17.87%.¹

At the lower single figure, SeedFinder gave 16.5%; that cutoff was met by 62% of tests, about 6 in 10.^1,4 For ranges, the widest lab coverage came from the 19–28% range from Weedmaps at 43%, and the narrowest from the 20–23% range from United Cannabis Seeds at 23%.^1,5,6

For a package-level THC answer, use the certificate of analysis tied to that batch, not any database or seller figure.

No: Granddaddy Purple does not have a clear terpene leader, because limonene led 36% of 55 terpene tests, β-caryophyllene led 33%, and β-myrcene led 26%.¹

Leafly puts myrcene in front.⁷ In the tests, β-myrcene led 26%, behind limonene at 36%.¹

Nevada shapes the terpene picture because 45 of the 55 terpene tests were from that state, making these shares mostly a Nevada read.¹

Yes: Ice Cream Cake is tied for the nearest typical terpene mix to Granddaddy Purple, with 96% overlap; LA Kush Cake also scored 96%, Sherbet followed at 91%, and Durban Poison was lowest in the 36-strain pool at 42%.¹ Their lead terpenes are β-caryophyllene, limonene, β-caryophyllene and terpinolene, respectively.¹

To score pairs, we take the median level for each of eight terpenes, express those values as parts of their summed total, and add the common share between the two strains; identical mixes score 100. A strain enters this comparison only after 30 tests with named terpene results.¹ This is lab chemistry only; it does not forecast anyone's experience.

Among qualifying strains, Granddaddy Purple varies more than most, and its median still sits near the bottom: 17.87%, 50th among 52 strains, just below Tropicana Cherry (17.98%) and above Tropicana Cookies (16.80%).¹ At the 25% benchmark, 3.1% of tests qualified, placing Granddaddy Purple 47th.¹

Granddaddy Purple's middle-half range is 15.00%–21.55%, a span of 6.55 points; on spread, that is 43rd out of 52 eligible strains, pointing to more label-to-label variation than most.¹

Across batches from different growers and states, for Granddaddy Purple, the wide qualifying-lab gap mainly appears across states, with Lab G in Maryland at 14.93% and Lab B in Washington at 23.25% among 7 labs with at least 20 flower tests, a difference of 8.32 points.¹

Inside Maryland, the spread nearly closes: its 3 qualifying labs ranged from 14.93% to 16.56% and differed by 1.63 points, which puts most of the larger gap between states.¹

Different labs receive flower from different growers, so the separation is not evidence by itself that any lab reports high. This page masks lab identities, with Lab A assigned to the largest tester; the download uses the labs' names.

Yes: terpene weight is slightly higher in stronger Granddaddy Purple, with a 2.31% median at THC of 17.55% or above, compared with 2.11% for the low-THC third at 15.36% or below, a difference of 0.20 points.¹

State checks did not reverse it: 2 of 2 qualifying states were higher on the high-THC side (Maryland up and Nevada up), using the 30-pair minimum.¹ In Maryland, total terpenes were 2.36% for the lower-THC third and 2.60% for the higher-THC third.¹ Total terpenes quantify aroma compounds by weight; they are not an effects measure.

Yes: across eligible years, Granddaddy Purple moved upward from a 17.32% median in 2018 across 110 tests to 19.90% in 2023 across 48, giving +2.58 points overall.¹

Within Maryland, the strain also rose: 2018 had a 13.90% median and 2023 had 16.08%, for +2.18 points.¹ We leave out years below 20 tests when calculating this trend.¹

Concentrate is a large minority, not the main exact-name form for Granddaddy Purple: concentrates made up 32% of 921 lab results, while flower accounted for 553 (60%).¹ Other exact-name records were other or unrecorded (3.4%) and shake and trim (2.5%).¹ The site's THC, terpene and comparison calculations use the flower subset only.

161 more records added words around Granddaddy Purple, equal to 15% of all records containing the name; the biggest examples were “Stiiizy Infused Distillate Grand Daddy Purple Bulk” (21), “1g Vape | Buds Everyday | GDP” (12) and “Harlequin x GDP” (10).¹ Those longer labels are excluded because they can mark infused items, crosses or other variants; see our name-matching rules.

For the Oct 4, 2026 Weedmaps pull, Granddaddy Purple landed in the middle third: we counted 182 store listings carrying Granddaddy Purple flower inside 50 miles of each market's center, and the strain appeared in 13 of 27 markets, 29th of 58 tracked strains.²

Exact-eighth medians were mixed: $36.00 for Granddaddy Purple versus $25.00 for the typical same-menu strain in Los Angeles, CA; $29.10 versus $36.08 in New York, NY; $19.00 versus $30.00 in Seattle, WA; and $30.00 versus $25.00 in Portland, ME.² It was below the same-menu typical price in 2 of 4 comparable markets.²