The Official Cannabis Independent strain guides
Granddaddy Purple No 17 Shop
The Official Cannabis collection · sheet 17No 17 · Granddaddy Purplevs Grape Ape

Comparison

Granddaddy Purple vs Grape Ape

The two are easy to confuse, with reason: Leafly gives Grape Ape the same three parents it gives Granddaddy Purple, Mendocino Purps, Skunk and Afghani, and the Apothecary text on SeedFinder says GDP’s phenotypes have been known as Grape Ape.1,2,3 In state labs Grape Ape tests about the same: 18.42% median THC against 17.87% for Granddaddy Purple.4

Side by side

Granddaddy PurpleGrape Ape
TypeIndica (Leafly, Weedmaps); 70% indica per AllBud2,5,6Indica1
LineagePurple Urkle × Big Bud in most accounts; Mendo Purps × Skunk × Afghanistan per Leafly2,5,6Mendocino Purps × Skunk × Afghani (Apothecary Genetics, Barney’s Farm)1
Median THC (state lab tests)17.87% (512 tests)18.42% (202 tests)
Middle half of THC results15.00%–21.55%15.37%–21.25%
Top terpenes (median)Limonene, β-Caryophyllene, β-Myrcene (55 tests)β-Caryophyllene, α-Pinene, α-Humulene (99 tests)
Leafly top effectsSleepy, relaxed, hungry2Sleepy, relaxed, hungry1
FlavorGrape, berry, violet2Grape, berry, sweet1
Leafly orders, 2025#27Not in the national top 87

Lab rows come from the same state lab dataset and matching rules for both strains.4

Lab-tested THC: Granddaddy Purple vs Grape Ape

14% 16% 18% 20% 22% Grape Ape Grape Ape: median 18.42%, middle half 15.37%–21.25%, 202 tests 18.4% n=202 Granddaddy Purple Granddaddy Purple: median 17.87%, middle half 15.00%–21.55%, 512 tests 17.9% n=512 Median total THC (dot) and middle half of tests (bar)
Median and middle half of total THC in state lab tests.4

The same Green Cups?

The Apothecary text on SeedFinder’s Granddaddy Purple entry claims first prizes at the Green Cup in 2004, 2005 and 2006; Apothecary Genetics’ own history lists Grape Ape as its Seattle Green Cup winner in 2005 and 2006, and Leafly’s Purps history captions a 2014 Grape Ape a “child of GDP”.3,8,9 Grape Ape has its own guide in the Official Cannabis network at grapeape.com.

Which is easier to find

In Weedmaps snapshots from Oct 4, 2026 (Granddaddy Purple) and Oct 3, 2026 (Grape Ape), 56 stores within 50 miles of Los Angeles listed Granddaddy Purple flower on Weedmaps, against 62 stores for Grape Ape; around New York the counts were 58 and 27.10

More comparisons

Sources

  1. Leafly, Grape Ape strain information. Accessed Oct 4, 2026.
  2. Leafly, Granddaddy Purple (aka GDP) strain information. Accessed Oct 4, 2026.
  3. SeedFinder, Grand Daddy Purple (Unknown or Legendary): strain info and Apothecary breeder description. Accessed Oct 4, 2026.
  4. Cannlytics (CC BY 4.0), cannabis_results: public state lab results (filtered and aggregated by Official Cannabis). Accessed Oct 4, 2026.
  5. Weedmaps, Granddaddy Purple strain page. Accessed Oct 4, 2026.
  6. AllBud, Granddaddy Purple marijuana strain information and reviews. Accessed Oct 4, 2026.
  7. Leafly, The best-selling weed strains of 2025 (2026-02-02). Accessed Oct 4, 2026.
  8. Apothecary Genetics, Our story. Accessed Oct 4, 2026.
  9. Leafly, Pleased as Purple Punch: a ‘Purps’ family genealogy (Amelia Williams) (2021-04-08). Accessed Oct 4, 2026.
  10. Weedmaps listings, compiled by Official Cannabis, Weedmaps flower menu snapshot, 27 US markets, Oct 4, 2026. Accessed Oct 4, 2026. Latest capture Oct 4, 2026.