Growing Agent Orange: flowering time, yield and breeder specs

Seed versions of Agent Orange flower in about 55–65 days, Leafly gives 55 days, and the plant is tall: the TGA-era description says it tops 10 feet outdoors in northern California. Yields are heavy but arrive late, and growers are told to top and train it into a bush.^1,2,3,4

Breeder and database specs side by side

Source and version	Flowering	Indoor yield	Outdoor	Difficulty
TGA-era breeder description (via SeedFinder), regular seed	55–65 days	“Very heavy but all in last weeks”; flat-topped colas	Over 10 ft in northern California; top and train into a bush¹	—
Philosopher Seeds, F2 regular (via SeedFinder)	55–65 days	600 g/m²	About 500 g per plant; end of September to early October²	“Ease of cultivation” (seller’s words)²
Weedmaps (strain page)	About 55–65 days	Up to 600 g/m²	About 500 g per plant; late September to early October³	—
Leafly (strain page)	55 days	High	Tall⁴	Moderate⁴
MzJill Genetics, F2 and S1 feminized	—	Large	Tall; resinous, spear-shaped colas^5,6	—
Oregon Genetics Cannabis, clone (2017 catalogue)	8–9 weeks	Medium/high	—⁷	—
Wikileaf	55–65 days	Heavy; fills out in the final two weeks	Up to 10 ft; needs topping⁸	—

Seed-company and clone-seller figures are the sellers’ own claims; Weedmaps’ and Philosopher Seeds’ numbers coincide and may share a source.

What the plant is like

Expect a tall, stretching plant that builds large, flat-topped colas and dense, resinous buds, with two described phenotypes: one short and thick, one taller and more resinous.^1,3 MzJill describes resinous, spear-shaped colas and foliage that can turn burgundy to almost black on some phenotypes; the TGA-era description and Leafly both note maroon and purple pigments, which the breeder description ties to cool nights.^1,4,5

What to watch for

Timing. The TGA-era description says the very heavy yield comes “all in last weeks”, and Wikileaf says the buds fill out in the final two weeks, so an early harvest costs most of the crop; both say to top and train the plant.^1,8 None of the sources we opened says anything about mold or pest resistance.

Seeds and the law in the US

Under the amended federal definition of hemp, viable seeds from cannabis plants above 0.3% total THC, including THCA, are not hemp.⁹ Congress delayed that exclusion, with most of the new definition, from Nov 12 to Dec 11, 2026; only the exclusion of products with cannabinoids the plant cannot produce naturally starts on Nov 12.¹⁰ Home cultivation rules are set by each state. This site does not sell seeds.

Sources

SeedFinder, Agent Orange (MzJill Genetics): strain info, breeder description and awards. Accessed Oct 3, 2026.
SeedFinder, Agent Orange (Philosopher Seeds): strain info and breeder description. Accessed Oct 3, 2026.
Weedmaps, Agent Orange strain page. Accessed Oct 3, 2026.
Leafly, Agent Orange (Agent O) strain information. Accessed Oct 3, 2026.
MzJill Genetics, Agent Orange F2. Accessed Oct 3, 2026.
MzJill Genetics, Agent Orange S1 (feminized). Accessed Oct 3, 2026.
Oregon Genetics Cannabis, Clone catalogue: Agent Orange cultivar specifications (2017). Accessed Oct 3, 2026.
Wikileaf, Agent Orange strain. Accessed Oct 3, 2026.
Congressional Research Service, Changes to the statutory definition of hemp and implications for agricultural policy (IF13136) (2026-09-28). Accessed Oct 3, 2026.
U.S. Government Publishing Office, Continuing Appropriations and Extensions Act, 2027 (H.R. 6500, enrolled), sec. 2019. Accessed Oct 3, 2026.