Breeders claim. Growers log. We check.
Seed catalogs promise flowering times and yields nobody audits. StrainAudit aggregates public grow diaries — week by week, harvest by harvest — and compares what breeders claim against what real growers actually got.
Browse audited strains1,153
Real grows analyzed
15,735
Weekly log entries
598
Strains tracked
127
Strains with audit data
5
Claims verified so far
Most-audited strains
Runtz Seeds
✓ Claim verified- Grows
- 12
- Claimed
- 55–65d
- Observed
- 56d
Super Lemon Haze Fem
✓ Claim verified- Grows
- 6
- Claimed
- 70–77d
- Observed
- 61d
Gorilla Cookies Auto Seeds
○ Collecting data- Grows
- 6
- Claimed
- —
- Observed
- 61d
Runtz Auto (Barney's Farm) Seeds
○ Collecting data- Grows
- 5
- Claimed
- —
- Observed
- 46d
Mimosa Cake Auto Seeds
○ Collecting data- Grows
- 4
- Claimed
- —
- Observed
- 40d
Purple Kush Seeds
✓ Claim verified- Grows
- 4
- Claimed
- 55–60d
- Observed
- 60d
How it works
- We collect public grow diaries and their weekly logs from grower communities.
- Each diary is credibility-scored; only grows that reached a logged harvest count toward flowering-time stats.
- Observed numbers are compared against the breeder's published claims — the verdict on every page is computed, not written.
Full details, including everything we exclude, on the methodology page.