Black Jack
€4.00Price per seed · 35 offers
Critical Jack
Strain profile
- Genetics
- Hybrid
- THC
- 17–20%
- CBD
- 0%
- Seed type
- Feminized · Autoflower
- Flowering time
- 8–9 weeks
- Difficulty
- Moderate
- Height
- Tall
- Yield
- High
Missing or unreviewed data is not a verified measurement.
Lineage / genealogy
Recorded parents
- Jack Herer → Critical Jack
- Critical Plus → Critical Jack
Descendants & crosses
Offers
Offers shown are eligible for the selected delivery country. Confirm price and stock with the shop.
WeedSeedsExpress
| Shop | Pack | Price per seed | Stock | Offers |
|---|---|---|---|---|
| WeedSeedsExpressChecked Oct 20, 2026 | 12 seeds€49.00 pack price | €4.08 | In stock | See offer ↗ |
| WeedSeedsExpressChecked Oct 20, 2026 | 6 seeds€34.00 pack price | €5.67 | In stock | See offer ↗ |
| WeedSeedsExpressChecked Oct 20, 2026 | 3 seeds€24.00 pack price | €8.00 | In stock | See offer ↗ |
Blimburn Seeds
| Shop | Pack | Price per seed | Stock | Offers |
|---|---|---|---|---|
| Blimburn SeedsChecked Oct 20, 2026 | 25 seeds€177.49 pack price | €7.10 | In stock | See offer ↗ |
| Blimburn SeedsChecked Oct 20, 2026 | 9 seeds€73.99 pack price | €8.22 | In stock | See offer ↗ |
| Blimburn SeedsChecked Oct 20, 2026 | 6 seeds€57.49 pack price | €9.58 | In stock | See offer ↗ |
| Blimburn SeedsChecked Oct 20, 2026 | 3 seeds€30.99 pack price | €10.33 | In stock | See offer ↗ |
| Blimburn SeedsChecked Oct 20, 2026 | 1 seeds€11.99 pack price | €11.99 | In stock | See offer ↗ |
Silent Seeds
| Shop | Pack | Price per seed | Stock | Offers |
|---|---|---|---|---|
| SeedsmanChecked Oct 20, 2026 | 5 seeds€37.00 pack price | €7.40 | In stock | See offer ↗ |
| AlchimiaChecked Oct 20, 2026 | 5 seeds€37.00 pack price | €7.40 | In stock | See offer ↗ |
| AlchimiaChecked Oct 20, 2026 | 10 seeds€75.00 pack price | €7.50 | In stock | See offer ↗ |
| SeedsmanChecked Oct 20, 2026 | 3 seeds€23.00 pack price | €7.67 | In stock | See offer ↗ |
| ZamnesiaChecked Oct 20, 2026 | 3 seeds€23.00 pack price | €7.67 | In stock | See offer ↗ |
| AlchimiaChecked Oct 20, 2026 | 3 seeds€23.00 pack price | €7.67 | In stock | See offer ↗ |
Delicious Seeds
| Shop | Pack | Price per seed | Stock | Offers |
|---|---|---|---|---|
| HerbiesChecked Oct 19, 2026 | 10 seeds€75.00 pack price | €7.50 | In stock | See offer ↗ |
| HerbiesChecked Oct 19, 2026 | 5 seeds€42.00 pack price | €8.40 | In stock | See offer ↗ |
| AlchimiaChecked Oct 20, 2026 | 5 seeds€42.00 pack price | €8.40 | In stock | See offer ↗ |
| HerbiesChecked Oct 19, 2026 | 3 seeds€27.00 pack price | €9.00 | In stock | See offer ↗ |
| ZamnesiaChecked Oct 20, 2026 | 3 seeds€27.00 pack price | €9.00 | In stock | See offer ↗ |
| AlchimiaChecked Oct 20, 2026 | 3 seeds€27.00 pack price | €9.00 | In stock | See offer ↗ |
Crop King Seeds
| Shop | Pack | Price per seed | Stock | Offers |
|---|---|---|---|---|
| Crop King SeedsChecked Oct 20, 2026 | 25 seeds€214.00 pack price | €8.56 | In stock | See offer ↗ |
| Crop King SeedsChecked Oct 20, 2026 | 10 seeds€107.00 pack price | €10.70 | In stock | See offer ↗ |
| Crop King SeedsChecked Oct 20, 2026 | 5 seeds€57.96 pack price | €11.59 | In stock | See offer ↗ |
Related strains
Jack Flash
€8.56Price per seed · 7 offers
XJ-13
€5.33Price per seed · 6 offers
Dutch Crunch
€8.56Price per seed · 3 offers
J1
€8.56Price per seed · 3 offers
Jack Frost
€8.56Price per seed · 3 offers