| Name of the garden | Depth (inch) | Topography | pH |
| Kazi & Kazi Tea Estate | 0 - 5 | High flat | 5.65 |
| 5 - 10 | 5.70 | ||
| 10 - 15 | 5.55 | ||
| 15 - 20 | 5.40 | ||
| Zareen Tea Estate | 0 - 5 | Medium flat | 4.50 |
| 5 - 10 | 4.40 | ||
| 10 - 15 | 4.55 | ||
| 15 - 20 | 4.30 | ||
| Nurjahan Tea Estate | 0 - 5 | High flat | 4.40 |
| 5 - 10 | 4.50 | ||
| 10 - 15 | 4.00 | ||
| 15 - 20 | 4.10 | ||
| Malnichara Tea Estate | 0 - 5 | Tillah | 4.30 |
| 5 - 10 | 4.50 | ||
| 10 - 15 | 4.60 | ||
| 15 - 20 | 3.90 |