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Udawalawe
Uda Walawe
ActiveCannabis last recorded here in 2026
Satellite view of Udawalawe, Sentinel-2 cloudless mosaic by EOX, 2016.
⛶
Hierarchy
Gene Pool South Asian Gene Pool
Regional Complex Sri Lanka
Growing Region Southern Sri Lanka
Geography
Country Sri Lanka
Province/State Uva Province
District Monaragala District
Coordinates 6.455, 80.982
Landscape
Elevation 78 m
Terrain Lowland east of the Udawalawe reservoir and national park, with forest reserves
Climate
Climate Type Tropical, between the dry and intermediate zones
Rainfall 1,524 mm
Seasons Short rains (Feb–Apr), main rains (late Aug–Dec)
Growing history
Dated accessions 2024–2026
Dated news reports 2019–2024
Documentation
Appellations 1
Accessions 4
Conservation
Populations 1 documented
Field grade: 1 Data deficient
1 not yet assessed
Holdings Holdings: 1 Urgent
In a population 4 of 4 accessions
Seed lots 4 (4 Urgent)
Priorities Grow-out priorities



Udawalawe is a landrace cannabis growing area in Monaragala District, Uva Province, Sri Lanka, in the Southern Sri Lanka growing region. It lies on the eastern side of Udawalawe National Park and takes in the forest belt around Hambegamuwa, where police, the Special Task Force and the army have destroyed plantations since 2019; one found inside the Hambegamuwa Forest Reserve by drone in June 2024 held 187,857 plants.[1] Its accessions come from Kalawelgala, at 78 m.

Geography

Udawalawe National Park covers 308 km² and lies between Sri Lanka's dry zone and the intermediate zone.[2]: 23488 The cannabis destroyed in the area was found east of the park, around Hambegamuwa, inside the Hambegamuwa Forest Reserve and inside what the army called the Udawalawe Reserve.[1][3]

Climate

Mean annual rainfall in the national park is about 1,524 mm. Dry spells separate a short rainy period from February to April and a longer rainy season from the end of August to December.[2]: 23488 Across the island the south-west monsoon blows from May to September and the north-east monsoon from December to February.[4]: 17

Traditional cultivation

In July 2019 Hambegamuwa police raided a cultivation of about one acre that had been worked for some time, next to a nursery raising cannabis plants.[5] In April 2026 a plantation of about three acres inside the Udawalawe Reserve held some 155,000 plants about three feet tall.[3]

The collectors of the Udawalawe accessions reported that cultivation had been reduced by police pressure, by wild elephants that destroy the plants and by a local market flooded with ganja from India, sold under the name "Kerala Ganja".[6]

Appellations

Accessions

Accession IDNameLocalityElevationCollected
ZOM-SRI-UDA-0320260001Thanalmalwila 'Udawalawe' General Population 2026Kalawelgala78 m
ZOM-SRI-UDA-1020240001AUdawalawe General Population 2023Kalawelgala78 m
ZOM-SRI-UDA-1020240001BUdawalawe General Population 2023Kalawelgala78 m
ZOM-SRI-UDA-1020240001CUdawalawe General Population 2023Kalawelgala78 m

The accessions were collected at Kalawelgala, at 78 m, on 15 October 2024 and 12 March 2026, and belong to the Udawalawe population.[6]

Enforcement

Monaragala District recorded 1,378 cannabis-related arrests in 2024.[7] In July 2019 Hambegamuwa police arrested the owner of the one-acre cultivation.[5] On 10 June 2024 the Special Task Force used drones to find two plantations inside the Hambegamuwa Forest Reserve, of 187,857 and 6,725 plants; it arrested one man, handed 20 plants to the Hambegamuwa police as samples and burnt the rest where they stood.[1] On 11 April 2026 the Military Intelligence Corps and the Hambegamuwa police seized the three-acre plantation in the reserve, which the army valued at nearly Rs 4.5 million.[3]

Recent news

See also

References

  1. ↑ 1.0 1.1 1.2 "STF uses drones to locate ganja plantations inside forest reserve". The Sunday Times. Colombo. 11 June 2024.
  2. ↑ 2.0 2.1 Hemachandra, I. V. Dinithi; Wijayarathna, C. Dilrukshi; Dayawansa, P. Nihal (26 July 2023). "Proximate nutrients of selected forage and the diet composition of adult elephants in Udawalawe National Park, Sri Lanka, a preliminary study". Journal of Threatened Taxa. 15 (7): 23487–23498. doi:10.11609/jott.8416.15.7.23487-23498.
  3. ↑ 3.0 3.1 3.2 Sri Lanka Army (11 April 2026). "Based on Information Recived by Military Intelligence Corps Cannabis Cultivation Worth Rs. 4.5 Million Discovered". Sri Lanka Army. Retrieved 17 October 2026.
  4. ↑ Ministry of Environment (Sri Lanka) (September 2020). National Drought Plan for Sri Lanka (PDF) (Report). Retrieved 17 October 2026.
  5. ↑ 5.0 5.1 "Police raid ganja farm that spans across an acre of land". News 1st. 24 July 2019.
  6. ↑ 6.0 6.1 "Udawalawe". Zomia Collective. Retrieved 17 October 2026.
  7. ↑ National Dangerous Drugs Control Board (2025). Handbook of Drug Abuse Information in Sri Lanka 2025 (PDF). Rajagiriya: Research Division, National Dangerous Drugs Control Board. map 3, p. 54. ISBN 978-624-6011-11-6.