RSC-GRC-RET-0119900001

1990 RSC Cretan IBL
RSC-GRC-RET-0119900001
Cretan in flower (photograph from the RSC listing)
At a Glance
Classification	Landrace IBL
Accession Type	Reproduction
Primary Purpose	Recreation
Flowering time	11–12 weeks
Plant height	3–4 m
Photoperiod response	Short-day
Aroma	Herbal, earthy, woody, eucalyptus, helichrysum, turmeric, dittany
Effects	Intense, calming, long-lasting, slight body effect
Botanical Characteristics
Branching	Strong
Processing
Method	Ganja
Notes	Bud or dry-sieved hashish
Location
Country	Greece
Province/State	Rethymno
Collection
Method	Seeds
Sourcing Type	Multi-generation reproduction
Autochthonous	No
Date	Early 1990s
Conservation
Main lot	The Real Seed Company Seed lot: Urgent grow-out history grow-out history: grown out; isolation not recorded Next: Do not queue for routine sowing: isolation not recorded or pollen known to have got in; Test for the first time; Confirm whether a backup exists as of 2026-11-05 · method v0.2
Introgression	Minimal
Cultivation
Status	Unknown
System Type	Unknown
Cycle 1 Harvest	Mid October–Late October
Preservation
Seed Storage	The Real Seed Company
Genebanks and Sequence Data
Genebank accessions USDA NPGS G 33701
Genetic Relationships
Reproduction of Cretan General Population 1990

1990 RSC Cretan IBL is a landrace cannabis accession from Rethymno on Crete, Greece, listed as Cretan in the seed catalogue of The Real Seed Company (RSC). RSC classifies the line as both a landrace and an heirloom and names Delicorganic as the source of its seed. Kwik Seeds, which RSC calls its other site, lists the same line as a Greek-Cretan drug-type domesticate. The Real Seed Company offers the line for sale on its Kwik Seeds site (checked 17 October 2026).

Geography

The listings trace the seed to the mountainous region of Rethymno, at a latitude of about 35° N. According to RSC, the line is adapted to conditions in the mountainous regions of Crete, where summer days reach 40 to 45 °C and strong winds blow at elevations of 400 to 500 metres.

Collection Details

RSC states that the seeds were collected in the early 1990s, and both listings give Delicorganic as the source of the seed; that collection is recorded at Cretan General Population 1990. Neither names the original collector or says how many generations the line has been grown since collection. RSC files Cretan among its heirlooms, a category it defines as inbred lines that have undergone generations of selective inbreeding in the West.

In August 2023 Angus gave a packet of Cretan seed to the U.S. National Plant Germplasm System. The system holds the seed as accession G 33701 at its Plant Genetic Resources Unit in Geneva, New York.

Cultivation Details

RSC describes a long tradition of guerrilla cannabis cultivation on Crete. According to the listing, farmers planted on rocky slopes to avoid police helicopters. RSC reports that the plants adapted in turn to growing untended in rocky soil with little water and no fertiliser. It attributes the vigour of the line and its tolerance of environmental stress to these methods.

RSC reports that outdoors on Crete the line finishes in the second half of October after 11 to 12 weeks of flowering. It gives an outdoor yield of 500 to 600 grams of dried flowers per plant.

Botanical Characteristics

RSC reports that the plants stretch less than a pure Sativa and can reach 3 to 4 metres, with strong branching and short internodes. RSC gives the height as up to 4 metres and Kwik Seeds as 3 to 4 metres. RSC lists light-green to gold flowers.

RSC gives the line's purpose as bud or dry-sieved hashish; Kwik Seeds gives bud or hashish. Both descriptions add that Cretan is cultivated for bud production, although the line has many characteristics of the hash-plant type.

RSC reports a complex cannabinoid profile that includes minor cannabinoids, with medium-high THC of 10 to 13 per cent and markedly low CBD. RSC links a genotype report on Delicorganic's Cretan line published by Phylos. According to RSC, the report indicates a very rare landrace genotype with no known direct relatives.

Aroma

RSC lists herbal, earthy and woody aromas with eucalyptus, helichrysum, turmeric and dittany. It describes the taste as hashy and herbal.

Effects

RSC compares the effects with those of other Greek cultivars such as Kalamata Red: energetic and creative in small doses but intense, calming and mildly trippy in larger ones. It summarises the high as intense, calming and long-lasting, with a slight body effect.

Smoke Reports

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Gallery

• 
  A dense stand of Cretan plants (RSC listing)
• 
  Resinous Cretan flower (RSC listing)
• 
  Flowering Cretan branches (RSC listing)
• 
  Cretan branches in flower, photographed at night (RSC listing)
• 
  Cretan seed (Kwik Seeds listing)

See Also

• Cretan General Population 1990
• Landrace Cannabis
• The Real Seed Company
• 2005 RSC Arcadian IBL