Jamaican Pearl
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Jamaican Pearl

Sativa-dominant
Indica 15 % Breeder dataSativa 85 %

Jamaican Pearl is a sativa-dominant cross of Marley's Collie and Early Pearl from Sensi Seeds, bred so that a tropical sativa would still finish flowering in cool Northern Europe.

Research as of 09/27/2026

In a 2022 cultivation report published by Sensi Seeds, the cured buds of Jamaican Pearl carried notes of pineapple and citrus over an earthy sweetness, with a light spiciness emerging when smoked. The Dutch breeder crossed Marley's Collie with Early Pearl to create the strain and states a sativa share of 85 %. According to the breeder, the goal was a tropical sativa that would still finish flowering in the cool climate of Northern Europe.

Aroma and Flavor:

Sensi Seeds' product texts describe the profile as fruity and earthy with a tropical edge. Growers report their own variations: one outdoor account from Northern Europe noted a distinct scent of ripe lemons that carried through unchanged in the taste, while another grower picked up citrus and mango with a hint of diesel. Consumer reports mention a sour-sweet citrus note, occasionally herbs, earth, chocolate and berries, though spice was said to stand out above these. Strain descriptions list myrcene as the dominant terpene, followed by caryophyllene and limonene.

Genetics and Origin:

According to Sensi Seeds, the starting point was Marley's Collie as the mother plant. The breeder chose its own Early Pearl, a tropical sativa father, as the pollen donor; its offspring flower quickly and grow robustly while retaining the tropical aroma and an uplifting head effect. Pedigree information traces Marley's Collie back to a Jamaican sativa and Maple Leaf Indica, and Early Pearl to Early Girl and Pollyanna, a cross of Colombian and Mexican sativas. Some descriptions differ, naming a Jamaican indica as a parent and giving a ratio of 60 % sativa to 40 % indica.

According to Sensi Seeds, Jamaican Pearl took 1st place in the Supercup category at the Dutch Highlife Cup in 1999; the product pages refer to first prizes in 2 categories of the Highlife Festival. The strain is part of the lineage of 41 Palms, which Mario Guzman developed for the Voice of the Plant project run with Sensi Seeds from (Jamaican Pearl × DJ Short Blueberry) × Tropicana Cherry.

Effects:

User reports describe an uplifting, mood-lifting head effect, with consumers remaining talkative, creative and focused. Several growers emphasize that thinking stays clear; one report cites a duration of up to 6 hours, while another noticed a slight physical component toward the end. Sensi Seeds itself rates the effect as comparatively mild next to Haze strains. In contrast, some users reported brief paranoid moments and, at high doses, an unpleasantly psychedelic state. Reported side effects include dry eyes, dry mouth and dizziness.

THC Content:

Sensi Seeds states that it tested the buds from its 2022 cultivation report in its own laboratory. This single measurement returned 13.1 % THC. Other strain descriptions state 22 % THC, with one of them also listing 1 % CBG.

Cultivation:

For the regular seeds, Sensi Seeds gives a flowering time of 50 to 75 days, and 9 to 11 weeks under artificial light for the feminized version. According to the breeder, plants sown early can reach up to 3 m outdoors, flowering there from August to late September, and roughly 1 month later around the 50th parallel. Other strain descriptions place the outdoor harvest only in mid to late October and rate cultivation as moderately difficult. Sensi Seeds assigns the strain to a cool to cold climate. Because the plants gain considerably in height during flowering, the breeder advises sufficient ceiling height indoors and mentions SCROG, supercropping and lollipopping.

In the breeder's cultivation report, a single feminized plant grown under 600 W HPS light went from 30 cm in week 4 to 79 cm in week 8 over 21 days of vegetative growth and 75 days of flowering, yielding 113 g of dried buds. It stayed shorter and wider than pure sativas, but had wide internode spacing and long side branches. The buds were very dense and resinous, and the main cola tip bent under its own weight.

Community Experiences:

Outdoor reports from Europe are mixed. In one grow, pre-flowering began in late August and harvest took place from mid to late October; nights around 0 °C in mid-October caused no damage, and mold and pests were absent. A larger, fimmed plant yielded 100 g there, and a smaller one 50 g. Another grower harvested 30 g from a 70-liter pot and attributed this to sensitivity to rain. Reports on mold also conflict: alongside grows without any infestation, there is an account of buds becoming susceptible from October onward. One grower from Northern Europe considered the flowering time too late for the region and observed a more indica-leaning growth pattern with round, firm buds. Other reports extend the harvest as late as mid-November.

An outdoor grow documented in 2018 showed broad, roundish, light green leaves and heavy foliage at the nodes. The plant tolerated 3 fimming rounds without any notable setback in growth and entered pre-flowering in mid-August.

Versions from Different Breeders:

Besides Sensi Seeds, which offers regular and feminized seeds, Crop King Seeds sells a feminized Jamaican Pearl, also from Marley's Collie and Early Pearl, without referencing Sensi Seeds. Crop King Seeds states 8 to 10 weeks of flowering, an indoor yield of 400 g/m², 18 to 22 % THC and 1 % CBD for this version, and assigns it to a warm climate, whereas Sensi Seeds describes its strain for cool regions.

This article is for informational purposes only and is not a substitute for medical or therapeutic advice. If you have any health-related questions, please consult a doctor or another qualified professional.

Effects & aroma

From reviews and experience reports — subjective, not a medical statement

Reported as positive
focused50 %
energetic50 %
euphoric50 %
Reported side effects
dizzy50 %
paranoid50 %
dry eyes50 %
Aroma & flavor
Herbs 50 %
Mango 50 %
Spicy 50 %

Percentages: share of reviews mentioning this property.

Cannabinoids & terpenes

Levels vary by batch, phenotype and cultivation — values are indicative

THC
13.1 % Lab value (1 sample)
22 %additional figure
0 %35 %
CBG
1 %
0 %10 %
Terpene profile
  • #1
    MyrceneHerbs
  • #2
    CaryophyllenePepper
  • #3
    LimoneneCitrus

Cultivation

Indicative values from breeder data and grow reports — varies by phenotype and setup

Flowering & harvest
Breeder data
Flowering time
50–75 days
Outdoor harvest
Flowering August to late September, around 50° latitude about 1 month later · Northern hemisphere
Yield & height
Breeder data
Yield level
High
Height outdoor
up to 300 cm

In Sensi Seeds' cultivation report the plant grew from 30 cm (week 4) to 79 cm (week 8); no factor is given. The breeder only speaks of considerable growth during flowering.

Difficulty, environment & climate
Breeder data
Difficulty
Medium
Indoor
suitable
Outdoor
suitable
Climate
Cool

Sensi Seeds assigns the strain to a cool/cold climate zone; Crop King Seeds states a warm climate for its version.

Resistances
Breeder data
Cold
High
Morphology
Growth habit
Bushy
Internode spacing
Long
Bud structure
Dense
Trichome coverage
High
Leaf color
light green, broad, round leaves (one outdoor grow)

According to Sensi Seeds, bushier than most indoor strains; in the cultivation report shorter and wider than pure sativas, with wide internode spacing and long side branches; the main cola tip bent under its own weight. One outdoor grower described sturdy side branches with large colas, another round, firm buds.

Training
Topping
Tolerated
ScrOG
Recommended

Sensi Seeds mentions SCROG, supercropping and lollipopping for indoor growing; outdoor growers fimmed repeatedly (3 times in one grow) without noticeable growth setbacks.

Genetics & origin

Origin
Breeder data
Cross
Marley's Collie × Early Pearl
Origin
Nicaragua
Type
Sativa-dominant
Available as seeds
Regular, Feminized
Flowering types (all versions)
Photoperiod
Original breeder
Sensi Seeds
Awards
  • Highlife Cup 1999Supercup · Place 1

Versions by different breeders

Several breeders sell their own versions under this name. Each figure comes from the respective breeder.

Sensi SeedsJamaican Pearl
Original
PhotoperiodRegularFeminized
Flowering
50–75 days
Height outdoor
up to 300 cm

Regular seeds: flowering 50 to 75 days. Feminized version according to Sensi Seeds: 9 to 11 weeks flowering under artificial light, outdoor flowering August to late September, around 50° latitude about 1 month later. Yield stated only qualitatively as high, no THC or CBD figures from the breeder.

Crop King SeedsJamaican Pearl Feminized
Relation unclear
PhotoperiodFeminized
Flowering
8–10 weeks
Yield indoor
400 g/m²
THC
18–22 %
CBD
1 %

Also lists Marley's Collie × Early Pearl, without referencing Sensi Seeds. Height given as 5 to 8 ft, outdoor yield stated as 400 g/m² (not per plant), harvest in October, suited to a warm climate. THC given as 22 %, elsewhere as 18 to 22 %.

Lab results

Measurements of individual samples. Values vary by batch, cultivation and phenotype.

Flower · 2022Sensi Seeds (hauseigenes Labor)
THC13.1 %

Community

12 grow and experience reports reviewed Community reports
Consensus

Uplifting, mood-lifting head effect with a clear head, citrus-forward fruity aroma; vigorous growth outdoors in Europe and tolerant of fimming.

Divergent reports

Mold resistance disputed (no infestation vs. susceptible from October onward or sensitive to rain); outdoor yields from 30 g to 100 g per plant; flowering time judged too late for the north in some cases; harvests as late as mid-November; isolated reports of brief paranoia and an unpleasant effect at high doses.

Reported values from individual grows
Yield of a larger, fimmed outdoor plant
100 g
Yield of a smaller outdoor plant in the same grow
50 g
Outdoor yield in a 70-liter pot
30 g
Night temperature in mid-October without damage
0 °C
Duration of effect in one user report
up to 6 hours
Number of fimming rounds in an outdoor grow from 2018
3 rounds
Sensi Seeds cultivation report: vegetative phase
21 days
Sensi Seeds cultivation report: flowering duration
75 days
Sensi Seeds cultivation report: height at week 4 and week 8
30–79 cm
Sensi Seeds cultivation report: yield of one plant, dried
113 g
Sensi Seeds cultivation report: HPS lamp wattage
600 W

Grow diaries with this strain

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Similar strains

Related genetics, same dominant terpene, similar effects and aroma — excluding direct parents and descendants

Reviews (1)

ReviewReview the strain to help others
W33dM0nkey3/28/2026

Sehr fokussierende Wirkung, nicht zu anstrengend im Kopf, perfekt für ADHS im Alltag.

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