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Killer Kush F1 Fast Feminised Seeds-SS-KLK-FAST-Fem
Killer Kush F1 Fast Feminised Seeds-SS-KLK-FAST-Fem
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Killer Kush F1 Fast Feminised Seeds-SS-KLK-FAST-Fem
Killer Kush F1 Fast Feminised Seeds-SS-KLK-FAST-Fem
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Killer Kush F1 Fast Feminised Seeds-SS-KLK-FAST-FemKiller Kush F1 Fast Feminised Seeds-SS-KLK-FAST-Fem
Killer Kush F1 Fast Feminised Seeds
Killer Kush F1 Fast Feminised Seeds
Seeds

Killer Kush F1 Fast Feminised Seeds

Average rating:  4.4   (votes: 27) Reviews (27)
SKU: SS-KLK-FAST-Fem
Very potent and fast flowering

Two legendary names. One exclusive strain.
Introducing Northern Lights 99

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Testimonial 
Author:  Kathy A. Rating: 5.0 out of 5 stars
Date:  30.05.2021
Text:  Just transplanted to the outside greenhouse Seeds germinate quickly and have grown quickly.

Flowering Type

Early/fast

Parental lines

OG Kush x Unknown 3rd Generation Autoflowering Hybrid

THC content

Very High THC (25%+)

CBD content

Low CBD (0-1%)

Photoperiod flowering time

6 to 8 weeks

Yield indoor

High Yield (450-600gr/m2)

Plant size

Medium

Suitable climates

Cool, Dry, High altitude, Hot, Temperate, Warm

From the breeder
Very potent and fast flowering
Sweet Seeds breeder notes
Aroma
EarthyFruity
Parental lines
OG KushUnknown 3rd Generation Autoflowering Hybrid
Very potent and fast flowering

Feminized and non-autoflowering version of one of the most famous strains from the West Coast of USA, developed around the year of 1994 in Sunset Beach, South California, the Ocean Grown Kush, better known as OG Kush.

With an ultra fast flowering, Sweet Seeds Killer Kush is the resulting hybrid from the cross between a selected 3rd generation auto-flowering genetic line leaning to the indica side and an elite clone of OG Kush. The result is a very potent plant with a very fast flowering.

This strain produces large and aromatic buds, all covered by a thick layer of resin. The aroma is sweet, citric and acid with exotic tones reminiscent of aromas from the Chem Dawg – Diesel family.

Brand/breeder
Parental lines
OG Kush x Unknown 3rd Generation Autoflowering Hybrid
Type
Indica dominant
Colour
Green
Flowering type
Early/fast
Sex
Feminised
THC potential
Very High THC (25%+)
CBD potential
Low CBD (0-1%)
Yield potential outdoor
High Yield (450-750gr/plant)
Yield potential indoor
High Yield (450-600gr/m2)
Plant size
Medium
Flowering time (photoperiod)
6 to 8 weeks
Northern hemisphere harvest
August, September
Southern hemisphere harvest
April, March
Suitable climate
Cool, Dry, High altitude, Hot, Temperate, Warm
Aroma
Earthy, Fruity
SKU
SS-KLK-FAST-Fem

Early/Fast outdoor timeline

Fast / Early strains keep the photoperiod growth pattern, but they begin flowering earlier and usually finish sooner — helping outdoor growers harvest before late-season weather becomes a problem.

Stage 1
Germination / Early Start
March – April
Wait for: warmer days, lower frost risk, stable spring weather
Watch for: cold snaps, excess moisture, slow early growth
Stage 2
Seedling / Transplant
May
Wait for: steady light, mild conditions, protected early growth
Watch for: transplant stress, pests, wind exposure
Stage 3
Vegetative Growth
June – July
Wait for: long bright days, healthy expansion, strong structure
Watch for: overcrowding, nutrient issues, insect pressure
Stage 4
Flowering
From late July
Wait for: first signs of bloom, good airflow, settled conditions
Watch for: humidity, mould pressure, poor weather
Stage 5
Harvest
From early September
Wait for: ripe trichomes, dense finished flowers, harvest readiness
Watch for: cutting too early, rain, bud rot
Fast / Early strains keep the photoperiod growth pattern, but they begin flowering earlier and usually finish sooner — helping outdoor growers harvest before late-season weather becomes a problem.

Indoor Early/Fast timeline

Fast / Early strains are most valuable outdoors, where earlier flowering and shorter bloom times help growers harvest before poor autumn weather. Indoors, their main benefit is a faster flowering phase than photoperiod versions.

Week 0
Germination
Healthy seedling emergence
Wait for: healthy seedling emergence
Watch for: overwatering, weak starts
Week 1–2
Seedling
Steady early growth
Wait for: steady early growth
Watch for: stretching, stress, excess moisture
Week 3–6+
Vegetative Growth
Desired plant size and strong structure
Wait for: desired plant size and strong structure
Watch for: overcrowding, uneven growth, training stress
6–10 weeks
Flowering Phase
Strong bud formation and steady flower development
Wait for: strong bud formation and steady flower development
Watch for: humidity issues, poor airflow, plant stress
Harvest
Harvest Window
Finished flowers and mature trichomes
Wait for: finished flowers and mature trichomes
Watch for: harvesting too early or pushing plants too long
4.4
Rating 4.4 out of 5 stars
Based on 27 ratings and 27 reviews
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Review author:  Darius Visockis    Review date:  01.09.2024
Review rating: 4.0 out of 5 stars
Verified
 buyer
Purchase date: 
Review text: 
Smoking right now, good plant for it speed but not best as expected seedsman website search
Review author:  Marc Buote    Review date:  08.02.2024
Review rating: 4.0 out of 5 stars
Verified
 buyer
Purchase date: 
Review text: 
Fast growing well so far no taste test to date
Reply from:  Seedsman (28.10.2026):  Thanks so much for taking the time to leave this review. We really appreciate it. Best Seedsman
Review author:  claude c.    Review date:  16.06.2021
Review rating: 5.0 out of 5 stars
Verified
 buyer
Purchase date: 
Review text: 
Maybe I won’t be 100% ready for September. I’ll keep you updated. See you soon, thanks.
Review author:  Kathy A.    Review date:  30.05.2021
Review rating: 5.0 out of 5 stars
Verified
 buyer
Purchase date: 
Review text: 
Just transplanted to the outside greenhouse Seeds germinate quickly and have grown quickly.
Review author:  Ruben T.    Review date:  21.05.2021
Review rating: 5.0 out of 5 stars
Verified
 buyer
Purchase date: 
Review text: 
Seeds from Swt Seeds are always amazing. The terpenes (aromas) are always dead on. Easy to grow.. light to med nutrients.
Please note that some customers choose to leave a rating without writing a review, and because of this the number of ratings will differ from the number of reviews.
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Seeds

Killer Kush F1 Fast Feminised Seeds

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