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Runtz XL Auto Feminised Seeds-SS-RUNTZXL-AUTO-FEM
Runtz XL Auto Feminised Seeds-SS-RUNTZXL-AUTO-FEM
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Runtz XL Auto Feminised Seeds-SS-RUNTZXL-AUTO-FEM
Runtz XL Auto Feminised Seeds-SS-RUNTZXL-AUTO-FEM
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Runtz XL Auto Feminised Seeds-SS-RUNTZXL-AUTO-FEMRuntz XL Auto Feminised Seeds-SS-RUNTZXL-AUTO-FEM
Runtz XL Auto Feminised Seeds
Runtz XL Auto Feminised Seeds
Seeds

Runtz XL Auto Feminised Seeds

Average rating:  3.8   (votes: 4) Reviews (3)
SKU: SS-RUNTZXL-AUTO-FEM
Sweet, fruity, potent auto-flowering strain with very high THC and high yields.

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

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R720.00
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Testimonial 
Author:  Traveler Rating: 5.0 out of 5 stars
Date:  23.05.2022
Text:  This is a good strain. It scores good numbers and all positive categories. I will without question Grow Again.

Flowering Type

Autoflowering

Parental lines

Runtz x Sweet Gelato Auto®

THC content

Very High THC (25%+)

CBD content

Low CBD (0-1%)

Autoflowering seed to harvest time

8 to 10 weeks

Yield indoor

High Yield (450-600gr/m2)

Plant size

Short

Suitable climates

Cool, Dry, Hot, Temperate, Warm, Wet

From the breeder
Sweet, fruity, potent auto-flowering strain with very high THC and high yields.
Sweet Seeds breeder notes
Aroma
Fruity
Parental lines
RuntzSweet Gelato Auto®
Sweet, fruity, potent auto-flowering strain with very high THC and high yields.

Runtz XL Auto is a taller auto-flowering strain created by crossing Runtz with Sweet Gelato Auto. This is an sativa/indica hybrid with high yields as well as high THC production - all in a short life span.

Runtz XL Auto plants grow to between 60 - 120 cm. tall and take just 8 weeks from the first pair of leaves through to harvest. Indoors growers will harvest 400 - 550 gr/m2 while those growing outdoors should obtain 50 - 175 gr./plant.

Rich in terpenes, Runtz XL Auto is intensely sweet and fruity and with very high levels of THC its effect is powerful yet well-balanced as befits its almost 50/50 sativa/indica genetics, mentally stimulating while being physically relaxing.

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Brand/breeder
Sweet Seeds
Parental lines
Runtz x Sweet Gelato Auto®
Type
Indica / Sativa hybrid
Colour
Green
Flowering type
Autoflowering
Sex
Feminised
THC potential
Very High THC (25%+)
CBD potential
Low CBD (0-1%)
Yield potential outdoor
Modest Yield (up to 200gr/plant)
Yield potential indoor
High Yield (450-600gr/m2)
Plant size
Short
Seed to harvest time (autoflowering)
8 to 10 weeks
Suitable climate
Cool, Dry, Hot, Temperate, Warm, Wet
Aroma
Fruity
SKU
SS-RUNTZXL-AUTO-FEM

Autoflowering outdoor timeline

Autos can be sown in multiple waves through the season for staggered harvests.

Stage 1
Germination
April – July
Wait for: warmer days, no frost, stable temperatures
Watch for: cold nights, overwatering, weak early light
Stage 2
Seedling / Transplant
1–2 weeks after sprouting
Wait for: strong light, mild weather, protected start
Watch for: slug damage, stretching, transplant stress
Stage 3
Vegetative Growth
Weeks 2–5
Wait for: long bright days, healthy root growth
Watch for: stunting, nutrient burn, pest pressure
Stage 4
Flowering
Weeks 5–8+ depending on cultivar
Wait for: steady sunshine, decent airflow, dry spells
Watch for: mould, heavy rain, snapped branches
Stage 5
Harvest
Weeks 8+ or summer to early autumn
Wait for: mature trichomes, swollen buds, finished aroma
Watch for: bad weather, bud rot, harvesting too early
Autos can be sown in multiple waves through the season for staggered harvests.

Indoor autoflowering timeline

Autoflowers follow their own internal clock, making indoor timelines easier to plan from seed to harvest.

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 2–5
Early Growth
Strong leaf and root development
Wait for: strong leaf and root development
Watch for: stunting, overcrowding, early stress
Week 5–9+
Flowering
Bud development and visible maturity
Wait for: bud development and visible maturity
Watch for: humidity issues, poor airflow, plant stress
Week 8–12+
Harvest Window
Finished flowers and mature trichomes
Wait for: finished flowers and mature trichomes
Watch for: harvesting too early

Autoflowers follow their own internal clock, making indoor timelines easier to plan from seed to harvest.

3.8
Rating 3.8 out of 5 stars
Based on 4 ratings and 3 reviews
Lipscore Real Reviews™ means all ratings and reviews are written by real customers, linked to real purchases, unedited, and verified by Lipscore. Click the logo to learn more.
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Review author:  Teresa Blankenship    Review date:  17.08.2024
Review rating: 1.0 out of 5 stars
Verified
 buyer
Purchase date: 
Review text: 
None of my seeds sprouted I have no plants
0vote(s)  
Externally verified 28.10.2026 This review has been collected with a review software used prior to Lipscore
Review author:  Gregory Hall    Review date:  14.08.2024
Review rating: 4.0 out of 5 stars
Verified
 buyer
Purchase date: 
Review text: 
All Poped up in 4 days, 2 sativa dominant 1 indica dominant.only week 4 and looking fantastic and strong
0vote(s)  
Externally verified 28.10.2026 This review has been collected with a review software used prior to Lipscore
Review author:  Traveler    Review date:  23.05.2022
Review rating: 5.0 out of 5 stars
Verified
 buyer
Purchase date: 
Review text: 
This is a good strain. It scores good numbers and all positive categories. I will without question Grow Again.
0vote(s)  
Externally verified 30.10.2026 This review has been collected with a review software used prior to Lipscore
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

Runtz XL Auto Feminised Seeds

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