Sweet Seeds - Black Muffin F1 Fast Version®

Breeder Slug: sweet-seeds
Strain Slug: black-muffin-f1-fast-version

Strain added by chris on 04/28/2026.

• Flowering time: 49 days (7 weeks)
• Genotype: mostly indica
• Is this is a autoflowering strain? No
• Can one get regular seeds? No
• Can one get feminized seeds? Yes
• Is this a clone-only strain? No
• Is this strain still available? Yes

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Strain description

This is an ultra-fast flowering, photoperiod-dependent, feminized strain that develops red flowers. Black Muffin F1 Fast Version® (SWS111) is a first filial generation (F1) cross between a photoperiod-dependent elite clone from our Red Hot Cookies® (SWS83) and the select autoflowering strain Black Lemon Auto.

The strain has a vigorous hybrid character and grows long side branches with thick, compact buds that are soaked with aromatic resin. The buds turn a dark purple color in the flowering stage, emitting a thick, potent, sweet-and-sour aroma with fresh citrus tones of lemons and mandarins, plus a tart undertone of red berries.

Black Muffin F1 Fast Version® has an intense yet balanced, relaxing, and happy effect that stimulates conversation and the imagination.

What are the properties of Black Muffin F1 Fast Version® photoperiod-dependent seeds?

Creativity: Promotes inspiration, free thinking, and artistic connection, ideal for enjoying creative activities.

Stimulating: Delivers a positive, energizing high that encourages conversation and social enjoyment without being overwhelming.

Relaxing: Provides a pleasant sense of physical and mental well-being, perfect for unwinding without losing clarity.

What are the effects of Black Muffin F1 Fast Version®?

In the mature flowers of Black Muffin F1 Fast Version®, we can find a THC content that ranges between 17% and 25%, with approximately 0.1% CBD. The synergy between these cannabinoids and the delicious terpenes produced by this strain results in an intense and well-rounded high. It begins with a stimulating effect that encourages dialogue and creativity, then gently transitions into a soothing body relaxation. It’s an excellent choice for social gatherings, artistic projects, or simply enjoying the moment with a smile.

What are the flavors of Black Muffin F1 Fast Version®?

Fresh citrus notes of lemon and mandarin.

Sweet and sour, fruity undertones that linger on the palate for several minutes.

Slightly acidic hints of red forest fruits.

Plant Morphology

Structure: With a 60% Indica and 40% Sativa genetic makeup, this exceptional photoperiod-dependent strain develops sturdy plants with long side branches that hold thick, compact buds. In approximately 60 % of the plants, the flowers take on reddish or deep purple tones during flowering.

Genetic Development: In the development of Black Muffin F1 Fast Version®, we used an elite clone of Red Hot Cookies® with a selected autoflowering genetic line of Black Lemon Auto. This combination preserves the best attributes of both parental lines: red flowers, ultra-fast flowering, complex aromas, and a well-balanced effect.

Indoor Yield: When grown indoors under artificial lighting, with the optimal growing parameters for this strain, Black Muffin F1 Fast Version® can produce between 500 and 600 grams of dried buds per square meter.

Outdoor Yield: When grown outdoors with ample sunlight, with a good quality soil mix and adequate nutrition, this strain can yield between 400 and 600 grams per plant.

Awards of Black Muffin F1 Fast Version®

Black Muffin F1 Fast Version® was released by Sweet Seeds® in February 2024. We are confident that its outstanding quality will soon be recognized at various cannabis events. We encourage you to be among the first growers to showcase it at a cup.

Recommended for Collectors Who:

We recommend our Black Muffin F1 Fast Version® to collectors of fast-flowering photoperiod-dependent genetics looking for red-flowered strains with high THC content and fruity, citrusy aromas. Perfect for those who enjoy intense flavors, balanced effects, and visually stunning plants.

Data Sheet Black Muffin F1 Fast Version®

• Variety: SWS111
• Indica: 60% / Sativa: 40%
• THC: 17-25% / CBD: 0,1%
• Indoor Yield: 500-600 g/m²
• Outdoor Yield: 400-600 g/plant
• Indoor Blooming: 7 weeks
• Purple Flower: approx. 60% of the specimens
• Effects: stimulating, creativity, relaxing
• Aroma: sweet and sour, citrus, lemon, mandarine, berries

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Growlogs

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