Flowering Type

Photoperiod

Parental lines

Razzleberry x PPD

THC content

Very High THC (25%+)

CBD content

Information not available

Photoperiod flowering time

6 to 8 weeks

Yield indoor

Information not available

Plant size

Information not available

Suitable climates

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

Got a question about this strain? Ask growers in the Seedsman Community.

Ask the Community ➜

From the breeder

Fast-flowering indica-dominant strain with big yields and an energising effect.

Humboldt Seed Co. breeder notes

Aroma

Fruity

Parental lines

RazzleberryPPD

Description

Fast-flowering indica-dominant strain with big yields and an energising effect.

Blueberry Muffin is a company favourite. This strain produces plants that grow uniformly producing frosty colas highlighted with purple flakes. The buds smell powerfully like fresh-baked blueberry muffins, making the name of this strain a piece of... muffin.

Indoor flowering takes just 45 days; outdoors it's ready in the 2nd. half of September. A high-yielding strain with an energising effect.

EMERALD CUP 2017 6TH PLACE!

Characteristics

Brand/breeder

Humboldt Seed Co.

Parental lines

Razzleberry x PPD

Type

Indica dominant

Colour

Green, Purple

Flowering type

Photoperiod

Sex

Feminised

THC potential

Very High THC (25%+)

Flowering time (photoperiod)

6 to 8 weeks

Northern hemisphere harvest

October, September

Suitable climate

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

Aroma

Fruity

SKU

HUMB-BBM-F

Grow guide

Photoperiod outdoor timeline

Photoperiod strains rely on seasonal daylight changes, so harvest timing is closely tied to your local climate.

Stage 1

Germination / Early Start

March – April

Wait for: frost risk easing, stronger spring light

Watch for: cold snaps, slow starts, excess moisture

Stage 2

Seedling / Transplant

April – May

Wait for: milder nights and settled weather

Watch for: transplant shock, wind exposure, pests

Stage 3

Vegetative Growth

June – July

Wait for: long days, regular feeding, healthy expansion

Watch for: overcrowding, nutrient issues, insect damage

Stage 4

Flowering

August – September

Wait for: shortening days, dry airflow, branch support

Watch for: mould, botrytis, high humidity, bad weather

Stage 5

Harvest

Late September – October

Wait for: ripe trichomes, dense finished flowers

Watch for: autumn rain, rot, early frosts

Indoor photoperiod timeline

Photoperiod strains give indoor growers more control over size, shape, and when flowering begins.

Week 0

Germination

Strong early establishment

Wait for: strong early establishment

Watch for: inconsistent starts, excess moisture

Week 1–2

Seedling

Stable structure and healthy growth

Wait for: stable structure and healthy growth

Watch for: stretch, early stress

Week 3–6+

Vegetative Growth

Desired plant size and canopy shape

Wait for: desired plant size and canopy shape

Watch for: overcrowding, uneven growth, training stress

7–12+ weeks

Flowering Phase

Strong flower formation and steady development

Wait for: strong flower formation and steady development

Watch for: humidity, airflow, support issues

Harvest

Harvest Window

Finished flowers and mature trichomes

Wait for: finished flowers and mature trichomes

Watch for: cutting too early or pushing too long

Reviews

Filter

We found matching review(s) Clear filters

Mike Kiel 21.02.2026

Flavour: Excellent Found Strain: Dispensary

buyer

Nice uniform grow. Awesome blueberry terps. Handled Western Washington humidity great.

As described: YesExpected Yield: AboveRecommend to others: Yes

Anonymous 08.12.2025

Flavour: Excellent Found Strain: Podcasts

buyer

Blue berry muffins flavour guaranteed!

As described: YesExpected Yield: ExpectedRecommend to others: Yes

Brian Ward 09.06.2025

Flavour: Excellent Found Strain: Seedsman Website

buyer

They are taking off nicely. The smell is so perfectly blueberry. They definitely have a stronger and fruitier smell than my other strains.

As described: YesExpected Yield: AboveRecommend to others: Yes

Dave Roush 16.02.2025

Found Strain: YouTube

buyer

All seeds popped and are growing strong. I have the trained and I. 3 gallon fabric pots. Leave have a heavy curl and thick. Looking fantastic for flower. Love the sweet aroma. .

Expected Yield: Above

Alan McCarthy 22.02.2024

Found Strain: Online Browsing

buyer

Great

Seedsman (30.10.2026): Thank you so much for the review. We really appreciate it. Best Seedsman

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.

Blueberry Muffin Feminised Seeds

Flowering Type

Photoperiod

Parental lines

Razzleberry x PPD

THC content

Very High THC (25%+)

Photoperiod flowering time

6 to 8 weeks

Suitable climates

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

Photoperiod outdoor timeline

Indoor photoperiod timeline

This week’s must-haves...

Blueberry Muffin Feminised Seeds