Fastberry Bastard Breeding Logs

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Fastberry Bastard: breeding history

Fastberry Bastard — Blueberry Bastard F4 × Bastard Ryder, P to F1

Breeding history / 2025–2026

Fastberry Bastard is a photoperiod Fast version of Blueberry Bastard: an F1 hybrid of selected Blueberry Bastard F4 and autoflowering Bastard Ryder. These five logs look back at the parent selection and seed production that led to its regular and feminized releases.

Cross
Blueberry Bastard F4 × Bastard Ryder
Latest update
Regular and feminized versions released

Breeding history

The stages below were completed before this account was published.

StageWork completedWhenStatus
SelectionBlueberry Bastard F4 seeds were sown, plants assessed and cuttings taken from the mothers. Clones remained in vegetative growth.October 2025–February 2026Completed
P → F1Blueberry Bastard F4 × Bastard Ryder seed production yielded regular and feminized F1 Fastberry Bastard seeds.March–April 2026Completed

Log 01 / The starting point · October 2025

Picked from the Same Patch

The mother of Fastberry Bastard was Blueberry Bastard F4 from 7East Genetics, a photoperiod line. The father was Bastard Ryder, developed by mutantfarmer. The father’s autoflowering did not express in the first generation: Fastberry Bastard remained photoperiod.

The ABC (Australian Bastard Cannabis) leaf was present in both parents. They also shared an ancestor: Drunken Bastard from 7East Genetics appears in both pedigrees.

Who chose the pair

Joint Doctor and mutantfarmer chose the genetics for Fastberry Bastard and agreed on the cross together. The strain was released through the Be a Breeder program as a collaboration between Doctor’s Choice and mutantfarmer.

How mutantfarmer bred Bastard Ryder

In 2022, mutantfarmer crossed Drunken Bastard F3 with Lowryder. From F1, he kept females BR#3 and BR#12 and male BR#6. He then selected plants that combined autoflowering with the ABC leaf, working in two branches named after the mothers, and advanced the line to F5 seeds.

His harvest records listed a blueberry aroma in all three F4 plants from branch #12.

Read the full Bastard Ryder breeding reports at mutant.farm ↗

Log 02 / Sowing · October–November 2025

Reading the Leaves

The ABC leaf was visible in Blueberry Bastard F4 from the first true leaves.

The 7East side

According to 7East Genetics, the aim behind Blueberry Bastard was to combine the blueberry and skunk aroma of Blueberry Dragon Fire with the ABC leaf from Drunken Bastard.

Drunken Bastard F3 and Blueberry Dragon Fire Bx2 were crossed in both directions, and the two branches were brought together in F1. Deemu, a friend of the 7East team, selected a pair of F1 plants with a blueberry aroma and no citrus notes. The ABC leaf reappeared in F2. Plants without it were removed, while the remaining 70 finished flowering outdoors and pollinated one another. The next generation was selected indoors at 7East that winter, and F4 was tested outdoors throughout 2023.

From seedlings to a closed canopy

In mid-October 2025, the seedlings stood in square pots on a tray. Their first true leaves were small and rounded, without serrations along the edges.

Blueberry Bastard F4 seedlings in square pots with ABC first true leaves
Blueberry Bastard F4 seedlings with ABC first true leaves, mid-October 2025.

By late October, the pots had been spaced across the tent on individual trays. The young plants had glossy ABC leaves.

Young Blueberry Bastard F4 plants in individual trays at the start of selection
Young Blueberry Bastard F4 plants at the start of selection, late October 2025.
A young Blueberry Bastard F4 plant with glossy ABC leaves
A young Blueberry Bastard F4 plant with ABC leaves, late October 2025.

In early November, plants of another strain with conventional leaves stood beside them in the tent. The difference was immediate: Blueberry Bastard F4 had small, smooth leaflets on slender petioles, while its neighbors carried large palmate leaves with serrated edges.

Blueberry Bastard F4 plants with ABC leaves beside another strain with conventional leaves
Blueberry Bastard F4 and neighboring plants of another strain with conventional leaves, early November 2025.

By late November, the plants had formed a continuous canopy. They had not yet begun flowering.

Overhead view of the Blueberry Bastard F4 canopy in vegetative growth
Blueberry Bastard F4 in vegetative growth, viewed from above, late November 2025.

Log 03 / Cuttings · December 2025

Take It from the Top

By early December, the Blueberry Bastard F4 mother plants had grown into large bushes in vegetative growth. Cuttings were taken the following day and placed in peat plugs to root.

The mothers had long, thin branches, with rosettes of ABC leaves at the ends of long petioles.

A large Blueberry Bastard F4 mother plant in vegetative growth
A Blueberry Bastard F4 mother plant in vegetative growth, early December 2025.
Branch tips of a Blueberry Bastard F4 mother plant with rosettes of ABC leaves
The mother plant’s branch tips with ABC leaves, early December 2025.

A rosette on every cutting

The cuttings came from branch tips, each retaining a rosette of ABC leaves.

Blueberry Bastard F4 cuttings arranged on a surface
Blueberry Bastard F4 cuttings, early December 2025.
A Blueberry Bastard F4 cutting held in a peat plug
A Blueberry Bastard F4 cutting in a peat plug, early December 2025.

Log 04 / Selection · January–February 2026

Judged in Bloom

Selection among the Blueberry Bastard F4 plants ran from mid-October 2025 into early February 2026. By late January, about two months after cuttings were taken, a plant from the selection was in flower. Most of its pistils had browned, its petioles were pink-red, and the ABC leaves remained visible in flower.

A flowering Blueberry Bastard F4 plant from the selection with pink-red petioles
A Blueberry Bastard F4 plant from the selection in flower, late January 2026.

In early February, a flower cluster on a plant from the selection had orange and pink pistils, with trichomes covering the calyxes.

A Blueberry Bastard F4 flower cluster with orange and pink pistils and trichomes
A flower cluster from a Blueberry Bastard F4 plant in the selection, early February 2026.

Meanwhile, the clones

The clones remained in vegetative growth through late January and filled the tent. While they grew, plants from the selection could be assessed in flower.

Blueberry Bastard F4 clones filling a tent in vegetative growth
Blueberry Bastard F4 clones in vegetative growth, late January 2026.

The next stage was seed production with Bastard Ryder.

Log 05 / P → F1 · March–April 2026

Bearing Fruit

Bastard Ryder was the father in the seed production run. This cycle produced both regular and feminized F1 seeds. The feminized seeds were produced in the box: a female donor with open male flowers pollinated the Blueberry Bastard F4 mothers and female Bastard Ryder F5 plants growing there.

The run took place indoors under a 650 W LED with drip irrigation. The plants grew in Terra Aquatica soil and grow bags, with Powder Feeding Hybrids and Terra Aquatica nutrients.

The tent in flower

By late March, the plants in the run were flowering. The canopy was continuous, the colas were covered in trichomes, and ABC leaves sat at the ends of long, bare petioles. Some of the larger leaves had yellowed.

Flower clusters in the Fastberry Bastard seed production run
Flower clusters in the seed production run, late March 2026.
Colas in the Fastberry Bastard seed production run with ABC leaves on long petioles
Colas in the seed production run, with ABC leaves on long petioles, late March 2026.

By early April, more of the pistils in the tent had browned.

Overview of the flowering Fastberry Bastard seed production tent in early April
The seed production tent in flower, early April 2026.

Swollen calyxes

In mid-April, cut flower clusters from the run were photographed in the studio. Their calyxes had swollen with F1 seeds. The pistils were orange and pink, and ABC leaves remained on long, pale petioles. Three weeks separated the flowering tent photographs from late March and these cut flower clusters.

A cut flower cluster from the Fastberry Bastard seed production run against a dark background
A cut flower cluster from the seed production run, mid-April 2026.
Close view of swollen calyxes carrying F1 seeds in the Fastberry Bastard cross
Swollen calyxes with F1 seeds, mid-April 2026.

F1 seeds in hand

The P → F1 run was complete, producing regular and feminized F1 Fastberry Bastard seeds. Six months had passed from the start of selection to the seeds.

Both the regular and feminized versions of Fastberry Bastard were released and are available from Doctor’s Choice. This completed the work on the line.

Explore regular seedsBrowse the regular seed collection.

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