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Fastberry Bastard: breeding history
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.
| Stage | Work completed | When | Status |
|---|---|---|---|
| Selection | Blueberry Bastard F4 seeds were sown, plants assessed and cuttings taken from the mothers. Clones remained in vegetative growth. | October 2025–February 2026 | Completed |
| P → F1 | Blueberry Bastard F4 × Bastard Ryder seed production yielded regular and feminized F1 Fastberry Bastard seeds. | March–April 2026 | Completed |
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.
By late October, the pots had been spaced across the tent on individual trays. The young plants had glossy ABC leaves.
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.
By late November, the plants had formed a continuous canopy. They had not yet begun flowering.
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 rosette on every cutting
The cuttings came from branch tips, each retaining a rosette of ABC leaves.
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.
In early February, a flower cluster on a plant from the selection had orange and pink pistils, with trichomes covering the calyxes.
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.
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.
By early April, more of the pistils in the tent had browned.
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.
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.
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