Blackberry Gum by Seedstockers

Blackberry Gum tastes like the candy aisle and grows like a workhorse. This indica-dominant feminized strain from Seedstockers combines sweet blackberry jam and bubblegum terpenes with 20–26% THC, huge harvests, and a bloom period of just 8 weeks, which is quick for a photoperiod with this much flavor.

The cross pairs Bubble Gum with Blueberry, two well-known names that each bring sugar-sweet aromatics to the table. Together they produce dense, resin-coated flowers that often show purple tinges toward the end of bloom.

Indoors, plants stay around 80–110 cm (31–43 in) and produce about 500–600 g/m² (1.64–1.97 oz/ft²). Outdoors, in warm climates, each plant can return 500–700 g (17.6–24.7 oz). That fast finish also means more harvests per year in a tent.

Seedstockers lists a 3rd place award for BHO at the Home Grown Cup for this strain, a nod to how well the resin holds up in extraction.

Lineage: Bubble Gum x Blueberry

Bubble Gum is famous for its unmistakable candy-pink sweetness, while Blueberry is a classic indica line known for deep berry aromatics and colorful flowers. Crossing them creates a terpene profile that sits somewhere between fruit jam and chewing gum.

Structurally, the indica side dominates. Plants grow sturdy branches, short internodes, and dense flowers that stack quickly once bloom is underway. The 8-week flowering window is one of the main reasons growers pick this strain over slower dessert varieties.

Aroma, Flavor, and Effect

Grind a bud and the first thing that jumps out is rich blackberry and bubblegum sweetness, backed by a light floral note. On the palate, that turns into blackberry jam and candy with a smooth, sugary finish, like a fruit-flavored hard candy dissolving on the tongue.

The effect creeps in rather than hitting all at once. A mellow head change comes first, then a smooth, full-body indica relaxation takes over. It is a strain for slowing down after work, enjoying a long dinner, or settling into a quiet evening.

At 20–26% THC, it is strong enough for experienced smokers, but the sweet flavor makes it easy to enjoy at a gentle pace.

Growing Blackberry Gum Indoors and Outdoors

Blackberry Gum is rated intermediate. The plant is sturdy and forgiving with nutrients, but its dense buds are prone to humidity problems, so airflow is the key to a clean harvest.

Indoors, veg until the canopy fills about half of the space, then flip to 12/12. Its lateral branching makes it a natural fit for SCROG, which spreads the tops evenly under the light and pushes yields toward 500–600 g/m² (1.64–1.97 oz/ft²). Final height usually stays between 80 and 110 cm (31–43 in).

A light defoliation around week 3 of flower opens the interior, improves light penetration, and lowers the risk of mold in the thickest colas. Keep fans moving air above and below the canopy.

Outdoors, Blackberry Gum performs well in warm, sunny regions and can grow large, reaching 500–700 g (17.6–24.7 oz) per plant. Watch the trichomes closely and harvest promptly once amber heads appear to keep the sweet flavor at its peak.

Blackberry Gum Characteristics

Strain type	Feminized
Genetics	Bubble Gum x Blueberry
Indica/Sativa	Indica dominant
THC	20–26%
Effect	Relaxing, smooth body high
Flavor	Blackberry jam, bubblegum, candy
Aroma	Blackberry, bubblegum, floral
Indoor yield	500–600 g/m² (1.64–1.97 oz/ft²)
Outdoor yield	500–700 g/plant (17.6–24.7 oz/plant)
Flowering time	8 weeks
Height	80–110 cm (31–43 in) indoors
Difficulty	Intermediate
Best cultivation technique	SCROG and light defoliation in week 3 of flower

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