BlackBerry Runtz Strain Review (Runtz Cake x Blackberry Kush) — Effects, Grow Guide, Terps

BlackBerry Runtz (aka BlackBerry Runtz Cake) blends the sugary frost of Runtz Cake with the dark fruit power of Blackberry Kush. Expect purple-black buds, berry candy, and cream terps, and a deep indica stone that locks you into relaxation. Flowering time is 8–9 weeks, yields are medium to heavy, and the resin output makes it a dream for hashmakers.

Table of Contents

• Why BlackBerry Runtz Belongs in Your Garden
• Quick Facts (Specs)
• Strain Overview
• Lineage & Breeding Notes
• Flavor & Aroma (Terp Profile)
• Effects & Benefits
• Phenotypes
• How to Grow (Pro Guide)
• IPM & Troubleshooting
• Harvest, Dry & Cure
• Hashmaker Notes
• Comparisons
• Who Will Love It (and Who Won’t)
• User Reviews
• Buy BlackBerry Runtz Seeds
• FAQs

Why BlackBerry Runtz Belongs in Your Garden

Day 6 of the Croptober Chronicles had to be a dessert strain. BlackBerry Runtz is all about indulgence: dark purple buds coated in resin, berry-syrup nose, and candy-like sweetness with a knockout Kush punch. It’s eye candy for the jar, a crowd-pleaser in the sesh, and a strain that keeps extractors smiling.

Quick Facts for the BlackBerry Runtz Strain

• Genetics: Runtz Cake x Blackberry Kush
• Type: Indica-dominant hybrid
• Flowering Time: 8–9 weeks
• Yield: Medium–heavy (indoor); outdoor monsters
• THC: 22–28% (pheno-dependent)
• Terpenes: Myrcene, Caryophyllene, Limonene, Humulene
• Best For: Evening use, pain relief, sleep, extracts

Strain Overview

Visuals: Dense, chunky colas that often run deep purple to almost black, with neon-orange pistils and heavy frost.
Aroma: Berry candy with creamy Runtz sweetness and Kush gas.
Effects: Euphoric start that melts into heavy relaxation, perfect for winding down.
Grow Style: Indica dominance makes it manageable in tents; outdoors it thrives in sunny climates.

Lineage & Breeding Notes

Runtz Cake

A sugary, resin-rich cross with candy terps and euphoric energy. Adds frost, hype, and flavor depth.

Blackberry Kush

A classic indica known for dark purple buds and knockout sedation. Adds berry funk and body-heavy effects.

The Result

BlackBerry Runtz combines the dessert strain sweetness of Runtz with the deep relaxation of Blackberry Kush—an instant modern classic.

Flavor & Aroma (Terp Profile)

• Inhale: Sweet blackberry jam, candy shell, creamy frosting
• Exhale: Diesel funk, vanilla cream, earthy Kush
• Aftertaste: Lingering berry-gas mix with sugary edges

Dominant Terpenes

• Myrcene: Sedating, earthy smoothness
• Caryophyllene: Spice, peppery back end
• Limonene: Sweet citrus uplift
• Humulene: Herbal dryness

Effects & Benefits

Experience

First 10 minutes: Euphoric, sociable, appetite stimulation.
After 30–60 minutes: Body stone sets in, pain relief, relaxation.
Final stage: Couchlock, drowsiness, sedation.

Reported Benefits

• Chronic pain relief
• Stress & anxiety reduction
• Appetite stimulation
• Insomnia treatment

Oversmoke and you’re not “Netflix & chill”—you’re “Netflix & snore.”

Phenotypes

Pheno A — Runtz Lean

• Greener buds, sweeter nose, euphoric high

Pheno B — Blackberry Lean

• Darker buds, berry-fuel aroma, heavier sedation

Pheno C — Balanced Keeper

• Mix of candy + Kush, strongest bag appeal

How To Grow BlackBerry Runtz Like a Pro

Environment Targets

• Veg VPD: 0.9–1.1 kPa | Flower VPD: 1.2–1.5 kPa
• PPFD: 700–900 mid flower; up to 1000 late
• Canopy Temp: 75–80°F
• RH: 50–60% veg; 40–45% late flower

Feeding

• Moderate-heavy feeder
• PK boosters in mid-flower for density
• Organic soil enhances berry terps

Training

• Top early for multi-cola structure
• SCROG or LST for even canopy
• Defoliate weeks 3 & 6 flower

Yields

• Indoor: 450–550 g/m²
• Outdoor: Large yields with full-season sun

IPM & Troubleshooting

• Powdery Mildew Risk: Purple phenos dislike high humidity
• Botrytis: Dense colas need airflow and pruning
• Salt buildup: Flush lightly every 2–3 weeks in coco

Harvest, Dry & Cure

• Trichomes: Cloudy with 10–15% amber for max potency
• Dry: 60°F / 60% RH for 10–14 days
• Cure: 3–4 weeks unlocks berry-diesel finish

Hashmaker Notes

• Oily resin heads, great press returns
• Fruit terps carry through in rosin
• Expect deep purple hues in bubble hash

Comparisons

• Runtz: Sweeter, lighter—BlackBerry Runtz is heavier
• Purple Punch: Similar dessert vibes, less gassy
• Gelato 33: Creamy like Gelato, but denser body stone

Who Will Love It (and Who Won’t)

Perfect For

• Evening smokers
• Dessert-strain lovers
• Hashmakers

Skip If

• You prefer daytime strains
• You want energizing sativas

User Reviews

🌟 “Looked like black diamonds—my favorite nighttime strain.”

🌟 “Pressed rosin like blackberry syrup pancakes.”

🌟 “Best knockout indica in my jars. Sleep comes fast.”

BlackBerry Runtz FAQs

Is BlackBerry Runtz indica or sativa?

Indica-dominant hybrid with candy uplift and Kush sedation.

How long is the flowering time?

8–9 weeks indoors; outdoors early October in warm climates.

What does it taste like?

Sweet blackberry jam, candy frosting, diesel-cream finish.

Is it beginner-friendly?

Yes, but manage airflow and humidity to protect dense purple buds.

Good for hash?

Yes—resin is oily and berry terps survive pressing.

While we don’t currently have BlackBerry Runtz in stock, you can find related strains such as Runtz and Blackberry Fire. While you’re here, shop our complete collection of cannabis seeds.