92 Cookies
- THC
- 15–32%
- Flowering
- 8–10 wk
- Effect
- Energetic
- Difficulty
- Beginner
Blue Nightmare strain
Bred by RNM Flowers · Blue Dream × Tahoe OG
Strain facts
Checked Aug 13, 2026 · 3 sources
Blue Nightmare is a hybrid from RNM Flowers, bred from Blue Dream and Tahoe OG. Its THC is about 20%, milder than 54% of the 2,347 strains in our database that list THC.
Learn to grow Blue Nightmare: Indoor & Outdoor Growing course, $199
- Type
- Hybrid
- THC
- About 20%1 source
- Lineage
- Blue Dream × Tahoe OG
- Breeder
- RNM Flowers
3 sources for this profile
- Leafly public strain listing
- Weedmaps public strain listing
- Breeder information: RNM Flowers
CTU writes every profile from these facts; we do not copy other sites' descriptions. Values that are a generic default in the source data are left out. Last checked Aug 13, 2026.
Source: CTU strain dataset (public strain listings and breeder info, checked by CTU), verified Oct 2026. Potency, flavor and effects vary by grower, batch and plant. Facts no source lists are left out.
How to grow Blue Nightmare
The grow facts a breeder or public strain listing gives for Blue Nightmare.
- Outdoor harvest
- OctoberLater than 23% of strains with a listed month
Listed outdoor harvest (northern hemisphere)
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Source: CTU strain dataset, verified Oct 2026. Percentages compare with every strain in our database that lists the same fact.
Learn to grow Blue Nightmare: Indoor & Outdoor Growing course, $199
About Blue Nightmare
Blue Nightmare is listed in public strain databases as a hybrid attributed to RNM Flowers. Its listed parents are Blue Dream and Tahoe OG.
Blue Nightmare THC level
Blue Nightmare’s THC is about 20%, milder than 54% of the 2,347 strains in our database that list THC. Potency varies by grower, batch and lab, so read these numbers as typical values, not guarantees.
Blue Nightmare aroma, flavor and terpenes
Flavor notes reported for Blue Nightmare: berry and cheese.
Reported effects of Blue Nightmare
Commonly reported effects: giggly, happy, creative, talkative and relaxed. These are user reports, not promises. Effects differ from person to person and depend on dose, setting and tolerance.
Growing Blue Nightmare: what the data says
Outdoors in the Northern Hemisphere, harvest is listed for October. Grow where home cultivation is legal, and follow your state rules.
Blue Nightmare family tree
Its parents, from published lineage.
This strain
Blue NightmareHybrid · 20% THC
Similar strains
Matched on shared parents, top terpenes, type and THC. Never on medical use.
Banana Dream
- THC
- 23–31% · CBD 1–2.5%
- Flowering
- 9.5–10.5 wk
- Terpene
- Limonene
- Effect
- Talkative
- Difficulty
- Intermediate
Bay Dream
- THC
- 18–26%
- Flowering
- 9–10 wk
- Terpene
- Myrcene
- Effect
- Focused
Black Pearl
- THC
- 16–26%
- Flowering
- 8–10 wk
- Effect
- Energetic
- Difficulty
- Intermediate
Where to buy
Find licensed dispensaries in your state
Only state-licensed stores, checked against official license lists.
Grow it
Flowering time, height and difficulty from the sources, then the full method in the Growing course.
