The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 5538Indica

Black Rose

Black Russian × Rosetta Stone × Shishkaberry × Nebula

Black Rose is a visually striking cannabis cultivar recognized for its deep purple to nearly black flowers and dense resin production. It is often described as a small family of related strains rather than a single, uniform cut, leading to some variability in reported characteristics. Despite this, it is consistently noted for its appealing appearance and potent, evening-leaning effects.

EffectsRelaxing Evening-leaning Potent
AromaFloralBerryGrapeLavenderPepperyFruityCandy

Appearance

Black Rose is characterized by its dark anthocyanin expression, often resulting in inky purple to near-black flowers, particularly when exposed to cooler temperatures late in the flowering cycle. The strain typically produces dense, spear-shaped colas with a calyx-forward structure. Its buds are known for heavy trichome coverage, giving them a frosty appearance, and the sugar leaves may exhibit burgundy streaks or purple mottling.

Aroma & Flavor

The aroma of Black Rose is a complex blend, often described as floral and berry-like, evoking its namesake. Initial notes commonly include sweet grape and ripe berry, layered over a hashy, spicy foundation. When ground, a rosy, tea-like nuance emerges, sometimes accompanied by subtle hints of lavender or lilac. The flavor profile often mirrors the aroma, presenting a sweet, fruity, and floral experience with a lingering peppery or spicy finish.

Effects

Black Rose is generally considered an evening-leaning hybrid, providing relaxing effects that are potent and suitable for unwinding. While specific effects can vary due to its nature as a cultivar family, users often report a calming sensation that promotes relaxation. The strain is known for its above-average bag appeal and consistent trichome production.

Terpenes & Cannabinoids

Black Rose typically exhibits medium to high THC levels, ranging from 15-25%, with minimal CBD content (<1%). Prominent terpenes often include Myrcene, Limonene, Caryophyllene, Linalool, and Humulene, contributing to its distinct aroma and potential effects. Myrcene-dominant phenotypes are associated with more sedation, while Limonene-influenced varieties may offer a slightly brighter experience.

Origins & Lineage

The origins of Black Rose trace back to underground breeders in the mid-to-late 2000s who aimed to enhance purple coloration without compromising potency. It is understood as a family of closely related cultivars, with multiple credible versions in circulation. Common genetic influences cited include Black Russian, known for its resin and dark colors, potentially crossed with vigorous, terpene-rich partners. Some lines may also incorporate genetics from Rosetta Stone, Shishkaberry, or Nebula, contributing to its fruity and floral characteristics.

Growing

Black Rose is typically a medium-statured plant with robust branching and a calyx-forward structure. Indoor flowering usually concludes in 8 to 9 weeks, with yields reported between 450-550 grams per square meter under optimized LED lighting. Outdoor plants can grow over 2 meters tall and are ready for harvest in early to mid-October in temperate climates. Achieving its signature dark coloration often requires cooler night temperatures in the late flowering stage.

Frequently asked questions

What are the key visual characteristics of Black Rose?
Black Rose is known for its striking dark purple to nearly black flowers, dense resin production, and frosty trichome coverage. Sugar leaves may also show purple mottling.
What is the typical aroma and flavor profile of Black Rose?
The aroma and flavor are often described as a blend of floral and berry notes, with hints of grape, and sometimes a spicy or peppery finish.
Is Black Rose suitable for beginners?
While its effects are generally relaxing, its potency and the need for specific conditions to achieve maximum coloration might make it more suitable for intermediate growers and consumers.
What contributes to the dark coloration of Black Rose?
The deep purple to black hues are due to anthocyanin pigments, which are often expressed more intensely when plants are exposed to cooler night temperatures during the late flowering stage.