The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 2919Indica

4k by Silver River Seeds

Unknown

4K is a predominantly indica cannabis cultivar developed by Silver River Seeds, recognized for its ability to produce resin-rich plants with a consistent structure. This strain aims for high-definition appeal, reflected in its clean appearance and polished terpene expression.

May help withAnxiety
AromaChocolateCoffeeEarthyWoodyHerbalCitrusPine

Appearance

4K presents as a compact plant with broad, dark green leaves and tightly spaced nodes. The buds are typically dense, shaped like golf balls or small cans, and feature a high calyx-to-leaf ratio that simplifies trimming. Mature flowers can display lime to forest green colors, sometimes with deep purple streaks, and are heavily coated in trichomes, giving them a frosted appearance.

Aroma & Flavor

The aroma of 4K is complex, with initial notes of sweet earth and aged wood, complemented by deeper scents reminiscent of cocoa or roasted coffee. A subtle herbal spice, like clove or peppercorn, is often detected, along with a hint of citrus that becomes more apparent when the buds are broken apart. Upon consumption, flavors include nutty earth and cocoa nibs, with undertones of cedar and pine resin. A warm spice and light citrus glaze emerge mid-palate, leading to a woodsy, soothing exhale with a lingering cocoa and pepper finish.

Effects

Users commonly report that 4K induces a sense of calm and sedation. Its indica-dominant heritage suggests a profile that leans towards relaxing and body-focused effects, making it suitable for unwinding. The strain is noted for its smooth vapor, particularly when consumed at lower temperatures, which helps preserve its nuanced flavor profile.

Terpenes & Cannabinoids

While specific terpene percentages are not detailed, the aromatic profile suggests a myrcene-forward composition, likely accompanied by caryophyllene and limonene, contributing to its earthy, spicy, and citrus notes. As a mostly indica strain bred for resin production, 4K is expected to have a high THC content, typically ranging from 18-27%, with CBD levels below 1%. Minor cannabinoids like CBG may also be present.

Cultivation

Silver River Seeds is known for developing strains with grower-friendly traits, including compact size, manageable growth, and good resin production suitable for various environments. 4K is reported to have dense floral clusters and ease of canopy management. Its indica heritage suggests a relatively fast flowering period and predictable indoor performance, favoring commercial practicality and artisan quality.

Origins & Lineage

The exact genetic lineage of 4K has not been publicly disclosed by Silver River Seeds. However, its growth characteristics and effect profile are consistent with classic indica-forward families, potentially including Afghan and Kush influences. These foundational genetics are often selected for dense bud structure, heavy trichome production, and reliable indoor cultivation.

Frequently asked questions

What type of strain is 4K?
4K is a mostly indica cannabis strain.
What are the typical THC levels for 4K?
THC content for 4K generally ranges between 18% and 27%.
What flavors are associated with 4K?
4K offers flavors of chocolate, coffee, nutty earth, citrus, and spice.
What effects does 4K provide?
Users report that 4K offers calming and sedating effects.