The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 2909Sativa

Iceberg

Ice (Indica Crystal Extreme) × White Widow

Iceberg is a sativa-leaning hybrid recognized for its exceptionally dense trichome coverage, which gives its mature buds a frosted, icy appearance. Originating in the late 1990s and early 2000s, this strain likely stems from resin-rich hybrids popular at the time, such as White Widow and Northern Lights.

May help withStress
AromaPineEarthyCreamDieselBerry

Appearance

Iceberg produces dense, compact, golf ball to egg-shaped buds that resist foxtailing. The flowers have a high calyx-to-leaf ratio, simplifying the trimming process. Buds are typically light to medium green, heavily dusted with trichomes that give them a silvery sheen, contrasted by fiery orange pistils. Under magnification, abundant capitate-stalked trichomes with bulbous heads are visible.

Some phenotypes may exhibit faint lavender hues on the bract tips when exposed to cooler night temperatures. The buds maintain a sticky texture due to high resin content, even in smaller formations, and should have a glassy, glistening finish when properly dried and cured.

Aroma & Flavor

The aroma of Iceberg is often described as a cool, mentholated pine scent layered over an earthy sweetness, with some phenotypes expressing a crisp evergreen note. Underlying this can be a subtle creamy vanilla undertone in certain varieties. A peppery spice note, indicative of caryophyllene, is also present.

When broken apart, the buds release a deeper resinous odor that approaches a diesel-like profile without being overly sulfurous. Some versions may also present faint berry esters, particularly those influenced by blueberry-leaning genetics.

Effects

While specific effects are not detailed in the source notes, strains with similar genetic backgrounds and terpene profiles often provide a balanced experience. Consumers may expect a cerebral uplift combined with a relaxing body sensation.

Terpenes & Cannabinoids

Iceberg is characterized by a high density of trichomes, suggesting significant cannabinoid and terpene production. While specific percentages are not provided, common terpenes associated with its profile include Myrcene, Limonene, Caryophyllene, Pinene, and Humulene. These contribute to its complex aroma and potential effects.

Growing

Iceberg is known for its compact structure and relatively quick flowering period, typically finishing between 56 to 63 days under a 12/12 light cycle, though some may extend to 70 days. It is well-suited for indoor cultivation due to its manageable size and fast turnaround time. The strain tends to pass on traits favorable for hash production, such as thick trichomes and a high calyx-to-leaf ratio.

Autoflowering versions are also achievable by incorporating ruderalis genetics, which can mature from seed in approximately 8-11 weeks. Iceberg plants generally exhibit strong apical dominance and compact internodes, with broad, slightly cupped fan leaves.

Origins & Lineage

Iceberg emerged in breeder forums and seed menus in the late 1990s and early 2000s, a period when resin-heavy hybrids from the Netherlands gained popularity. Its lineage is often linked to the Ice (Indica Crystal Extreme) and White Widow families, both renowned for their heavy resin production. The genetic makeup is thought to combine indica structure with sativa influences, likely through White Widow.

Due to the propagation of multiple cuttings under the same name, Iceberg can exist as a clone-only strain in some areas and as seed lines in others, leading to variations. It is generally considered a resin-selected hybrid from the broader White family.

Frequently asked questions

What is the THC content of Iceberg?
Iceberg typically has a THC content ranging from 15% to 25%.
What are the common terpenes found in Iceberg?
Common terpenes associated with Iceberg include Myrcene, Limonene, Caryophyllene, Pinene, and Humulene.
What is the typical flowering time for Iceberg?
Photoperiod Iceberg plants usually finish flowering between 56 and 63 days, with some potentially extending to 70 days.
What is the origin of the Iceberg strain?
Iceberg likely originated in the late 1990s or early 2000s and is believed to be related to resin-heavy hybrids like Ice and White Widow.