The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 4631Sativa

Mastodon Haze by Stillwater Genetics

Unknown × Unknown

Mastodon Haze is a mostly sativa cultivar from Stillwater Genetics, recognized for its energetic and terpene-forward profile. This assertive Haze offers classic uplifting effects combined with modern resin density and visual appeal. It is sought after for its vigorous growth and bright aromatic qualities.

AromaCitrusPineHerbalIncenseFloralMango

Appearance

Mastodon Haze plants grow tall and branchy, characterized by narrow leaves and moderate to long internodal spacing. During late flower, the buds are coated in frosty trichomes, giving them a silvery sheen. The colas are elongated and taper to a point, resembling spears rather than dense clusters. Some phenotypes may exhibit slight foxtailing, a common trait in Haze varieties.

Finished buds maintain their spear-like shape with clear calyx stacking and medium density. The high ratio of exposed trichome heads contributes to a sparkling appearance. Properly dried flowers display a contrast between pale green calyxes and darker sugar leaf edges.

Aroma & Flavor

The aroma of Mastodon Haze is bright and effervescent, leaning towards classic Haze notes. It features top notes of citrus zest and green pine, supported by a base of sweet herbs and incense. Breaking apart cured flowers can release secondary notes of floral spice and faint melon or mango.

On the palate, the initial impression is citrus and pine, followed by a clean herbal finish. Expressions high in terpinolene may have an effervescent quality, while limonene adds perceived sweetness. Caryophyllene and humulene contribute a lingering peppery, woody taste on the exhale.

Effects

As a sativa-dominant strain, Mastodon Haze is known for delivering clear-headed cerebral effects. Consumers often report feeling energetic, focused, and creative after consumption. Its uplifting qualities make it a suitable choice for daytime use when seeking mental clarity and invigoration.

Terpenes & Cannabinoids

Mastodon Haze typically exhibits a THC-dominant cannabinoid profile, with levels often ranging from 18-26% and CBD below 1%. Minor cannabinoids like CBG may be present in small amounts. The terpene profile is consistent with Haze genetics, frequently led by terpinolene, with supporting terpenes including myrcene, beta-caryophyllene, limonene, humulene, and ocimene. Total terpene content can range from 1.5-3.5% in well-grown samples.

Growing

Mastodon Haze is a mostly sativa cultivar that requires attentive cultivation. It benefits from training techniques such as early topping and netting to manage its vigorous growth and channel energy into the main colas. The strain generally has a longer flowering period, typically requiring 11-13 weeks to reach full maturity, though some earlier phenotypes may finish in 9.5-10 weeks.

This cultivar thrives in environments that allow for height management and consistent control. Indoors, trellising is recommended. Outdoors, warm, sunny climates with long growing seasons are ideal for this strain to reach its full potential. It rewards growers with long, luminous colas and dense resin production.

Origins & Lineage

Mastodon Haze was developed by Stillwater Genetics, a breeder known for creating energetic, terpene-forward cannabis selections. While the exact parental lineage has not been publicly disclosed, the strain's characteristics strongly suggest a dominant Haze genetic backbone, likely reinforced with modern breeding for enhanced resin coverage and potency.

Frequently asked questions

What type of strain is Mastodon Haze?
Mastodon Haze is a mostly sativa cultivar.
What are the typical THC levels for Mastodon Haze?
THC levels typically range from 18-26%.
What is the terpene profile known for?
It is known for a terpene profile often led by terpinolene, with supporting notes of myrcene, caryophyllene, limonene, humulene, and ocimene, contributing to its bright aroma and flavor.
What kind of effects can I expect from Mastodon Haze?
Consumers can expect clear-headed, cerebral effects that are energetic, focused, and creative.