The Leaf Index
Vol. IA field guide to cannabis cultivarsleafly.cc
No. 3766Sativa

Amsterdam Blue by Sumo Seeds

Blueberry × Haze

Amsterdam Blue is a sativa-leaning cultivar developed by Sumo Seeds, blending traditional European breeding with modern flavor profiles. It is recognized for its Haze-like vigor and uplifting qualities, balanced by a sweet, approachable berry influence reminiscent of the Blueberry family. This strain is often favored for daytime use, offering a cerebral experience that supports creativity and social engagement.

May help withFocus Socializing
AromaBerryBlueberryCitrusFloralLavenderLemon

Appearance

Amsterdam Blue plants are characterized by their sativa-dominant structure, featuring lanky internodes and a tendency for strong lateral branching. Growers may observe a significant stretch post-flowering. In cooler temperatures during late flower, the cultivar can display anthocyanin pigmentation, leading to lavender or slate-blue hues on the leaves and calyx tips.

Aroma & Flavor

The aroma of Amsterdam Blue is often described as clean and zesty, with a resinous finish. Its flavor profile is consistently noted for its clear berry and citrus notes, complemented by floral undertones. The overall profile is perceived as fruit-forward and approachable, with a sweetness that balances the Haze characteristics.

Effects

Consumers report that Amsterdam Blue delivers an energetic and cerebral uplift, often associated with Haze strains, but tempered with a calm and friendly mood lift. This duality makes it suitable for daytime activities, creative endeavors, and social interactions, providing focus without being overly racy. The <1% CBD content suggests a potent THC experience that is generally not sedating.

Terpenes & Cannabinoids

While specific lab results vary, Amsterdam Blue is generally characterized by high THC levels ranging from 15-25% and minimal CBD (<1%). Terpene analysis of similar Blue x Haze crosses often indicates the presence of Limonene and Terpinolene, contributing to its citrus-floral aroma and energizing effects. The overall terpene content typically falls between 1.5-3.0%.

Growing

Amsterdam Blue is considered a sativa-leaning plant with a predictable stretch, requiring ample vertical space and training techniques like SCROG management. It exhibits resilience to common pests when integrated pest management (IPM) is practiced. Flowering times typically extend beyond eight weeks, and the strain can achieve medium-to-high yields. It is well-suited for LED lighting and requires good airflow.

Origins & Lineage

Developed by Sumo Seeds, Amsterdam Blue is a mostly sativa cultivar that draws from Amsterdam's breeding heritage and the influential 'Blue' family. It is believed to be a cross between a Haze-leaning sativa and a Blueberry-type indica, aiming to combine the vigor and psychoactivity of Haze with the sweetness and aromatic appeal of Blueberry. This blend results in a functional, flavorful daytime hybrid.

Frequently asked questions

What type of cannabis is Amsterdam Blue?
Amsterdam Blue is a sativa-dominant hybrid, often described as mostly sativa.
What are the primary flavors and aromas of Amsterdam Blue?
It is known for its fruit-forward aroma and flavor, with prominent berry, blueberry, and citrus notes, often accompanied by floral undertones.
What effects can I expect from Amsterdam Blue?
Amsterdam Blue typically provides energetic and cerebral effects, promoting creativity and focus, while also offering a sense of calm and uplift.
Is Amsterdam Blue suitable for beginners?
While its effects are generally not overly racy, the sativa-dominant nature and moderate difficulty in cultivation suggest it may be better suited for intermediate growers and consumers.