Amnesia Haze

Amnesia Haze is one of the old Amsterdam names that still carries weight. Barney’s Farm Seeds offers this version as feminised seeds, keeping the classic sativa character that made the strain a coffee shop favourite and a Cannabis Cup champion.

The genetics are a four-way landrace blend: Jamaican x Thai x South Asia x Cambodia. That background matters because it explains the feel of the plant as much as the name does. This is an 80% sativa and 20% indica variety, with the long-flowering, aromatic, high-energy side of Haze clearly at the front. THC is listed at 24%.

The aroma is very much in classic Haze territory, but it’s not just one-note citrus. Expect fresh lemon and bright citrus first, backed by earthy pungency and spice. The flavour follows a similar path, with lemon up front, then a deeper earthy base and touches of incense and spice on the exhale. It’s the sort of profile people often look for when they want an old-school sativa with a sharper, more aromatic finish rather than a sweet dessert style.

The effect is described as energising, mentally stimulating, cerebral and uplifting. Barney’s Farm also notes a euphoric side, with that familiar “Amnesia” feel where attention can become fully absorbed. It’s a strong sativa-style experience rather than a sleepy one, so the appeal here is mainly clarity, lift, activity and creative focus.

Classic sativa growth with proper stretch

Indoors, Amnesia Haze reaches around 100–140 cm and has a flowering period of about 75 days. The plants show the expected sativa structure, with vigorous growth and stretching in bloom. Barney’s Farm notes a high flower-to-leaf ratio and strong resin production, with elongated, fluffier buds, lime-green colour, orange pistils and a visible crystal coating.

Indoor yields are listed at up to 650 g/m². The strain responds well to training techniques, which is useful given its stretch and sativa build. It’s not presented as a tiny plant, so growers planning indoor space should take the 100–140 cm height and flowering stretch seriously.

Outdoors, it suits warm climates and can exceed 2 metres in height. Yields are listed at up to 1 kg per plant, with harvest around the 3rd–4th week of October. That longer outdoor finish is part of the package with a Haze of this type, and it gives the terpene profile and resin production time to develop properly.

Amnesia Haze is best chosen for its established sativa heritage: Jamaican, Thai, South Asian and Cambodian genetics, a bright citrus-spice profile, 24% THC and an uplifting cerebral effect. It’s a good fit if you want the recognisable Amsterdam Haze style from Barney’s Farm rather than a quick, compact indica-style plant.