Onyx – Flash Seeds (Feminised Autoflowering)


A compact, berry-scented autoflower with resilient growth and a balanced high


Introduction:

Onyx by Flash Seeds is a robust autoflowering feminised strain, carefully crafted from powerhouse genetics to deliver flavour, strength, and versatility. A cross of AK47, White Russian, and Nepalese varieties, this strain offers both resilience and potency in a stealth-friendly size. With a rich berry aroma and an uplifting, body-recharging high, Onyx is perfect for beginners, guerrilla growers, and connoisseurs alike.


Strain Information:

Strain Name: Onyx

Breeder: Flash Seeds

Lineage: AK47 × White Russian × NYC Diesel

Genetics: Indica / Sativa hybrid

Seed Type: Feminised Autoflowering

Flowering Type: Autoflowering

Flowering Time: 75–85 days from seed

Effect: Euphoric, physically relaxing, mentally uplifting, sociable

Aroma: Rich berries with notes of incense and spice

Taste: Bold berry, sweet with exotic undertones

Height: 60–120 cm

Yield: 50–110 g per plant

THC Content: 18%

CBD Content: Not specified


Strain Description:

Onyx is a resilient and aromatic autoflower that flourishes in almost any environment. Despite its compact size, it produces long, elegant leaves and buds drenched in sweet, berry-rich aroma. The high is multifaceted—initially energising and social, followed by a smooth body relaxation that makes it ideal for both solo and group sessions. The strain's aesthetic appeal, resin coverage, and smooth smoke make it a standout choice for growers and users alike.


Growing Information:

Designed for ease, Onyx is well-suited to indoor cultivation, balconies, or discreet outdoor setups. It is highly resistant to pests and environmental stress, making it especially attractive to beginner growers or those in unpredictable climates. Reaching just 60–120 cm, it’s an ideal strain for guerrilla grows or smaller tents. Expect harvests in around 11–12 weeks from seed, with solid yields of up to 110 g per plant under optimal conditions.


Flavour and Aromas:

Onyx offers a deep berry-forward aroma with exotic, incense-like undertones. The flavour is rich and sweet, with layers of fruit and a gentle spiced finish that lingers pleasantly. It delivers a smooth, satisfying smoke that complements its balanced and uplifting effects.


Strain Lineage:

AK47 – known for its balanced high and fast flowering

White Russian – adds potency and heavy resin production

NYC Diesel – contributes complex flavour and sharp cerebral energy


Effects:

Onyx delivers an initial burst of euphoria and sociability followed by a gentle, body-centred calm. The balanced Indica-Sativa profile makes it suitable for any time of day—ideal for creative projects, socialising, or simple relaxation.


Strain Summary:

Onyx by Flash Seeds is a compact, tough, and fragrant autoflower that delivers both flavour and function. With its luscious berry scent, relaxing yet euphoric high, and impressive resilience, it’s a smart pick for growers of all experience levels. Whether you're looking for an easy personal grow or a discreet powerhouse for sharing, Onyx packs a fruity punch in a manageable form.


Disclaimer: All seeds sold at Breeders Collective are strictly intended as souvenirs and for preservation purposes. We do not condone or encourage illegal activity. Please ensure you understand and comply with your local laws regarding cannabis seeds and cultivation.