Q
My leaves are yellowing in week three of veg, is that normal?
A
Slight yellowing can be a sign of light stretch or early nutrient imbalance; check pH and reduce any excessive nitrogen if needed.
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- Clear-headed uplift, steady yields.
Blockhead
Feminised
Blockhead is a balanced hybrid that delivers clear cerebral lift and a calm body sensation with moderate THC levels.
Why choose Blockhead?
- Balanced hybrid with clear highs
- Handles training and canopy control well
- Rich citrus and pine terpene profile
THC |
18-24% |
CBD |
0.5-1.5% |
Lineage |
Northern Lights x Haze |
Genotype |
Hybrid |
Difficulty |
Intermediate |
Flowering |
8-10 weeks |
Height |
0.8-1.5 m (indoor), 1.5-2.5 m (outdoor) |
Yield |
400-600 g/m² (indoor) |
Taste |
Citrus zest, Earthy pine, Sweet spice |
Seed Type |
Feminised |
Climate |
Humid Indoor Grow Rooms |
Effects |
Uplifting, Focused, Calming |
Environment |
Indoor and sheltered outdoor |
About Blockhead
Blockhead is a reliable hybrid bred from Northern Lights x Haze that combines bright, focused highs with stable, resinous structure. It suits growers who want predictable yields and a terpene-forward smoke that offers citrus and earthy pine notes while performing well in controlled indoor environments.
Grow Difficulty:
Growers will find Blockhead manageable but it needs attention in humid indoor grow rooms to avoid mould. Regular training and airflow management reduce risk and improve bud development.
Flowering Time:
Flowering typically finishes within eight to ten weeks indoors. Outdoor crops in a sheltered location can be ready by early autumn.
Yield:
Yields are reliably medium to high under good conditions and proper canopy control. Expect denser colas with attentive feeding and trimming.
Height:
Plants show a compact to medium stretch during flowering, producing solid central colas. Branching is predictable which makes training straightforward.
Environment:
Indoors, Blockhead responds well to SCROG and SOG techniques in Manchester where space is limited. Outdoors in Manchester it prefers a sheltered site with good air circulation to mitigate dampness.
Climate:
Growing Blockhead in Manchester with humid indoor grow rooms requires strict humidity control to prevent mould. Dehumidification and steady ventilation are essential during late flowering.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
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Choose seed quantity
Selected:
5 Seeds
£8.00 / seed • You save £13.33
100% Satisfaction Guarantee • Secured Payments