5th Element Strain Review: Effects, Flavor, Genetics & Grow Info

I’m publishing this 5th Element Strain Review: Effects, Flavor, Genetics & Grow Info as a fresh grower’s log dated December 29, 2025. I’ve run this cultivar indoors more than once, in both coco and soil, under LED. What follows is experience-based: what the plant did in my room, how I kept it healthy, and what changed the final jar quality.

I’ll keep it factual. Cannabis, marijuana, and weed can vary a lot by phenotype, environment, and how you finish drying and curing. If you want a bright jar and predictable performance, the details matter.

Quick notes before you start

In my tent, this plant rewarded consistent inputs and punished sloppy humidity in late bloom. Three themes show up throughout this 5th Element Strain Review: Effects, Flavor, Genetics & Grow Info:

Keep the canopy even with a simple low-stress training routine
Measure light so you can build an LED canopy PPFD map
Treat late-flower humidity control as part of yield and quality, not a “nice to have”

Genetics and phenotypes I actually saw

Most descriptions point to the Blackberry x All Spark OG lineage. In my grows, the Blackberry x All Spark OG lineage expressed in two directions.

One phenotype leaned fruitier, with a deeper berry note and slightly rounder buds. The other leaned sharper, with more citrus peel and pine on the nose. Both still behaved like an indica-leaning hybrid cultivar: manageable stretch, eager branching, and tight flowers.

If you’re selecting a keeper, take cuts in veg, label them, and compare jars after cure. The Blackberry x All Spark OG lineage can be consistent, but it’s not identical plant-to-plant.

Aroma and flavor: how I got the best profile

When it’s finished properly, I’d describe it as a berry-forward terpene blend layered over earthy base notes, then a citrus lift on the exhale. I only got that full berry-forward terpene blend when I controlled the dry and didn’t overfeed late.

What I noticed across stages:

Mid flower: damp earth, faint fruit skin, and a developing citrus edge
End of flower: fruit and citrus get louder, especially with good airflow
After cure: the berry-forward terpene blend becomes cleaner and more defined

If you rush the finish, the berry-forward terpene blend collapses into generic sweetness. That’s why I’m specific about dry room temperature and RH targets later.

Effects: my honest notes and the trade-offs

This 5th Element Strain Review: Effects, Flavor, Genetics & Grow Info is based on my own sessions, not a promise and not medical advice. For me, the effects started with a light mood lift and calmer mental bandwidth, then rolled into body ease over the next hour or so. It felt versatile, but harvest timing changed it.

Earlier harvest: more functional and shorter
Later harvest: heavier body feel and more “evening only”

That tracks with how an indica-leaning hybrid cultivar often lands for me: not instantly sedating, but not a pure “get-up-and-go” weed either.

Grow setup: what worked indoors under LED

I grew this indoors with modern LED, strong extraction, and continuous circulation. If you can keep leaf temperature, humidity, and feed steady, the plant is cooperative.

Light targets and an LED canopy PPFD map

I don’t guess at intensity. I build an LED canopy PPFD map after training and again after the first defoliation, because the canopy shape changes. My typical targets without supplemental CO₂:

Veg: 300–500 PPFD
Early flower: 600–800 PPFD
Mid to late flower: 800–950 PPFD, only if the plant is happy

The LED canopy PPFD map kept my tops uniform and reduced popcorn. If I saw bleaching, taco leaves, or persistent tip burn, I reduced intensity and rechecked the LED canopy PPFD map.

VPD, temperature, and late-flower humidity control

Tight flowers demand late-flower humidity control. These ranges kept my plants healthy and helped avoid moisture pockets:

Veg: 24–28°C, 60–70% RH
Early flower: 24–27°C, 55–60% RH
Late flower: 22–26°C, 45–55% RH

For VPD, I’m usually comfortable around 0.8–1.1 kPa in veg and 1.2–1.5 kPa in flower, then I lean higher late to support late-flower humidity control. I also avoid overcrowding the canopy, because no dehumidifier fixes a plant that’s packed too tight.

Feeding notes: coco versus soil

I ran this plant in coco and in soil. Both can produce excellent cannabis, but the day-to-day style is different. If you’re new, pick the method you can execute consistently.

Coco: my coco feed EC strategy

My coco feed EC strategy stayed conservative. This cultivar can look perfect and then show salt stress fast if runoff climbs. Typical EC ranges I used:

Early veg: 0.8–1.2
Late veg: 1.2–1.6
Mid flower: 1.6–2.0
Late flower: taper down if tips show stress or runoff rises

If runoff EC increases week over week, my coco feed EC strategy becomes “less input, more consistency,” not “add more.” Under strong LED, I also watch magnesium and calcium closely.

Soil: steady moisture and a soil microbial top-dress

In soil, I focus on roots first: oxygen, steady moisture, and a simple soil microbial top-dress. My baseline:

Early veg: light soil microbial top-dress and consistent watering
Pre-flip: another soil microbial top-dress to support stretch
Mid flower: small soil microbial top-dress only if the plant is clearly hungry

A soil microbial top-dress works best when you don’t drown the pot. Overwatering blunts aroma and makes the plant sluggish.

Training and canopy management

I kept training simple so I could repeat results. My go-to low-stress training routine:

Top once above node 4–6
Tie mains outward and open the center
Train secondaries to level the canopy
Light defoliation to improve airflow
Gentle cleanup of shaded lower growth

A low-stress training routine supports the LED canopy PPFD map and helps late-flower humidity control by reducing interior humidity pockets.

IPM basics for indoor growers

I treat pest prevention as routine: sticky traps, weekly leaf checks, and clean tools. I avoid spraying late in flower. If you’re chasing late-flower humidity control, you don’t want to add moisture to buds.

Harvest timing: what I watch

I don’t harvest by calendar alone. I look at trichomes, pistil behavior, and how the plant drinks. When most trichomes are cloudy with a small amber percentage and water uptake slows slightly, I’m usually in the window.

If you want the cleanest berry-forward terpene blend, don’t push it past the point where the plant is obviously finishing.

Drying and curing: how I protected flavor

This is where many marijuana grows lose quality. My priority is slow, controlled drying followed by a patient cure.

Dry room temperature and RH targets

My dry room temperature and RH targets are:

18–20°C
55–60% RH
Indirect airflow
10–14 days, adjusted for flower firmness

Hitting those dry room temperature and RH targets preserved the berry-forward terpene blend far better than a quick dry. If your room runs warm, slow the airflow and keep the space dark.

Cure routine

I jar when small stems snap and buds feel dry outside but not brittle. I target 58–62% jar RH and burp as needed in week one, then taper. After two to three weeks, the berry-forward terpene blend usually becomes noticeably cleaner.

Seed-shopping notes and planning your grow

People often land here looking for a seed bank and practical guidance. This isn’t legal advice, but it is practical planning.

If you plan to buy feminized cannabis seeds online, look for clear lineage info, realistic photos, and transparent shipping policies. When you buy feminized cannabis seeds online, store seeds cool and dry until you’re ready. When you buy feminized cannabis seeds online, plan your environment first, because odor control and late-flower humidity control will matter more than brand names once flowers get tight.

A few common searches I see from new growers:

best germination method for weed seeds
soil vs coco for a first cannabis grow
LED light schedule for photoperiod marijuana
how to avoid nutrient burn in flower
why leaves taco under LED
how long to dry cannabis buds for smooth smoke

Troubleshooting checklist from my runs

If something goes sideways, I start here:

Tip burn after a feed change: lower input EC and reset the coco feed EC strategy
Buds feeling damp late: increase airflow, reduce RH, tighten late-flower humidity control
Uneven bud size: redo the LED canopy PPFD map and level the canopy
Flat aroma after harvest: review dry room temperature and RH targets and slow the dry
Sluggish soil plant: reduce watering frequency and reassess soil microbial top-dress timing

FAQ

Is this cultivar better for day or night?

For me it depends on harvest timing. Earlier harvest felt more functional. Later harvest leaned heavier, which fits an indica-leaning hybrid cultivar profile.

What’s the simplest training method for beginners?

A basic low-stress training routine with one topping and gentle tie-downs. It’s easy to manage and works well with LED.

Coco or soil for best results?

Coco works great if you can follow a consistent coco feed EC strategy. Soil is forgiving if you can manage watering and use a steady soil microbial top-dress.

How do I keep the best flavor?

Prioritize dry room temperature and RH targets, then cure patiently. That’s how I kept the berry-forward terpene blend intact.

Final notes

I wrote this 5th Element Strain Review: Effects, Flavor, Genetics & Grow Info to be useful from seed to jar. The Blackberry x All Spark OG lineage can produce tight, aromatic flowers, but your results depend on fundamentals: an LED canopy PPFD map, a repeatable low-stress training routine, and serious late-flower humidity control late in bloom. Get those right, then protect the finish with dry room temperature and RH targets and a patient cure.

If you’re comparing cultivars and considering whether to buy feminized cannabis seeds online, I’d put this one in the “rewarding when you’re disciplined” category: cooperative growth, strong bag appeal, and a berry-forward terpene blend that shows up when you finish well.

For a complete directory of cultivars, visit our Cannabis Strain Reviews.