Kryptonite Feminized Seeds – Pyramid Seeds | Fast-Flowering Sativa with Citrus Haze Aroma

Kryptonite feminized seeds by Pyramid Seeds are a photoperiodic sativa-dominant powerhouse, delivering long, dense buds and a rapid flowering cycle that turns heads in any grow room. Expect a deep, euphoric high with intense citrus-haze aromas that elevate your senses and clear your mind.

Are you still struggling with slow, underperforming sativas that take forever to finish?

Most sativa strains drag on for months, draining your energy, electricity, and patience. They stretch too much, need constant training, and often disappoint with weak flavors or mediocre yields. And when you finally harvest, the effect might be too scattered or underwhelming for a true connoisseur.

With Kryptonite, you get a fast-flowering sativa that cuts the wait without sacrificing power. Bred in the Sierra de Granada, this 80% sativa hybrid finishes in just 58–65 days indoors, packing THC levels between 20–23% and delivering a clean, psychedelic lift that’s perfect for unwinding after a long day or diving into a sci-fi marathon.

How Your Grow Space Transforms with Kryptonite

Before Kryptonite, your grow might feel like a battle against time and instability — tall, lanky plants, inconsistent resin, and a finish date that keeps moving. After introducing Kryptonite, everything tightens up. The plant stays medium-sized — reaching 0.80–1.10 m (2.62–3.61 ft) indoors — with strong vertical colas and minimal lateral branching, making it easier to manage and support. The flowering phase is predictable, and the buds pack on weight fast, turning your setup into a high-efficiency sativa machine.

You’ll notice less stress during flowering, fewer mold issues thanks to its resilience, and a harvest that arrives weeks earlier than most sativas. The space becomes more productive, more predictable, and more rewarding.

What You’ll Harvest from This Sativa Powerhouse

• Long, dense, resin-coated buds with a frosty, professional look
• Citrus-forward flavor with sweet lemon and spicy haze undertones
• Powerful cerebral effects that evolve into full-body relaxation
• High yields: up to 450 g/m² (1.6 oz/ft²) indoors under 720W LED
• Outdoor harvests of 0.5–1.5 kg (1.1–3.3 lb) per plant in optimal conditions
• Fast turnaround: ready for harvest in just 58–65 days of flowering
• Distinctive light green foliage during bloom, adding visual appeal

Simple Steps to Maximize Your Kryptonite Grow

1. Start seeds in a well-aerated medium like Light Mix BioBizz 50L for strong root development.
2. Use an 11–20 L pot depending on space; this strain responds well to SCROG and LST.
3. Provide 18/6 light cycle in veg, then switch to 12/12 to trigger flowering.
4. Support heavy colas early — use soft ties or trellis netting from Seedfinder to prevent breakage.
5. Reduce humidity to 40–50% in mid to late flowering to protect dense buds.
6. Flush nutrients 7–10 days before harvest for a smoother smoke.
7. Cure buds for 2–4 weeks to enhance flavor and effect.

Why This Strain Delivers More Than Just High Yields

• Fastest-flowering sativas on the market — ideal for quick rotations
• High resistance to pests and mold — great for humid climates
• Minimal training needed — grows true to type with strong structure
• THC levels up to 23% — intense, long-lasting effects without anxiety
• Distinctive citrus-haze profile — stands out in flavor and aroma
• Perfect for creative or social evenings — not a couch-lock indica
• Trusted genetics from Pyramid Seeds — a breeder known for stability

Technical specifications

• Breeder / Brand: Pyramid Seeds
• Type: Feminized
• Dominance: Sativa 80% – Indica 20%
• Genetics: Yumbolt
• Flowering time (indoor): 58–65 days
• Flowering time (outdoor): Late August – early September (Northern Hemisphere)
• Height (indoor): 0.80–1.10 m (2.62–3.61 ft)
• Height (outdoor): 1.20–1.80 m (3.94–5.91 ft)
• Yield (indoor): 450 g/m² (1.6 oz/ft²) | up to 800–950 g/1.5m² (28.2–33.5 oz) with 720W LED
• Yield (outdoor): 0.5–1.5 kg (1.1–3.3 lb) per plant
• Difficulty: Medium
• Structure: Tall, vertical colas, limited branching
• Climate: Mediterranean, temperate
• Resistance: High resistance to fungi and pests
• Training: Suitable for LST, SCROG, topping
• Substrate: Soil or coco with good drainage
• Light cycle: 18/6 (veg), 12/12 (flowering)
• Temperature: 22–26 °C (veg), 20–25 °C (flowering)
• Humidity: 60–70% (seedling), 50–60% (veg), 40–50% (flowering)
• pH: 6.0–6.5 (soil), 5.8–6.2 (coco/hydro)
• Smell in grow: Medium to high — consider a carbon filter
• THC: 20–23%
• CBD: Low
• Aromatic profile: Limonene, pinene, myrcene
• Flavour: Citrus, lemon, spicy, pine, earthy
• Effect: Cerebral, euphoric, psychedelic, relaxing — ideal for nighttime use

How to Grow Kryptonite Feminized Seeds for Best Results

Quick overview: feminized photoperiod from Pyramid Seeds, 58–65-day flowering, medium difficulty, ideal for indoor SCROG or outdoor Mediterranean gardens.

Safe start: germinate in a warm, humid environment. For faster rooting, Pro Roots boosts early development and reduces transplant shock.

• Use jiffy or rockwool cubes at 22–25 °C and 70% RH
• Transplant when taproot reaches ~1 cm (0.4 in)
• Start in 3–7 L pots, then move to final 11–20 L containers
• Choose Light Mix BioBizz 50L for optimal aeration and structure
• Apply Pro Roots at transplant to strengthen root mass

Directed growth: maintain 18/6 light cycle and support vertical growth early.

• Use LST or soft ties to control height and expose lower nodes
• Top once during early veg to encourage bushier growth
• Water moderately — this strain dislikes soggy soil
• Feed with balanced nutrients; avoid excess nitrogen in late veg
• Ensure good airflow to prevent humidity buildup

Efficient flowering: switch to 12/12 and support heavy colas.

• Expect stretch in first 2 weeks — keep lights at safe distance
• Install trellis netting or bamboo stakes early
• Reduce RH to 40–50% to protect dense buds from mold
• Use RootStimulator HY-PRO to maintain root health under heavy feeding
• Add bloom boosters in mid-flowering for maximum density

Harvest and refinement: aim for milky-to-amber trichomes.

• Flush with plain water 7–10 days before harvest
• Harvest when 70% of trichomes are milky, 30% amber
• Dry slowly at 18–22 °C and 50–60% RH
• Cure in glass jars for 2–4 weeks, burping daily
• Enjoy enhanced flavor, smoother smoke, and balanced effects

Frequently Asked Questions

How long does Kryptonite take to flower?

Indoors, Kryptonite flowers in 58–65 days. Under powerful 720W LED lighting, it can finish in as little as 58 days, making it one of the fastest high-THC sativas available.

Is Kryptonite good for beginners?

It’s medium difficulty — easy to grow with basic training, but benefits from support due to heavy colas. Great for growers with some experience looking for a fast, potent sativa.

What does Kryptonite smell and taste like?

It has a sharp citrus-haze aroma with sweet lemon and spicy undertones. The flavor is bright and tangy, with earthy and pine notes on the exhale.

Can I grow Kryptonite outdoors?

Absolutely. It thrives in Mediterranean or temperate climates, ready for harvest in late August to early September. Expect massive yields of 0.5–1.5 kg (1.1–3.3 lb) per plant in optimal conditions.

Does Kryptonite need a lot of nutrients?

It has normal feeding needs — avoid overfeeding, especially in early flowering. Use a quality base nutrient like Terra HY-PRO and adjust as the plant progresses.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Kryptonite in my indoor SCROG setup under 720W LEDs, and it was a game-changer. At 58 days flowering, it was ready weeks before my other sativas. The colas were thick, sticky, and covered in trichomes — looked like someone dusted them with sugar. I used soft ties from week 3 to keep the main stem upright, and added a trellis net at flowering onset. No mold, no pests, just solid growth from start to finish.

What surprised me was the flavor — way more citrus than I expected, almost like biting into a ripe lemon. The high hit fast: cerebral, uplifting, then smoothly transitioned into deep relaxation. Perfect for unwinding after work. My tip? Don’t rush the cure — let it sit for at least three weeks. The flavor deepens, and the smoke gets silkier. If you want a sativa that delivers speed, power, and taste, Kryptonite is your go-to.