Arjan's Strawberry Haze
Cannabis seeds
by Greenhouse Seeds
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Arjan's Strawberry Haze Cannabis Seeds
Arjan's Strawberry Haze is a sativa-dominant cannabis seed strain from Greenhouse Seeds that delivers mouthwatering sweet berry flavours and an uplifting, sociable high. Born from a cross between a Swiss sativa and NL5 Haze Mist, this tall grower rewards patience with staggering yields — up to 800g/m² indoors and a full kilogram per plant outdoors. Available in packs of 3, 5, or 10 seeds.
Which Pack Size?
| Pack | SKU | Best For |
|---|---|---|
| 3 seeds | CSGH0272 | First-time growers wanting to test the strain without committing a full pack |
| 5 seeds | CSGH0273 | A solid run — enough to select the best phenotype and still have spares |
| 10 seeds | CSGH0274 | Serious growers filling a SOG or ScrOG setup, or anyone who wants the best per-seed value |
If you're running a Sea of Green or Screen of Green, go straight for the 10-pack. You'll want the numbers to fill your canopy evenly, and Arjan's Strawberry Haze responds well to both training methods.
Strawberry Haze Genetics and Lineage
Arjan's Strawberry Haze gets its character from two distinct parents: a Swiss sativa and NL5 Haze Mist. The Swiss sativa side brings the height, the vigour, and that unmistakable cerebral lift. NL5 Haze Mist — itself a cross involving Northern Lights #5 and Haze genetics — contributes resin production, structure, and the sweet berry terpene profile that gives this strain its name. Greenhouse Seeds, the Amsterdam-based seed bank behind this variety, has been breeding award-winning genetics for decades, and Arjan's Strawberry Haze sits comfortably in their catalogue as a crowd-pleaser.
What you get is a plant that leans sativa in both growth pattern and effect but doesn't take forever to finish. That's the NL5 influence keeping the flowering time in check — 10 weeks is quick for a sativa-dominant strain. Many pure Haze varieties push 14 weeks or more, so this is a genuine advantage if you're growing indoors and watching the calendar.
Specifications for Arjan's Strawberry Haze Seeds
| Specification | Detail |
|---|---|
| Seed Bank | Greenhouse Seeds |
| Genetics | Swiss Sativa x NL5 Haze Mist |
| Type | Sativa-dominant |
| Flowering Time | 10 weeks |
| Indoor Yield | Up to 800g/m² |
| Outdoor Yield | Up to 1kg/plant |
| Outdoor Harvest | Mid-October |
| Flavour Profile | Sweet strawberry, berry |
| Effect | Uplifting, cerebral, sociable |
| Training Suitability | SOG, ScrOG |
| Available Packs | 3, 5, or 10 seeds |
Running Arjan's Strawberry Haze in a tent? Pair it with a complete grow kit that includes lighting, ventilation, and a carbon filter — this strain's terpene production means your neighbours will know about it otherwise. A ScrOG net is also worth picking up to manage the height and maximise that 800g/m² potential.
Why Arjan's Strawberry Haze Deserves a Spot in Your Grow
We've seen plenty of sativa-dominant strains that promise big yields and then make you wait 14 weeks while they stretch into your light fixtures. Arjan's Strawberry Haze doesn't do that. Ten weeks of flowering for a sativa-leaning plant with yields touching 800g/m² indoors — that's genuinely impressive. Outdoors, you're looking at up to 1kg per plant with a mid-October harvest, which means growers in most of Western Europe can finish before the autumn rains set in properly.
The flavour is the real hook, though. Open a jar of dried Arjan's Strawberry Haze and you get hit with a sweet, unmistakably berry aroma that smells exactly like the name suggests. Vaped at lower temperatures, the strawberry notes come through even cleaner — it's one of those strains where you actually taste what the breeder intended. Smoked in a joint, the sweetness sits on your lips. It's not subtle.
The one thing to watch: height. This plant grows tall. If you're working with a 1.2m tent, you'll need to top early and train aggressively, or switch to 12/12 before the plant gets above 30-40cm in veg. Outdoors, height is a gift — more nodes, more bud sites, more weight. Indoors, it's a management challenge. SOG and ScrOG setups handle it well, and the plant responds to both without fuss. But if you just let it grow unchecked in a small space, you'll be fighting the ceiling by week 4 of flower. We'd always recommend a ScrOG net for indoor runs of Arjan's Strawberry Haze — it keeps the canopy flat and lets light reach the lower branches where most growers lose yield.
How to Grow Arjan's Strawberry Haze Seeds
- Germinate your Arjan's Strawberry Haze seeds using the paper towel method or directly in a starter plug. Keep temperatures between 22-26°C and expect taproots within 24-72 hours.
- Transplant seedlings into their growing medium once the taproot is 1-2cm long. Soil, coco, or hydro all work — this strain isn't fussy about substrate.
- During vegetative growth, keep an eye on height. Top the plant once it has 4-5 nodes to encourage lateral branching. If you're running a ScrOG, start weaving branches through the net once they reach the screen.
- For SOG setups, keep veg time short — 1-2 weeks maximum — and pack plants tightly at 4-6 per square metre. The sativa structure means less bushing out and more vertical growth, which suits SOG spacing.
- Switch to a 12/12 light cycle to trigger flowering. Expect significant stretch in the first 2-3 weeks of flower — sometimes doubling in height. If height is tight, flip early.
- Support heavy branches with stakes or a trellis net during the later weeks of flowering. Those 800g/m² yields mean dense, heavy colas that can snap branches without support.
- Harvest after approximately 10 weeks of flowering. Trichomes should be mostly milky with a few turning amber — this preserves the uplifting, cerebral character of the high. Waiting too long pushes effects towards sedation, which isn't what this strain is about.
- Dry in a dark room at 18-21°C with 55-60% humidity for 10-14 days, then cure in glass jars for at least 2 weeks. The strawberry terpenes intensify noticeably during a proper cure.
Flavour, Aroma, and Effects of Arjan's Strawberry Haze
The terpene profile on Arjan's Strawberry Haze is dominated by sweet berry notes — specifically that ripe strawberry character the name promises. It's not a background flavour you have to hunt for. On the inhale, whether smoked or vaped, the sweetness is front and centre. There's a slight floral undertone beneath the berry, likely from the Haze lineage, but the strawberry is what you'll remember. Vaped through a dry herb vaporiser at around 185-190°C, the flavour clarity is genuinely excellent — one of the better-tasting sativa-dominant strains we've come across.
Effects lean firmly cerebral. This is an uplifting, head-focused experience that makes conversation flow and creative tasks feel more engaging. It's the strain you'd pick for a Saturday afternoon with friends, not a late-night wind-down. The sociable quality is noticeable — people tend to talk more, laugh more, and generally feel more present. Solo, it works well for creative projects, music, or anything where you want mental energy without physical sedation.
The honest limitation: if you're after a heavy body effect or deep relaxation, this isn't the strain. Arjan's Strawberry Haze keeps things light and heady. For evening use or physical relaxation, something like an indica-dominant variety from Greenhouse Seeds — their Super Bud, for example — would be a better fit.
Frequently Asked Questions
How long does Arjan's Strawberry Haze take to flower?
Arjan's Strawberry Haze has a flowering time of approximately 10 weeks. For a sativa-dominant strain, that's relatively quick — many Haze varieties take 12-14 weeks or longer.
What yield can I expect from Arjan's Strawberry Haze indoors?
Indoor growers can harvest up to 800g/m² under optimal conditions with proper lighting, nutrition, and training techniques like ScrOG. Realistic first-time yields are typically lower — 500-600g/m² is still a strong result.
Is Arjan's Strawberry Haze suitable for beginners?
Yes, it's relatively low-maintenance and forgiving. The main challenge is managing height indoors — you'll need to top and train the plant. If you can handle basic topping and a ScrOG net, you'll be fine.
Can I grow Arjan's Strawberry Haze outdoors in Northern Europe?
Outdoor plants are ready for harvest in mid-October, which works for most of Western and Southern Europe. In Scandinavia or the UK, you may be cutting it close with autumn weather — a greenhouse or polytunnel helps.
What does Arjan's Strawberry Haze taste like?
Sweet strawberry and berry flavours dominate. It's one of those strains where the name matches the taste. Vaped at lower temperatures (185-190°C), the berry flavour comes through with impressive clarity.
What training methods work best for Arjan's Strawberry Haze?
SOG and ScrOG are both well-suited to this strain. ScrOG is our pick for indoor grows — it manages the sativa height and spreads light evenly across the canopy, maximising yield per square metre.
How does Arjan's Strawberry Haze compare to other Greenhouse Seeds strains?
Compared to something like Super Lemon Haze, Arjan's Strawberry Haze is sweeter in flavour and slightly easier to manage in height. Yields are comparable. If you want citrus over berry, Super Lemon Haze is the alternative — but for pure sweetness, Strawberry Haze wins.
Last updated: April 2026
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.