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Arjan's Ultra Haze 1 feminized seeds are your ticket to cultivating a piece of cannabis history, a legendary sativa that delivers a powerful, uplifting high and award-winning yields. This isn't just another Haze; it's a meticulously crafted masterpiece from Green House Seed Co., blending the iconic Neville's Haze with exotic landrace genetics from Cambodia and Laos for a truly unique and potent experience.
Ever dreamt of harvesting those classic, soaring sativa effects but got stuck with finicky genetics or disappointing yields? You plant a Haze, pour your heart into it for months, only to end up with a lanky plant that's more stem than flower, or a harvest that doesn't justify the wait. The frustration of a long flowering time with little to show for it can make you question if pure sativas are worth the effort.
That wait feels even longer when your space is limited, or when mould threatens your precious buds in the final weeks. You want that legendary cerebral spark and expansive yield, but without the gamble and the heartache of a failed grow. It's the classic sativa grower's dilemma: high risk for potentially high reward.
Arjan's Ultra Haze 1 is the solution engineered to solve that. It takes the legendary, introspective high of Neville's Haze and supercharges it with the vigour and yield of Southeast Asian landraces. You get the iconic effect you crave, but wrapped in a more manageable, incredibly productive plant that's been proven on the world's biggest stage.
To unlock the full potential of this sativa queen, you need to plan for her stature and flowering time. She's a vigorous, tall plant that loves to stretch.
Watching Arjan's Ultra Haze 1 develop is a masterclass in sativa growth. Her long branches and generous internodal spacing are a canvas for your training skills.
The patience pays off spectacularly around week 11-12 indoors, or early November in the Northern Hemisphere outdoors. You'll be rewarded with long, spiraling colas dripping in resin and covered in fiery orange pistils.
Indoors, she requires a long flowering period of 11 to 12 weeks to fully mature. Outdoors in the Northern Hemisphere, she is typically ready for harvest in the first week of November.
Due to her long flowering time, significant height/stretch, and specific nutrient needs, she is better suited for growers with some experience. Beginners should consider more forgiving strains like many autoflowering seeds to start.
Low-Stress Training (LST) and Screen of Green (SCROG) are highly recommended to control her height, create an even canopy, and maximize yield. Topping can also be performed during the vegetative stage.
Provide intense light, ample root space (large pots), consistent feeding without overdoing it, and employ training techniques. Ensuring excellent air circulation and stable environmental conditions throughout the long flowering phase is also critical.
It means the effects come on gradually rather than hitting you immediately. You might feel a mild onset that slowly builds in intensity and clarity over 10-20 minutes, leading to a sustained, cerebral experience.
Arjan's Ultra Haze 1 is a strain I always come back to when I want a project that rewards patience with sheer excellence. The first thing you notice is the vigour – she's a beast in veg, stretching for the sky. My key tip from the start is to get her into her final large pot early and don't be shy with the LST. I bend those main stems over almost horizontally to create a wide, multi-cola bush. It's essential to manage that legendary sativa stretch.
During flowering, she's a heavy feeder but hates being overfed. I stick to a balanced base nutrient and introduce a PK booster around week 5, which really pumps up the resin production on those long, foxtailing buds. The smell in the tent is incredible – a sharp, spicy haze with a lemon peel kick that cuts through. You'll definitely need a good carbon filter.
The wait is the real test. Around week 10, you'll be itching to chop, but hold out for those extra 7-14 days. Let those trichomes go mostly milky with a touch of amber for that perfect, clear-headed yet potent effect. The smoke is worth every day of patience: expansive, uplifting, and fantastically creative. It's not a knockout stone; it's a tool for the mind. Just be ready to support those heavy, resin-soaked branches in the final weeks – they will need it. Growing her successfully is a badge of honour for any cultivator.
| Type: | Feminized | |
| Banks: | Green House | |
| Genetics: | Neville's Haze x Cambodian x Laos | |
| Phenotype: | Sativa | |
| Harvest outdoor H.N: | Early September | |
| Harvest outdoor H.S: | Early March | |
| Indoor production: | 700 g/m2 | |
| Outdoor production: | 1150 gr/plant | |
| Indoor flowering period: | 13-14 weeks | |
| THC: | 16.22% | |
| CBD: | 0.19% |
Yes, the shipment is 100% discreet, no one will know what you have bought, also the sender is SITE OF SHOPS ONLINE.
Yes, we ship to almost every country in the world although you need to know the current legislation in your country to make sure that you do not break any regulations with the germination of the seeds.
UK: 3-4 days (express)
USA: 4-5 days (express)
Australia: 4-5 days (express)
Japan: 4-5 days (express)
Canada: 4-5 days (express)
South Africa: 4-5 days (express)
New Zealand: 5-7 days (express)
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The customer must be informed about the laws of their country regarding seeds or other products that may be purchased on our website, the possession of which may constitute a criminal offence in the country of receipt.
We cannot be made responsible for the wrong use that some people decide to give to the seeds, so please don't act against your national laws.
Due to problems with customs you can check here for restrictions to certain countries.
We accept the following payment methods: Bank transfer, Cryptocurrencies, cash, credit and debit cards and cash on delivery (Spain, Belgium, France, Italy, Portugal).
You can change the currency on the top right to know the price of the products in your local currency and of course pay this way.
In 24/48 hours we will ship your order.
If you live in a country where the cultivation of cannabis is legal and you decide to plant the seeds, it is good that you know that all the seeds that we commercialize have germination guarantee.
If you germinate with the method of paper napkins and you have followed all the steps that we indicate here, you will only have to return us the seeds not germinated in their original packaging and when we receive them we will proceed to the change.
Then we take care of requesting the return to the seed bank, we do not transfer this responsibility and time to our customers.
If you receive a broken product due to transport, you have to notify us within 24 hours for insurance coverage, always contact us as soon as possible and we will fix the problem!
Among all those who comment or send us your questions, there will be a monthly raffle for a €50 voucher for your purchases at Pevgrow. What are you waiting for? Write us and participate!