Ultra Lemon Haze Auto by Auto Seeds
Ultra Lemon Haze Auto brings Lemon Haze, Sour Diesel and Auto #1 together in a feminised autoflower made for collectors who want recognisable genetics without losing the convenience of a modern automatic variety. This is a sativa-dominant autoflower with THC levels of 19–21%, a complete lifecycle of approximately 90–100 days and a distinctive sharp citrus, pink grapefruit and diesel flavour profile.
Its character centres on a bright cerebral lift with smooth physical relaxation and a clear, energising finish. The balance of flavour, potency and established genetics gives Ultra Lemon Haze Auto an identity that is easy to recognise, while its autoflowering nature offers a quicker and more compact expression of the original family.
Why Choose Ultra Lemon Haze Auto?
- Feminised autoflowering seeds from Auto Seeds
- A sativa-dominant autoflower created from Lemon Haze, Sour Diesel and Auto #1
- THC levels of 19–21%
- Approximately 90–100 days from seed to completion
- 60–140cm medium or compact plant structure
- Yields of approximately 400–500g/m²
- Sharp citrus, Pink grapefruit, Diesel flavour notes
- Available in original breeder packs of three or five seeds
Genetics
The genetics behind Ultra Lemon Haze Auto combine Lemon Haze, Sour Diesel and Auto #1. This pairing preserves the defining qualities that made the original line desirable while adding the automatic flowering trait needed for a quicker lifecycle. Ruderalis contributes speed and independence from changing light cycles, while the indica and sativa sides shape the variety’s aroma, structure and overall personality.
Ultra Lemon Haze Auto is best understood as a sativa-dominant autoflower, rather than a pure indica or pure sativa. That distinction matters with autoflowers because ruderalis forms part of the genetic make-up. The result retains a clear connection to its named parentage while offering the practical proportions and faster finish associated with contemporary autoflower breeding.
Aroma & Flavour
- Aroma: Sharp citrus leads the bouquet
- Flavour: Pink grapefruit adds the central character
- Finish: Diesel provides the final layer
The combination of sharp citrus, pink grapefruit and diesel gives Ultra Lemon Haze Auto a profile with genuine depth. The first impression is driven by sharp citrus, followed by the fuller character of pink grapefruit. Diesel remains through the finish, preventing the profile from becoming flat or one-dimensional. Collectors drawn to flavour-led genetics will find plenty here to distinguish it from more generic autoflowers.
Plant Characteristics
Ultra Lemon Haze Auto completes its full lifecycle in approximately 90–100 days and reaches around 60–140cm. Its structure reflects a sativa-dominant autoflower, combining the recognisable shape of its parent line with the reduced scale and faster development of ruderalis genetics. This makes it an appealing comparison point for collectors exploring how famous photoperiod families translate into autoflower form.
Yield can reach approximately 400–500g/m², giving Ultra Lemon Haze Auto a strong balance of speed, size and productivity. It suits both indoor and outdoor environments and develops its defining aroma, resin and flower structure within one automatic lifecycle. No change of lighting schedule is required to trigger flowering, which is the central characteristic separating autoflowers from normal photoperiod varieties.
Why Ultra Lemon Haze Auto Stands Out
Ultra Lemon Haze Auto stands out for an intense lemon-and-grapefruit profile backed by Haze brightness and Sour Diesel depth. It does not rely on a name alone: the combination of 19–21% THC, a 90–100 days lifecycle and flavours of sharp citrus, pink grapefruit, diesel gives it a clearly defined place within the Auto Seeds collection.
For collectors choosing between classic genetics and newer flavour-focused releases, Ultra Lemon Haze Auto offers a particularly convincing balance. Its parentage remains recognisable, yet the autoflowering format gives it a distinct identity rather than simply copying the original photoperiod version.
About Auto Seeds
Auto Seeds has specialised in autoflowering cannabis genetics since 2008, developing feminised automatic varieties from celebrated classic strains and modern hybrids. Its collection includes compact beginner-friendly releases, high-yielding autos and stronger contemporary genetics, with an emphasis on dependable seed quality, flavour and clearly defined characteristics.
Ultra Lemon Haze Auto Product Specifications
- Breeder: Auto Seeds
- Seed type: Feminised autoflowering
- Genetics: A sativa-dominant autoflower
- Lineage: Lemon Haze, Sour Diesel and Auto #1
- Lifecycle: Approximately 90–100 days
- Height: Approximately 60–140cm
- Yield: Approximately 400–500g/m²
- THC: 19–21%
- CBD: Below 1%
- Flavour: Sharp citrus, Pink grapefruit, Diesel
- Environment: Indoor and outdoor
- Pack sizes: Three or five feminised seeds
Frequently Asked Questions
Is Ultra Lemon Haze Auto autoflowering?
Yes. Ultra Lemon Haze Auto is a feminised autoflower that completes its lifecycle in approximately 90–100 days without relying on a change in light cycle to begin flowering.
What does Ultra Lemon Haze Auto taste like?
Its flavour combines sharp citrus, pink grapefruit and diesel, creating a layered profile with a clear beginning, middle and finish.
How many seeds are supplied?
Choose an original Auto Seeds breeder pack containing either three or five feminised seeds.
Why Buy from Kings Seedbank?
Kings Seedbank selects recognised and in-demand genetics so collectors can find notable releases without searching through thousands of average varieties.
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Legal Disclaimer
All cannabis seeds sold by Kings Seedbank are supplied strictly as adult souvenirs and for genetic preservation purposes only.
In the UK it is legal to buy and sell cannabis seeds, but it is illegal to germinate them. Customers outside the UK should check and comply with their own local laws before purchasing.
Buy Ultra Lemon Haze Auto cannabis seeds UK safely and securely as souvenirs or for genetic preservation.
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