Chem Set Ultra images
| CBD | Low |
|---|---|
| Genetics | Sativa-dominant |
| Effects | Heady, euphoric, active, focused, creative and physically relaxing |
| Flavors | Chemical diesel, sour lemon, earth, spice, gas and fresh herbal notes |
| Terpenes | Limonene, caryophyllene and myrcene |
| Indoor flowering | 8-10 weeks |
Chem Set Ultra's defining trait shows up before you even start growing: its aromatic profile is deliberately punchy. This strain moves between gas, diesel, fuel and sharp chemical notes, joined by damp earth, sour citrus, fresh mint, pine and skunk. Depending on the phenotype, a creamy or cheesy background can also come through.
It's a recent feminized photoperiod plant, sativa-dominant and rooted in the Chem world. Its exact lineage hasn't been published, so we don't present a fixed cross as if it were confirmed. The available references place it within a modern Chem family, aromatically related to lines such as Chemdawg, Sour Diesel, Chem 4DD, Tagalongz and similar gassy, chemmy selections.
In the grow it can develop a hybrid, sativa-leaning structure with notable vigor, medium to medium-tall height and good branching when given room. The flowers can finish dense, frosty and loaded with abundant resin, with a particularly strong smell during bloom.
Going by our breeders' references, Chem Set Ultra suits an intermediate-level grower who knows how to keep vigor and possible stretch in check. Estimated flowering is 8 to 10 weeks, although some phenotypes closer to Chemistry Set S1 may finish at around 8-9 weeks.
Indoors, pay special attention to airflow and use a carbon filter because of the intense smell. It can also respond well to pruning, LST, staking and SCROG to control height and let more light into the canopy. Outdoors, it makes more sense to give it a spot in your yard with enough room to branch out and develop freely. As a practical tip, plan your height control before the stretch rather than trying to fix it once flowering is well underway.
Closely related lines from this family, such as Chemistry Set S1, stand out for dense buds with sticky resin and an aromatic mix of gas, diesel, earth, citrus and cheese. We treat this as a genetic family reference, not as a confirmed description of every Chem Set Ultra phenotype.
Its expected profile starts with a clear head lift that's euphoric, active, focused and creative. It can fit moments of mental activity, conversation or any situation where you want a stimulating experience. If you're sensitive or have a low tolerance, its heady character may feel intense.
Over time, that buzz can give way to steadier, calmer body relaxation without necessarily ending in heavy sedation. Related Chem genetics are known for exactly this contrast between a light, clear head and a more noticeable body presence.
On the senses, Chem Set Ultra isn't trying to be sweet or subtle. It's more like opening a door onto a room thick with fuel, dry chemicals and damp earth, before sour lemon, spice and fresh herbal notes drift in. It's a pungent, lingering profile built around limonene, caryophyllene and myrcene.
Bulk Genetics' Chem Set Ultra seeds are made for growers after a recent, sativa-dominant feminized plant with strong resin production and an aroma that makes no attempt to fly under the radar. We offer free shipping on orders over $99, and every package ships 100 % discreetly.
We ship within the US with tracking, offer free shipping on orders over $99 and keep our prices cheap so current genetics are easy to get. If you're looking for seeds with a chemical, fuel and skunk presence, Chem Set Ultra packs exactly that character without posing as a classic or over-documented strain.
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Chem Set Ultra is a sativa-dominant feminized strain with a hybrid structure and a tendency toward vigor and stretch.
Its indoor flowering time is estimated at 8 to 10 weeks. Some phenotypes closer to Chemistry Set S1 may finish at around 8-9 weeks.
Given its vigor, possible stretch and powerful aroma, it's better suited to an intermediate grower who can manage height, airflow and branch training.
