Do Si Dos Seeds: Genetics, Flowering Time & Grow Tips

Shopping for do si dos seeds usually starts with the name recognition — Do Si Dos (also spelled Dosidos or Do-Si-Dos) has become one of the most influential Cookies-family crosses of the last decade, parenting strains that dispensary shelves are still built around. This grow guide covers where the genetics come from, what the plant demands from a grower, and what to expect once it’s cured and jarred.

Do Si Dos Seeds: Genetics Behind the Cross

Do Si Dos was bred by Archive Seed Bank in Portland, Oregon, crossing OGKB — a Girl Scout Cookies phenotype — with Face Off OG. That combination produced an indica-leaning plant influential enough to parent a long list of modern strains, including Slurricane and Peanut Butter Breath. Growing Do Si Dos from seed is a chance to work with genetics that sit close to the root of several strains that came after it.

Expect a medium-height plant indoors, THC testing around 24%, and roughly 500g per plant when grown outdoors in favourable conditions. The nose runs sweet and floral with fresh lime and pine layered over classic OG earthiness, and limonene leads the terpene profile, backed by caryophyllene and linalool.

Flowering Time and Grow Difficulty

Do Si Dos flowers in 8 to 9 weeks, and outdoor plants typically finish around the start of October, which makes it a realistic outdoor option for growers in southern BC and Ontario during a dry autumn. Indoors, the plant stays at an average height, though it can stretch noticeably taller when grown outdoors, so vertical space planning matters more for an outdoor grow than an indoor tent.

Grower Tips

A few habits make a real difference with this strain:

• Top the plant once and train branches flat — Do Si Dos rewards an even canopy with more top colas rather than a single dominant cola.
• Defoliate lightly around week three of flower to open up airflow around the dense, rock-hard buds this strain is known for.
• Cool nights late in flower can bring out purple tones in the leaves and buds, adding visual appeal to the finished jar.
• Stake or net the main colas by mid-flower — the heavy buds can bend branches without support.

What the Finished Flower Delivers

On the smoke, Do Si Dos delivers sweet cookie dough up front with a pungent, earthy finish. The high hits early and heavy — a stoney head change that gradually settles through the body — which is why most growers who’ve run this strain end up keeping the harvest for late evenings rather than daytime use. That combination of a heavy body settle and dense, flavourful bud is a big part of why the do si dos strain has stayed relevant long after its initial release.

Why Grow From Seed Instead of Buying Flower

Growing Do Si Dos from feminized seed means full control over the cure, the training approach, and the final trichome development — variables that are locked in by the time flower reaches a dispensary shelf. For growers who already know they like OGKB or Face Off OG genetics, starting from seed is the only way to actually influence how those traits express in the finished plant.

Choosing Between Indoor and Outdoor Grows

Do Si Dos performs differently depending on where it’s grown, and that’s worth planning around before germinating seed. Indoors, the plant stays at a medium, manageable height that suits a standard grow tent without much extra vertical space planning. Outdoors, the same genetics can stretch considerably taller, which means outdoor growers need to budget more room and may want to consider topping earlier to keep the canopy manageable. Climate matters too — since outdoor plants typically finish around the start of October, growers in regions with early autumn rain or frost risk should weigh whether an indoor or greenhouse setup is the safer bet for this particular strain.

Curing for Flavour

Given how much of Do Si Dos’ appeal comes down to its terpene profile — that mix of lime, pine and cookie dough sweetness — a patient cure after harvest pays off more than it does with less aromatic strains. Slow-drying in a controlled environment before committing to jars, and burping those jars regularly in the first few weeks, helps lock in the limonene-forward profile rather than losing it to a rushed dry.

Frequently Asked Questions

How long does Do Si Dos take to flower?

Do Si Dos flowers in 8 to 9 weeks, with outdoor plants typically ready around the start of October in favourable climates.

What yield should I expect from Do Si Dos seeds?

Outdoor plants in good conditions can produce roughly 500g per plant, with THC testing around 24%.

Is Do Si Dos indica or sativa?

Do Si Dos is indica-leaning, bred from OGKB (a Girl Scout Cookies phenotype) and Face Off OG, and is generally associated with a heavy, settling evening effect.

Ready to grow one of the most influential Cookies-family crosses yourself? Buy Do Si Dos Feminized Seeds at The Seed Pharm, browse the full feminized seeds collection, or check out our grow guides for Slurricane and Oreoz, two more Cookies-family descendants.