Do-Si-Dos (Fast) Feminized

What makes Do-Si-Dos Fast Feminized worth growing?

Do-Si-Dos Fast Feminized is a photoperiod indica built to finish in 42 to 49 days of flowering, about six to seven weeks, instead of the 8 to 9 weeks a standard Do-Si-Dos needs. It keeps 21-23% THC, a berry-and-grape aroma and dense, resinous flowers, and it suits Canadian growers racing the first autumn frost.

The numbers carry the pitch: 21-23% THC, a 42 to 49 day bloom, 350 to 500 g/m² indoors and up to 700 g per plant outdoors. Plantation Premium Seeds starts from the Girl Scout Cookies × Face Off OG lineage behind the classic Do-Si-Dos and adds a fast-flowering parent that tightens the flowering window, without giving up the resin or the flavour.

The name can mislead. Fast Version does not mean autoflower. This plant still waits for the 12/12 flip indoors, or for the shortening days of late summer outdoors, so you set the calendar and you decide how long to veg. Outdoors in Quebec, along the St. Lawrence, it is ready in early to mid-September, which keeps the harvest ahead of the cold, wet autumn; the guide to growing cannabis outdoors in Canada shows how to plan for a September harvest.

Where does Do-Si-Dos Fast Feminized come from genetically?

The lineage is a three-way cross: Girl Scout Cookies, Face Off OG and a fast-flowering parent. The first two parents bring the berry sweetness, the dense resin and the heavy indica body effect that made Do-Si-Dos famous, while the third parent, left unnamed, is the one that shortens flowering to 42-49 days instead of 8 to 9 weeks.

Girl Scout Cookies, or GSC, is itself a cross of OG Kush and Durban Poison. It gives the sweet, earthy complexity, the sky-high resin production and the frosted look of the finished flower; the Girl Scout Cookies Feminized page covers that parent on its own.

Face Off OG is the other named parent, and it comes from the OG Kush family. It adds the deep body effect, the fuel-and-earth undertone under the sweetness and a sturdy structure that handles training well.

The fast-flowering parent is what makes this the Fast Version. It compresses flowering while the plant keeps responding to the light cycle like any photoperiod.

What does Do-Si-Dos Fast Feminized smell, taste, and feel like?

The nose leads with berry, grape and sweet notes. Fresh flowers smell floral and fruity, and after a proper cure the sweetness deepens into a wine-like grape richness. Myrcene dominates the terpene profile and sets a musky, fruity base for everything else in the jar.

Six terpenes work together here: myrcene, caryophyllene, limonene, linalool, humulene and pinene. Caryophyllene adds a light spice, limonene lifts the first inhale with citrus, linalool brings a soft floral note, humulene keeps an earthy, hoppy edge and pinene adds freshness. Our guide to cannabis terpenes explains what each one does.

On the palate the smoke is smooth and full-bodied. The berry and grape flavours carry from the nose to the exhale, with a sweet, slightly earthy finish that lingers.

The effect is listed as powerful, and it earns the word. At 21-23% THC the onset is fairly quick and settles into deep body relaxation, true to its indica heritage. It is an evening strain, for the end of the day rather than for work. For more on the type, see our guide to indica cannabis seeds.

How do you grow Do-Si-Dos Fast Feminized indoors and outdoors?

Do-Si-Dos Fast Feminized is a manageable grow for anyone with a few cycles behind them. It is not a beginner trap, and it does not demand constant attention either. The feminized genetics remove the need to sex plants, and the indica structure keeps the canopy compact and easy to manage.

Indoors, keep the vegetative phase under 18/6 light, then flip to 12/12 to trigger flowering. Because the flowering window is short, the transition happens quickly. Early-flower stretch is moderate, around 30 to 50% above the vegetative height, so plan the canopy and avoid flipping too late in a low tent.

The bushy, multi-branched form takes well to training that spreads the branches and gives many bud sites of even height. Train early, since the 42 to 49 day bloom leaves little time to repair a canopy later.

It suits indoor, outdoor and greenhouse climates. Outdoors, the plant flowers naturally as daylight shortens in late summer and finishes in early to mid-September. In Quebec, along the St. Lawrence, that short bloom is a buffer against the cold, wet days of early autumn. Dense buds hold moisture, so watch for mould in a rainy September.

What can you expect at harvest from Do-Si-Dos Fast Feminized?

Flowering takes 42 to 49 days from the start of the 12/12 phase, about six to seven weeks. For an indica with this much resin, that is a fast turnaround, and the gain over the 8 to 9 weeks of the standard version is a measurable 10 to 15 days, not a marketing line.

Indoors, expect 350 to 500 g/m². The low end reflects a basic setup, the high end an optimized room with trained plants and strong lighting. Outdoors, with full sun, enough root space and a long vegetative period, a single plant can reach 700 g.

The 42 to 49 days run from the 12/12 flip, so the whole schedule is in your hands: the longer you veg, the bigger the plant at the flip, and the stretch of 30 to 50% in early flower is the number to plan the tent around.

Outdoors, at the end of the 42 to 49 day window, which fits the early to mid-September harvest, the trichomes are mostly cloudy with amber starting to appear. Harvest at roughly 10 to 20% amber for peak potency, or wait until 20 to 30% for a heavier, more sedative effect. Watch the trichomes, not only the calendar.

What are the best tips for growing Do-Si-Dos Fast Feminized?

• Top early and train wide. Top at the fourth or fifth node, then use low-stress training to spread the branches. Since the bloom is compressed, the canopy structure should be in place before the flip, not during late veg.

• Control humidity in late flower. The dense buds that look so good are also prone to bud rot if humidity climbs above 50% in the last two weeks. Keep strong airflow and relative humidity between 40 and 50% as harvest approaches.

• Feed conservatively. The strain is moderately sensitive to excess nitrogen, especially in late veg and early flower. Taper nitrogen at the flip and move to a bloom-focused feed to avoid tip burn.

• Judge harvest by the trichomes. A jeweller's loupe or a digital microscope is a cheap tool for a decision that changes the effect of the batch.

• Dry and cure with patience. Dry slowly in a cool, dark room for around 18 days (15 to 18 °C, never above, and about 60% relative humidity, with no heat), then cure for at least two weeks in sealed glass jars, opening them daily during the first week. The berry and grape notes develop mostly in the cure, and a rushed one never reaches its potential.