Auto Colorado Cookies is a Dutch Passion autoflower with a sweet, tropical cookie flavor and a relaxing effect. From Auto Blueberry x Girl Scout Cookie, it is an indica-dominant plant at 15-20% THC with a mango-and-cream fruitiness over a cookie base. Easy to grow, compact, and reliable, it is a satisfying dessert-strain autoflower for growers of all levels.
This is an autoflower, so it flowers on age rather than a change in the light cycle, which keeps the grow simple. The figures below are Dutch Passion breeder values; check your own pack for the exact numbers.
Recommended Strains
Auto Colorado Cookies
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THC | 15% - 20% (Medium) |
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Lineage | Auto Blueberry X Girl Scout Cookie |
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Type | Autoflowering |
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Height | 3.94 ft | 1.2 m |
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Yield | Medium |
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Yield Indoor | 1.47 oz/ft² | 450 g/m² |
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Yield Outdoor | 3.53 oz/plant | 100 g/plant |
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Life Cycle | 11 weeks |
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Phenotype | 80% Indica / 20% Sativa |
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Effects | Powerful, Relaxed |
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Flavors | Tropical, Mango |
Auto Mokum´s Tulip
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THC | 15% - 20% (Medium) |
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Lineage | (Gelato x Sherbert) x Auto Colorado Cookies |
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Type | Autoflowering |
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Height | 4.59 ft | 1.4 m |
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Yield | High |
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Yield Indoor | 1.31 - 1.64 oz/ft² | 400 - 500 g/m² |
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Life Cycle | 11 - 12 weeks |
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Phenotype | 50% Indica / 50% Sativa |
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Effects | Powerful, Giggly, Happy |
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Flavors | Sweet, Floral, Cream, Fruity |
Auto Colorado Cookies Grow Info
| Trait | Auto Colorado Cookies (Dutch Passion) |
| Genetics | Auto Blueberry x Girl Scout Cookie |
| Seed type | Autoflowering |
| Genetic profile | 80% indica / 20% sativa |
| THC | 15-20% (medium) |
| Full life cycle | About 11 weeks from germination |
| Height | Around 1.2 m |
| Indoor yield | 450 g/m² |
| Outdoor yield | Around 100 g per plant |
| Effects | Relaxed, powerful |
| Flavor | Tropical, mango, sweet, creamy cookie |
These are Dutch Passion’s published figures for the Auto Colorado Cookies line at Growlantis. When you need an exact THC percentage, height, or yield, check the specification on your own Auto Colorado Cookies seed pack.
What Makes Auto Colorado Cookies Worth Growing
Flavor and ease are the draw. The Auto Blueberry and Girl Scout Cookie parents give it a rich, layered taste, tropical mango and sweet cream over a cookie base, that stands out in a jar. On an easy, compact autoflower, it is a lot of flavor for little effort.
The effect is relaxing and comfortable at a sensible 15-20% THC, an indica-led body feel that suits an evening wind-down without being overwhelming. Yields are a solid medium at 450 g/m² indoors, and the plant stays compact and forgiving, which makes it a good choice for beginners and a reliable repeat for experienced growers.
Is Auto Colorado Cookies Indica or Sativa?
Auto Colorado Cookies is indica dominant, listed at 80% indica and 20% sativa, with ruderalis in the mix for its autoflower timing.
That shows in both the plant and the high. The plant is compact, sturdy, and resinous, easy to manage. The effect is a relaxing, comfortable body feel with just enough lift from the small sativa and cookie heritage to keep it pleasant, so it leans toward evening and nighttime use.
Flowering Time vs Full Grow Time
Autoflowers confuse a lot of growers on timing, so it is worth being precise.
- Full grow time (seed to harvest): about 11 weeks. This is the figure Dutch Passion publishes, and it covers the whole cycle from germination to a ready plant.
- Flowering stage: this happens inside that 11 week window, not after a separate long veg period, with the plant moving into bloom on its own partway through.
The takeaway: do not treat 11 weeks as flowering and then add veg on top. Plan around the full seed-to-harvest cycle, which runs a little longer than the fastest autos.
Does Auto Colorado Cookies Need a 12/12 Light Cycle?
No. Auto Colorado Cookies flowers on age, not day length, so it never needs a 12/12 photoperiod to bloom.
Indoors you can hold a longer schedule like 18/6 or 20/4 from seedling to harvest. Dropping to 12/12 once flowering starts only cuts daily light and costs you yield. Keep the longer schedule and strong light instead.
Auto Colorado Cookies Grow Timeline, Week by Week
Treat this as a development pattern, not a fixed schedule, since phenotype and environment shift the dates.
- Weeks 1-2: germination and seedling. The taproot and first leaves establish. Keep water light and conditions stable.
- Weeks 3-4: vegetative growth. The plant builds a compact frame and may show preflowers. Start gentle low stress training while stems are soft.
- Weeks 5-6: stretch and bud set. Vertical growth slows and flower sites fill in. Water demand rises.
- Weeks 7-10: main flower development. Dense, resinous buds build and the tropical, sweet aroma develops.
- Week 11 and finish: maturation and harvest. Most plants finish here. Judge ripeness by the trichomes, not the day count.
Choosing Your Setup: Space, Light and Pots
Auto Colorado Cookies is easy to house. At around 1.2 m it fits a standard tent, and its compact structure needs little vertical room beyond the early flowering stretch.
Light drives the yield, so give it a good source. A full-spectrum LED at 25-35 watts per square foot on an 18-20 hour schedule keeps the buds dense. Add an inline exhaust fan and a carbon filter for the sweet aroma.
Plant straight into the final 3-5 gallon fabric pot and skip transplanting, which autos dislike. Fabric pots air-prune the roots and keep the root zone healthy across the cycle.
Germinating and Raising Seedlings
The paper towel method is the easy, reliable start. Soak the seeds for 12-24 hours, then set them between damp paper towels on a covered plate, kept dark and warm at 70-85°F (21-29°C). A taproot usually shows in two to three days.
When the taproot reaches about 1-2 cm, plant it root-down a knuckle deep in a light mix and keep the surface moist until the seedling breaks ground. Hold off on nutrients at this stage. New to germination? Our beginner growing guides walk through it step by step.
The Vegetative Stage and Low Stress Training
Veg is short on an auto, so use these weeks to build a wide, even frame. Keep nitrogen available, hold temperatures in the low to mid 70s°F, and start gentle low stress training while the branches bend easily.
Low stress training is the technique that pays off here. Tying the main branches outward opens the compact canopy and gets light to the lower buds, which adds weight. Skip topping and other high-stress cuts, since an autoflower has little time to recover before the clock flips it into flower.
Feeding and Watering Auto Colorado Cookies
Keep feeding light. Autos run smaller root systems, so start nutrients at about half the label strength and build up only if the plant asks. Use a nitrogen-forward base through veg, then move to a bloom formula higher in phosphorus and potassium as flowering sets in, watching the leaves for burn.
Water by root-zone moisture, not a timetable. A young plant needs very little, and soaking the whole medium starves the roots of oxygen. As the plant grows, demand climbs, so increase water gradually by pot weight and how fast the top layer dries.
Flowering and Knowing When to Harvest
Flowering begins on its own around week four, with a short stretch and the first pistils, then dense, resinous buds build over the back half of the cycle. The tropical, mango, and sweet cookie aroma develops, so keep air moving and run a carbon filter indoors.
As the 11-week finish approaches, let the plant decide. Check trichomes under a loupe and harvest when most are cloudy with a few amber for the fullest relaxing effect. After the cut, hang the branches in the dark at about 60°F (15-16°C) and 55-60% humidity for 7-14 days, then cure in jars, burping daily for the first weeks to protect the sweet flavor.
Growing Indoors vs Outdoors
Indoors is where Auto Colorado Cookies is at its best. Hold 18/6, keep a lightly trained canopy under strong light, and the 450 g/m² indoor yield is reachable in a standard tent.
Outdoors, the autoflower trait lets you plant after the last frost and harvest in about eleven weeks. Outdoor yields are modest at around 100 g per plant, so this strain earns its keep indoors. Give outdoor plants full sun and well-draining soil.
How Tall and How Much? Height and Yield
Height is easy to plan for. Auto Colorado Cookies stays around 1.2 m, compact enough for a standard tent with little training needed beyond opening the canopy.
On yield, it is a medium producer: 450 g/m² indoors under good light and around 100 g per plant outdoors. Strong light and an open, lightly trained canopy are the main ways to push the indoor figure toward the top of its range.
Best US Climates for Auto Colorado Cookies
As a compact, hardy autoflower, Auto Colorado Cookies is flexible. Its cycle suits the Pacific Northwest and northern states, finishing before the fall weather, and it grows easily in California and the warm West too.
In the humid Southeast, keep airflow up around the dense buds late in flower. Its compact size also makes it a strong indoor choice anywhere, which is where it yields best. For a strain with similar cookie heritage, see our Wedding Cake Auto grow guide.
Common Problems When Growing Auto Colorado Cookies
A few predictable issues are easy to avoid.
Expecting big outdoor yields
Outdoor returns are modest at around 100 g per plant. The medium yield is an indoor figure, so lean on indoor light if weight is the goal.
Overfeeding a small auto
The compact auto root system burns easily. Start nutrients at half strength and increase only on demand, reading the leaves rather than following the bottle.
Overwatering early
A young plant in a big final pot needs very little water. Soaking the whole medium starves the roots of oxygen during the most time-sensitive part of the grow. Water to demand.
Harvesting by the calendar
The 11-week finish is a reference, not a cutting date. Read the trichomes and flower maturity before you cut, since phenotype and environment shift the timing.
Making the Most of Your Harvest
Do not waste the trim. The resinous sugar leaves make good bubble hash, dry sift, or infused oil that keeps the sweet, tropical flavor. The stems, roots, and fan leaves compost well and feed your next grow.
Is Auto Colorado Cookies Right for You?
If you want an easy, compact autoflower with a sweet tropical cookie flavor and a relaxing effect, yes. It is forgiving, reliable, and productive indoors, which makes it a great dessert-strain choice for beginners and a dependable repeat. Just set outdoor yield expectations modestly. For a strain with similar cookie heritage, see our Wedding Cake Auto grow guide.
Frequently Asked Questions
Is Auto Colorado Cookies indica or sativa?
Auto Colorado Cookies is indica dominant, listed at 80% indica and 20% sativa, with ruderalis for its autoflower timing, from Auto Blueberry and Girl Scout Cookie. It grows compact and resinous, and the effect is a relaxing, comfortable body feel with a pleasant lift, leaning toward evening and nighttime use.
Does Auto Colorado Cookies need a 12/12 light cycle?
No. Auto Colorado Cookies flowers automatically with age, not day length, so it never needs a 12/12 schedule. Indoors you can hold a longer photoperiod like 18/6 or 20/4 from seedling to harvest. Reducing the light once flowering starts only lowers your daily light and costs yield.
How long does Auto Colorado Cookies take to grow?
Auto Colorado Cookies finishes its full seed-to-harvest cycle in about 11 weeks from germination, a little longer than the fastest autos. That figure covers the whole cycle, not just flowering, with the plant moving into bloom on its own. Judge the finish by trichome maturity rather than the day count.
How much does Auto Colorado Cookies yield?
Auto Colorado Cookies is a medium yielder, at around 450 g/m2 indoors under strong light and about 100 g per plant outdoors. It performs best indoors. Strong light and an open, lightly trained canopy are the main ways to push the indoor figure toward the top of its range.
How tall does Auto Colorado Cookies grow?
Auto Colorado Cookies stays around 1.2 m, compact enough for a standard tent. It needs little training beyond gentle low stress work to open the canopy, and most of its height comes during the early flowering stretch, so it is simple to keep in bounds in a small space.
What does Auto Colorado Cookies taste like?
Auto Colorado Cookies has a sweet, layered flavor: tropical mango and cream from its Auto Blueberry side over a cookie base from Girl Scout Cookie, with some piney sweetness. The taste comes through strongest after a careful dry and cure, so take your time at harvest to protect those sweet notes.
Can you clone Auto Colorado Cookies?
Not usefully. As an autoflower, a cutting keeps the mother’s age, so it tries to flower straight away as a tiny plant and yields almost nothing. If you want more plants, germinate more seeds. Cloning only makes sense with photoperiod strains, not with autoflowers like this one.
