Mental Rainbow F1 Fast Version by Sweet Seeds

Mental Rainbow F1 Fast Version Strain Info

Mental Rainbow F1 Fast Version is a cannabis seed that takes the best from its legendary parents and packs it into a fast-flowering, resin-loaded powerhouse.

This strain is the result of a bold fusion between the iconic Rainbow Sherbert #11—a West Coast legend famous for its potency and flavor—and Sweet Seeds’ very own Papaya Zoap Auto®.

The result? A hybrid with explosive fruity flavors, mind-expanding effects, and a flowering time so short you’ll barely have time to blink before harvest.

With a genetic composition of 65% indica and 35% sativa, this plant carries the best of both worlds, delivering a perfect balance between relaxation and creative stimulation.

Flowering Time & Yield

If patience isn’t your thing, Mental Rainbow F1 Fast Version is here to save the day.

This strain is a photoperiod beast with an ultra-fast flowering cycle, wrapping up in just 7 to 8 weeks.

Indoors, under optimal conditions, it can produce between 450 and 500 grams per square meter (15.8 - 17.6 oz/3.3 ft²).

Outdoor growers can expect between 350 and 500 grams per plant (12.3 - 17.6 oz/plant), especially in a warm, sunny climate.

Thanks to its genetic heritage, this strain doesn’t just produce a lot—it does it fast, making it a dream come true for those who want top-quality marijuana seeds without the long wait.

Effects and Aroma

The first hit of Mental Rainbow F1 Fast Version is like a firework show for your senses.

Expect an immediate wave of euphoria that sparks creativity, boosts the mood, and keeps your mind buzzing with inspiration.

But don’t be fooled—this strain isn’t just about energy.

Soon enough, a deep, relaxing body high takes over, melting away stress and leaving you in a blissful state of contentment.

With THC levels ranging from 22% to 30%, this strain hits hard and lingers for hours.

The terpene profile is an exotic fruit explosion, blending the tropical sweetness of mango, papaya, and citrus with earthy, smoky, and spicy undertones.

Every puff feels like a bite into a fresh fruit salad sprinkled with mystery and depth, making it an irresistible treat for both the palate and the mind.

Whether you're looking for inspiration, a burst of happiness, or a ticket to relaxation, Mental Rainbow F1 Fast Version delivers it all in one beautifully balanced experience.

And since these are feminized cannabis seeds, every plant is a guaranteed bud-producing powerhouse, giving you the best results without the hassle.

Growing Tips & Our Take

If you’re looking for a fast, high-yielding strain that doesn’t ask for much, Mental Rainbow F1 Fast Version is a top contender.

This strain has a vigorous growth pattern and adapts well to different cultivation techniques, making it a solid choice for both beginners and experienced growers.

Thanks to its strong genetic background, it has a natural resistance to pests and diseases, reducing the chances of unwanted surprises in your grow.

It thrives best in a warm, Mediterranean-like climate with plenty of sunlight, but it also does well indoors with the right light cycle.

Since it develops a prominent central cola and dense lateral buds, we recommend using low-stress training (LST) or Screen of Green (ScrOG) techniques to maximize yields and airflow.

Humidity control is essential, especially during late flowering, to prevent any mold issues due to its thick, resinous buds.

For us, what truly stands out is how effortlessly it combines speed, potency, and flavor.

It’s rare to find a strain that delivers such a powerful high with an incredibly short flowering time, all while maintaining an exceptional terpene profile.

Whether you’re a commercial grower looking for a fast turnaround or a home grower eager for a top-tier strain without the wait, Mental Rainbow F1 Fast Version is a clear winner.

Strain Characteristics

• Genetics: Rainbow Sherbert #11 x Papaya Zoap Auto®
• Seed Type: Feminized Fast Version
• Indica/Sativa Ratio: 65% Indica / 35% Sativa
• THC Content: 22% - 30%
• CBD Content: ~0.1%
• Flowering Time: 7 - 8 weeks
• Indoor Yield: 450 - 500 g/m² (15.8 - 17.6 oz/3.3 ft²)
• Outdoor Yield: 350 - 500 g/plant (12.3 - 17.6 oz/plant)
• Difficulty: Easy to Moderate
• Resilience: High resistance to pests and diseases
• Ideal Climate: Warm, Mediterranean-like conditions
• Recommended Techniques: LST, ScrOG, proper humidity control
• Effects: Stimulating, Euphoric, Relaxing, Happy
• Flavors: Mango, Papaya, Citrus, Sweet, Earthy, Smoky, Spicy

Frequently Asked Questions (FAQ)

Is Mental Rainbow F1 Fast Version sativa or indica?

Mental Rainbow F1 Fast Version is a 65% indica and 35% sativa hybrid, meaning it offers the best of both worlds.

Indica strains are typically known for their compact growth, dense buds, and deeply relaxing effects, making them ideal for nighttime use.

Sativa strains, on the other hand, are famous for their tall, airy structure and energetic, cerebral highs that are perfect for daytime activities.

This strain leans more towards indica, with a compact yet vigorous structure, a quick flowering time, and a high that starts off uplifting before settling into a relaxing body buzz.

How long does it take for Mental Rainbow F1 Fast Version to flower?

This strain has an ultra-fast flowering time of just 7 to 8 weeks, making it one of the quickest photoperiod strains available.

If you’re growing outdoors, expect to harvest around late summer or early autumn, depending on your climate.

Does Mental Rainbow F1 Fast Version grow well indoors?

Yes, this strain performs exceptionally well indoors, thanks to its compact growth and fast flowering cycle.

With proper lighting and environmental control, you can maximize its resin production and yield.

Is Mental Rainbow F1 Fast Version resistant to pests and diseases?

Yes, this strain has high resistance to common pests and diseases, making it a reliable choice for growers looking for a low-maintenance plant.

However, due to its dense buds, we recommend maintaining good airflow and humidity control to prevent mold issues.

What is the best climate to grow Mental Rainbow F1 Fast Version?

This strain thrives in warm, Mediterranean-like conditions with plenty of sunlight.

However, its fast flowering time also makes it a great option for growers in regions with shorter summers.

How potent is Mental Rainbow F1 Fast Version?

This strain packs a serious punch, with THC levels ranging from 22% to 30%, making it one of the strongest fast-flowering strains on the market.

Its effects are powerful and long-lasting, perfect for those looking for both a cerebral boost and full-body relaxation.