Mango Cherry Runtz Auto unites two of the most decorated autoflowers of 2025. Mango Runtz F5 Auto from Mephisto Genetics was named Best New Autoflower 2025 at the Autoflower World Cup, and Fast Buds’ own Lemon Cherry Cookies Auto took Best Auto Hybrid 2025 at the American Autoflower Cup and Strain of the Year 2025 at The Grow Awards.
The aim was to blend Mango Runtz’s compact frame, quick finish and terp-loaded buds with the color, potency and dessert flavor of Lemon Cherry Cookies. The result is an F1 hybrid feminized autoflower with up to 28.5% THC and a 65% indica / 35% sativa balance.
No light change is needed: autoflowers bloom on their own, so 18/6 or 20/4 works from seed to harvest, which comes in about 8 weeks. Fast Buds rates it XL, at 70-110 cm (28-43 in), with indoor yields of 450-550 g/m² (1.5-1.8 oz/ft²) and 60-180 g (2-6 oz) per plant outdoors.
Fast Buds’ first impressions describe a stocky, bushy plant with short internodal gaps that fits small tents and still delivers a strong harvest for its size.
Mango, Cherry and Cookie in One Jar
The terpene profile is layered. Tropical mango sweetness sets the base, then cherry candy and tart citrus join in, ending on a creamy, cookie-like note with a light spicy touch. The flavor carries straight from the aroma into the smoke, bold and long lasting.
Bag appeal is a big part of the package. Under the right conditions, the dense, resin-coated flowers can take on deep purple hues, inherited from the Lemon Cherry Cookies side.
With its high THC ceiling and indica-leaning genes, this is a potent auto best suited to experienced consumers or to relaxed sessions where you have time to enjoy it.
Built for Small Spaces
Mango Cherry Runtz Auto is a good match for compact tents, closets and balconies. Its tight node spacing keeps the canopy dense, so light defoliation in mid-bloom helps airflow and lets light reach the lower bud sites.
Use a quality soil or coco mix, keep feeding moderate and avoid heavy stress late in the cycle. Low-stress training in the first weeks spreads the plant out for even, chunky colas.
Mango Cherry Runtz Auto Characteristics
| Strain type | Autoflowering (feminized) |
| Genetics | Mango Runtz F5 Auto x Lemon Cherry Cookies Auto (F1 hybrid) |
| Indica/Sativa | 35% Sativa / 65% Indica |
| THC | Up to 28.5% |
| CBD | Less than 1% |
| Flavor | Mango, cherry candy, sour citrus, creamy cookie, spicy |
| Indoor yield | 450-550 g/m² (1.5-1.8 oz/ft²) |
| Outdoor yield | 60-180 g/plant (2-6 oz/plant) |
| Seed to harvest | About 8 weeks |
| Height | 70-110 cm (28-43 in), XL size class |
| Climate | Indoors, outdoors, greenhouse or mixed-light; any season with warm, stable weather outdoors |
| Best cultivation technique | LST and light defoliation |
FAQ
What are the parents of Mango Cherry Runtz Auto?
It is an F1 cross of Mango Runtz F5 Auto from Mephisto Genetics and Fast Buds’ Lemon Cherry Cookies Auto.
Which awards are in its lineage?
Mango Runtz F5 Auto was Best New Autoflower 2025 at the Autoflower World Cup. Lemon Cherry Cookies Auto won Best Auto Hybrid 2025 at the American Autoflower Cup and Strain of the Year 2025 at The Grow Awards.
How strong is Mango Cherry Runtz Auto?
Fast Buds lists THC at up to 28.5%, which puts it among the more potent autos in the catalog.
Is it good for small grow spaces?
Yes. It grows as a sturdy, bushy plant with tight internodes and stays at 70-110 cm (28-43 in), so it suits compact setups.
What does it taste like?
Tropical mango up front, then cherry candy and tart citrus, ending on creamy cookie with a light spicy note.
How long until harvest?
About 8 weeks from seed, with the lights at 18/6 or 20/4 the entire time.
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