Forbidden Runtz

Forbidden Runtz Cannabis Seeds by Growers Choice

Forbidden Runtz is a 70% indica-dominant hybrid cannabis seed strain from Growers Choice that crosses Forbidden Fruit (Tangie x Cherry Pie) with the legendary Runtz. She grows compact, bushy, and forgiving — topping out at 80–120 cm with dense, resin-caked buds that test between 25–30% THC. If you want a stocky plant that practically grows itself and rewards you with a fruit-salad aroma at harvest, this is the one.

Why Forbidden Runtz Seeds Deserve a Spot in Your Grow

We've seen a lot of indica hybrids come through the shop over the years, and the ones that stick around tend to share two traits: they're hard to mess up, and they smell incredible at chop. Forbidden Runtz ticks both boxes without breaking a sweat.

The genetics here are solid. On one side you've got Forbidden Fruit — an indica-dominant cross of Tangie and Cherry Pie that brings tropical citrus and deep berry notes to the table. On the other, Runtz — the US candy strain that took over coffeeshop menus and never left. Growers Choice combined them into something compact, resilient, and absolutely drenched in trichomes by week eight.

What makes her stand out from other indica seeds in the same price bracket? Forgiveness. Forbidden Runtz handles temperature swings, slight overfeeding, and underfeeding without throwing a tantrum. She responds well to training techniques like LST and topping, filling out her canopy evenly. And she's genuinely resistant to pests and most common pathogens — which matters a lot more than people think, especially in a first or second grow where mistakes happen.

The honest limitation: her dense foliage and thick buds can trap moisture. If you're growing outdoors, keep her sheltered from rain during late flowering. Indoors with decent airflow, it's a non-issue. But skip the dehumidifier at your own risk during the final two weeks — we've seen growers lose beautiful colas to bud rot simply because they didn't manage humidity in that last stretch.

Forbidden Runtz Aroma and Flavour Profile

Crack open a cured jar of Forbidden Runtz and the first thing that hits you is sweetness — not subtle, not background, but a full-on tropical fruit bowl. Think ripe mango, pineapple, and banana layered over a base of mixed berries and citrus peel. Then, just underneath all that candy-shop sweetness, there's a quiet spice note that rounds the whole thing out. It's reminiscent of the original Runtz but with more depth from the Forbidden Fruit side.

The resin production is genuinely impressive. By late flower, the buds are coated in a thick, sticky layer of fragrant trichomes that makes trimming a glove-destroying affair. If you're into extracts or dry sift, Forbidden Runtz is one of the better candidates we carry for that purpose — the trichome density is that good.

Growing Forbidden Runtz Seeds — Specifications and Yield

How to Grow Forbidden Runtz Seeds

1. Germinate your Forbidden Runtz seeds using the paper towel method or directly in a moist starter plug. Taproots typically emerge within 24–72 hours.
2. Transplant seedlings into their final containers once the first true leaves appear. A 10–15 litre pot works well indoors given her compact 80–120 cm stature.
3. During vegetative growth, take advantage of her bushy structure by applying low-stress training (LST) or topping early. She responds well and fills out her canopy evenly — short internodes mean plenty of bud sites without much effort.
4. Flip to 12/12 when she's reached roughly half your target height. Expect noticeable stretch in the first two weeks of bloom, then dense bud formation from week three onward.
5. Monitor humidity closely from week five of flower. Her thick foliage and dense buds trap moisture — aim for 45–50% RH during late bloom. Good airflow around and through the canopy is non-negotiable.
6. Outdoor growers: shelter plants from rain during the final weeks before harvest. A simple rain cover or polytunnel goes a long way toward preventing bud rot.
7. Harvest after approximately 8 weeks of flowering indoors, or by late September outdoors in the Northern Hemisphere. Trichomes should be mostly milky with some amber when checked under magnification.
8. Dry in a dark, well-ventilated space at 18–20°C and 55–60% RH for 10–14 days, then cure in sealed jars for at least two weeks. The fruit and spice aroma intensifies dramatically during cure.

Forbidden Runtz vs Other Indica Seeds from Growers Choice

If you're weighing Forbidden Runtz against other compact indica options, here's how she stacks up. Compared to a straightforward Runtz seed, Forbidden Runtz brings more complexity to the aroma — the Forbidden Fruit parentage adds tropical depth that plain Runtz doesn't have. The 25–30% THC range also puts her at the higher end of what Growers Choice offers.

For growers who want something even shorter and faster, autoflowering strains are worth a look — but you'll trade away some of the yield potential and training flexibility that a photoperiod like Forbidden Runtz gives you. We'd pick Forbidden Runtz over most autos if you have the space and patience for an 8-week bloom cycle. The quality of the end product justifies the extra week or two.