Blue Runtz (F1) Seeds

The Strength of Blue Runtz (F1)

With THC levels ranging from 22% to a sky-high 29%, this strain delivers a blissful combo of uplifting euphoria and a deep, soothing body buzz.

Known for its high potency

It’s the kind of smoke that hits both the mind and body — perfect for winding down, finding your zone, or just enjoying a flavorful, powerful session any day of the week.

Feel the High of Blue Runtz (F1)

This high-THC hybrid strain is pure feel-good fuel. Known for its smooth, fruity smoke and balanced effects, this exotic weed strain hits fast with a burst of euphoria that clears your head and lifts your mood.

As the high settles in, a relaxing body buzz kicks in — mellow, tingly, and perfect for unwinding without total couchlock. It's the kind of smoke that gets you laughing, vibing, and completely in the zone. People love lighting up this sweet-tasting cannabis strain for its balanced head-to-body experience, especially when they want to chill without crashing.

And yes — it definitely brings on the munchies, so keep your snacks close. If you're chasing top-shelf hybrid flower that delivers flavor, potency, and all-day vibes, this powerhouse blueberry candy strain is one you’ll reach for again and again.

Responsible marijuana use within one's tolerance levels can produce pleasant effects- avoid excessive intake.

The Flavor of Blue Runtz (F1)

This candy-coated hybrid strain is bursting with flavor from the first hit. On the inhale, you get a rush of sweet blueberry and tropical citrus, followed by creamy notes and a hint of that classic sugary Runtz finish. It’s smooth, flavorful, and seriously addictive to puff on.

The bold taste comes from a terpene lineup loaded with limonene, which brings out the bright citrus pop, myrcene for that rich berry depth, and caryophyllene, adding a subtle spicy kick that rounds it all out. Smoking this fruity kush strain is like hitting a bowl of blue candy — sweet, gassy, and satisfying all the way through the exhale.

Flowering Time 49-63 Days

-- Outdoor Grow (Full Sun / In Ground) --
Height: 6 Ft Plus
Yield: 1 1/2 - 2 Plus lbs. Cured

How to Grow Blue Runtz (F1) Marijuana Indoors and Outdoors

What to Watch for When Growing Blue Runtz - This sugary-scented strain has decent natural resistance, but dense buds mean you still need to stay on top of humidity and airflow. Keep the humidity in check, prune early, and use Holi Moli Eliminator in veg and throughout folower to prevent mold, mildew, bud rot, and pests issues before they start.

Temperature Swings: This beauty prefers a stable environment. While it can handle mild fluctuations, avoid drastic drops below 60°F at night or spikes above 85°F during the day. Big temp swings can stress the plant, slow growth, and reduce trichome production.

Nutrient Sensitivity: It isn’t too picky, but go easy on nitrogen during bloom. Overfeeding can cause clawing or dull the flavor. Stick with cannabis-specific nutrients like Holi Moli Juice (an all-in-one bottle from veg to harvest) and keep your pH balanced.

Odor Control: She gets loud by week 4 of flower with a sweet, gassy funk that fills the room fast. If you're growing indoors and want to stay discreet, a carbon filter is a must.

Stretch: This strain has a moderate stretch after the flip — about 1.5x its veg height. Pro Tip: To keep things controlled, flip to 12/12 when your plants hit 20–24 inches (around 5 to 6 weeks old).

Branch Support: The buds on this flavor-packed THC strain get chunky and heavy, especially in weeks 6–8. Add bamboo stakes, soft ties, or a trellis net by week 3 of flower to keep colas upright and prevent breakage under weight.

Best Climate to Grow Blue Runtz Cannabis

This high-yield dessert weed strain thrives in a warm, dry climate where it can soak up long hours of sunshine and enjoy a consistent, natural breeze. Choose a sunny, open spot that gets at least 6–8 hours of direct sunlight per day, and make sure there’s plenty of airflow to help the buds stay dry and healthy as they stack.

Even in dry climates, morning dew and late-season moisture can creep in — especially as harvest approaches. To stay ahead of it, water early in the morning so your plants have time to dry out by sundown. Mulch around the base of each plant to retain just enough soil moisture while helping regulate root-zone temperature.

Prune lower branches early in the grow to keep airflow strong at the base, and be sure to place grow bags on well-draining ground like gravel or breathable garden fabric — not on concrete or heat-trapping surfaces. For extra protection, apply Holi Moli Eliminator during veg and flower to prevent bud rot, mildew, and pests before they start.

Grow Bag Sizes & Spacing:

• 5-gallon bags – 2.5–3 feet apart
• 10-gallon bags – 3.5–4 feet apart
• 15-gallon bags – 4.5–5 feet apart
• 20-gallon bags – 5–6 feet apart

How to Grow Blue Runtz Marijuana in Subtropical Climates

This blueberry candy weed strain can be successfully grown in hot arid subtropical climates, but it needs a bit of extra care to thrive under intense sun and low humidity.

Start by placing your plants in a sunny, open area with steady natural airflow, avoiding spots near fences or walls that trap heat. Use light-colored fabric grow bags for better root aeration and to prevent overheating — and never use black containers, as they absorb too much heat.

If temps get extreme, you can use light shade cloth during the hottest hours of the afternoon to protect your canopy without blocking airflow.

To manage humidity and moisture in these dry conditions, water early in the morning so plants have time to hydrate and dry out before the heat peaks. Add mulch around the base of each plant to keep the root zone cool and retain moisture. Prune lower branches early on to improve airflow, and space your plants far enough apart to avoid crowding. Always place your bags on well-draining ground like gravel or garden fabric — not concrete or bare dirt.

For added protection, spray Holi Moli Eliminator during veg and early flower to prevent pests, mildew, or mold from popping up after rare storms or temperature drops.

Grow Bag Sizes & Spacing:

• 5-gallon bags – 2.5–3 feet apart
• 10-gallon bags – 3.5–4 feet apart
• 15-gallon bags – 4.5–5 feet apart
• 20-gallon bags – 5–6 feet apart

How to Grow Blue Runtz Marijuana in Temperate Climates

This flavorful blueberry-forward hybrid strain can be grown successfully in temperate climates, but you’ll need to take a few extra precautions to keep it happy through cooler nights and fluctuating humidity.

Start by germinating seeds indoors and moving your plants outside only when nighttime temps consistently stay above 50°F. Choose a sunny, open location that gets at least 6–8 hours of direct sunlight and has good natural airflow.

Use fabric grow bags to promote healthy root development and strong drainage, and make sure they’re placed on well-draining ground like gravel or garden fabric — not on concrete or soggy soil. Add mulch around the base of each plant to regulate soil moisture and help insulate roots during cooler nights. Prune the lower branches early to boost airflow around the base and avoid trapping humidity.

To keep issues like mildew and bud rot at bay, water in the morning, give your plants enough space to breathe, and apply Holi Moli Eliminator during veg and flower for added protection.

Grow Bag Sizes & Spacing:

• 5-gallon bags – 2.5–3 feet apart
• 10-gallon bags – 3.5–4 feet apart
• 15-gallon bags – 4.5–5 feet apart
• 20-gallon bags – 5–6 feet apart

How to Grow Blue Runtz Indoors | Complete Guide

This flavor-rich indoor hybrid strain thrives in a stable, controlled environment. Keep your temps between 72–80°F during lights-on and around 65–70°F during lights-off. While Blue Runtz is pretty adaptable, wide temperature swings can stunt growth or affect bud quality, so consistency is key throughout the grow.

During veg, aim for 55%–65% relative humidity to encourage lush, healthy growth. Once you flip to flower, drop humidity gradually — 40%–50% in early bloom, and 35%–45% by late flower to prevent mold and preserve trichomes. A small dehumidifier is a solid investment, especially in flower-heavy rooms.

Use fabric pots for better drainage and root aeration. For best results, go with 5-gallon pots in small tents or SCROG setups, or 7-gallon pots if you’ve got the space and want more root development. If you really want to push yield (and have the space), 10-gallon pots are a great option. Space your plants about 2 to 2.5 feet apart to maintain airflow and allow light to reach lower bud sites.

This strain responds well to training, so if you’ve got experience — or you’re testing your skills — give LST, topping, or SCROG a shot. Blue Runtz tends to grow bushy, and training helps open up the canopy, improve airflow, and increase bud production across the plant.

Once you hit flower, this high-terpene candy strain gets loud. Install a carbon filter by week 3–4 to handle the aroma, especially in small grow rooms. Add a couple oscillating fans to keep air moving across the canopy and prevent hot spots or moisture buildup. Good airflow also helps strengthen branches and reduce the risk of powdery mildew.

Lighting absolutely matters. Better lights = bigger yields and better bud quality. Strong full-spectrum LEDs are ideal — most growers run 6500K for veg and switch to 3000K or 3500K for flower. But here at Holi Moli, we run 6500K from start to finish, and it consistently produces dense, sticky buds loaded with flavor and frost. If you want top-shelf results, don’t skimp on your light setup — this strain will reward the extra investment.

GET YOUR SEEDS TODAY!