Runtz XL Auto

Genetics of Runtz XL Auto Variety

Sweet Seeds breeders never stop, and this new variety is a clear example of that. Runtz XL Auto is the 6th generation autoflowering version of Runtz, a genetic strain that has made a significant impact on the American market.

Runtz is a Zkittlez x Gelato cross known for its sweet and fruity flavor and aroma, with large, dense flowers loaded with resin. The Sweet Seeds team took a selected clone of Runtz and crossed it with a strain of Sweet Gelato Auto to create an XL autoflowering variety with all the flavor, aroma, and effects of photoperiod genetics.

Runtz XL Auto Autoflowering Seeds

Runtz XL Auto produces female autoflowering plants, an indica-sativa hybrid with a Christmas tree-shaped structure featuring a large central bud and good lateral branching.

Runtz XL Auto plants develop rapidly, growing for 3-4 weeks before entering the flowering stage. This results in plants ready to harvest in 8-9 weeks from germination, with a very high yield of high-quality flowers indoors and outdoors.

Growth of Runtz XL Autofem

As mentioned earlier, Runtz XL Auto has a 3-4 week growth period from germination before entering the flowering stage. In this case, as with most autoflowering strains, it is advisable not to transplant and always use a new and fluffy substrate that allows rapid root development.

Autoflowering plants have a limited growth period, so anything that can accelerate growth will positively impact the final yield. We recommend using root stimulators and growth enhancers with each watering from germination until the appearance of the first pistils that signal the start of flowering (as important, if not more so, than the use of flowering stimulators).

Flowering of Sweet Seeds' Runtz XL

The flowering period of an automatic variety begins when the plant stops growing and forms its first pistils. From that moment on, the plant will dedicate all its effort and energy to flower development. In the case of Runtz XL Auto, it takes about 4-6 weeks from the start of flowering until it is ready for harvest (some phenotypes will be ready sooner than others, with longer-flowering ones yielding higher production).

Runtz XL Auto does not require extensive attention or knowledge, but it is advisable to take certain precautions for optimal performance. Avoid overwatering, especially when the plants are smaller, and do not over-fertilize the plants with an excess of nutrients (especially during flowering).

Runtz XL Auto Marijuana Production

Runtz XL Auto is an autoflowering strain with very high production and minimal care required by the grower. This makes it suitable for both experienced and novice cultivators. It is a great option for first-time growers who want to achieve their first harvest without sacrificing the final quality of the flowers.

This genetic strain has the capacity to produce up to 175 g/plant outdoors and up to 550 g/m2 indoors.

To achieve the best production, it is important to respect certain factors that can contribute to it. As mentioned, autoflowering varieties require special care for their proper development. We strongly advise against transplanting and recommend using 15-20 liter pots and a good, fluffy substrate that facilitates root expansion. A robust root system will contribute to a higher final production. It is essential to understand that the more roots a plant has, the easier it will be for the plant to assimilate the nutrients provided.

Structurally, Runtz XL Auto is a plant with a large main bud and good secondary ones. It does not respond well to pruning, so it is best to let it grow in its natural form.

Taste and Aroma of Runtz XL Automatic

The Zkittlez x Gelato cross leaves no doubt about what to expect here. Cultivating it does not disappoint.

In the garden, the sweet and fruity aroma is intense and penetrating, making it advisable to use a good carbon filter system to completely eliminate the plant's odor and avoid problems with neighbors.

Outdoors, the fragrance emitted by the flowering plants will make you feel proud of your harvest even days before harvesting.

Effect of Runtz XL Auto Cannabis

The effect of Runtz XL Auto flowers is potent and relaxing. It delivers a balanced and tranquil high that stimulates creativity and imagination while providing relaxation after tough days of work and stress.

Tips for Growing Autoflowering Runtz XL

For this Runtz XL Autofem, we have 3 basic tips:

Firstly, use a new, fluffy substrate containing ample nutrients. Our favorite is Canna Terra Professional Plus, but we have also achieved good results with Plagron Batmix (which contains a bit of guano). In general, either of these substrates is optimal for rapid root development, promoting larger plants ready for a higher yield.

Secondly, we recommend adding a good root stimulator to each watering (throughout the vegetative phase). This also helps in achieving larger plants and, consequently, a higher yield.

Thirdly, use pots between 15 and 20 liters in size. Smaller pot sizes will limit plant development, while larger sizes are entirely unnecessary as the plant will not utilize it. This also rules out planting directly in the ground, where plants would be smaller and produce fewer flowers.

Having detailed these basic tips, we want to emphasize that autoflowering plants are very susceptible to stress. Therefore, anything that can cause stress in the plant should be avoided. In this regard, we recommend that you do not prune your plants or transplant them, as both actions would stress the plants and limit their results.

As you approach the end of the cultivation process, just before harvesting, another important piece of advice is not to rush the harvest. If you have been patient for 2 and a half months, waiting an extra week or 10 days won't make a significant difference. Cutting too early is just as bad as harvesting too late.

Characteristics of Sweet Seeds' Runtz XL Auto

• Sex: Feminized.
• Genotype: Autoflowering.
• Genetics: Runtz (Zkittlez x Gelato) x Sweet Gelato Auto.
• Harvest: 8-9 weeks from germination.
• Production: 550 g/m2 - 175 g/plant.
• Flavor: Sweet.
• Aroma: Fruity.
• Effect: Potent and relaxing.
• Height: 60-120 cm.

Final Thoughts on Runtz XL Auto and Its Price

It's been a while since an autoflowering strain has surprised us as much as Runtx XL Auto has. Finding an XL autoflowering strain with the taste and smell of its photoperiod sister is challenging, but if the production is good, and the time to harvest is short, we are dealing with genetics that can bring a lot of joy.

If you have tried Zkittlez and Gelato, and you enjoy their flavor, you can be sure that you will like this Runtz XL Auto. The cross with Gelato not only contributes flavor and aroma to the strain but also improves the structure of Zkittlez's flowers (the only drawback of that strain).

In terms of cultivation, we find it to be an easy-to-grow genetic strain, very discreet due to its height, and it easily achieves a bountiful harvest. In our opinion, it is perfect for sunny balconies and terraces where it will bring out its best.

Speaking of price, considering Sweet Seeds' limited 3+1 and 5+2 offers, the price per seed falls within a medium range, which we find neither cheap nor expensive. Perhaps it is a bit above the average for this seed bank, but it is also true that when you get a good harvest, of the quality that this Runtz XL Auto can deliver, the cost of the seed is somewhat negligible compared to what you have gained from it.