What are the best flowering stimulators for marijuana?

One of the most frequently asked questions by growers is what are the best flowering stimulators for marijuana. The use of this type of products can

offer a wide range of advantages, being able to obtain the desired harvests, both in production and in aroma or organoleptic properties.

Importance of pre-flowering

The products presented in this article are designed to be applied before or during the pre-flowering stage, in which the plant prepares itself to be able to successfully face flowering. For this reason, it is very important to provide specific stimulators at this stage, because thanks to them the plant:

• Accelerates to a certain extent the beginning of flower formation.
• Improves the formation of shorter internodes.
• It gets enough energy to be able to bloom exuberantly.
• The production of essential oils is more intense and earlier.

For all these reasons, below are the best flowering stimulators for cannabis seeds and how they should be applied to obtain the best results.

The best flowering stimulators for marijuana

As a general rule, less experienced growers tend to work with basic fertilizers for the growth and flowering stage, without adding any other type of product for pre-flowering, or at most, adding some type of fattening product rich in phosphorus and potassium. Thus, they leave stimulators aside simply out of ignorance, because of bad advice or because they understand that they are unnecessary products to obtain quality marijuana, as the effects they produce are not as spectacular as the application of a fattening agent. Some of the best flowering stimulators for marijuana that can be applied include:

Delta 9 Cannabiogen

Delta 9 of Cannabiogen, is the flowering stimulator par excellence for several reasons:

• The great complexity of its formulation
• The results it offers.
• It is one of the reference products in cannabis cultivation, due to the results it offers.

With the correct use of Delta 9, the benefits that can be obtained are the following, increases of up to 20% in the formation of resin and in the final production. In addition, it brings forward the beginning of flower formation much faster, enough energy for the plants to face flowering in perfect conditions and the formation of shorter internodes.

Instructions for use of Delta 9 by Cannabiogen

Before applying it, it is very important to know that you should always use non-calcareous water, distilled water or osmosis filtered water. Otherwise, over-fertilization or inadequate reactions by Delta 9 may occur. The steps to follow are:

• Apply 10 days before the cultivated plants start the pre-flowering phase, in amounts of 4/6 ml per liter of water.
• In addition, 10 days after the first spraying, it should be applied in irrigation with the same recommended dosage.
• The last application is made 10 days after this one, at the same dose.
• With only these 3 applications it is more than enough to achieve the best results that Delta 9 can offer.

Applying this product in doses higher than recommended or more times than recommended can be counterproductive. Consequently, it is advisable to control the applications made.

Bud Ignitor by Advanced Nutrients

Bud Ignitor is a bloom stimulator by Advanced Nutrients highly valued by professional marijuana growers, as it provides very interesting benefits to the crops. It is a product that should be applied just before the beginning of pre-flowering to produce the best possible results and depending on the variety grown, it should be extended for several weeks.

How to use Bud Ignitor by Advanced Nutrients?

It can be applied once or twice a week depending on the intensity of the crop, in doses of 2 ml/L. However, to obtain the best results it is necessary to apply it twice a week, together with the rest of the fertilizers or separately.

On the other hand, it is very important to know the varieties grown and to keep control over their flowering time, since if it is applied out of date, the results obtained will not be the best. Therefore, the best date to apply this fantastic accelerator is as soon as the photoperiod is changed from 18/6 to 12/12 and pre-flowering begins.

The result that will be obtained allows to accelerate a little the beginning of the production of flowers in the treated plants and a considerable increase in the formation of short internodes. Therefore, the productive capacity of the plants is drastically increased.

Blossom Blaster by Grotek

Blossom Blaster is a highly concentrated stimulator, composed of high quality minerals, which can be found in liquid and powder form. With it, the natural processes of the treated plants are accelerated to start the formation of flowers. It also provides them with extra energy. If you want to complement this product, you will have to use Monster Bloom.

Although to complement this product, you will have to use Monster Bloom, otherwise the formed flowers will not be as compact:

• A faster and more optimal start to flower formation.
• The ability to form large flowers.
• Formation of shorter internodes.
• A supply of the necessary energy to avoid deficits when producing new buds.

How to use Grotek Blossom Blaster

The doses recommended in Grotek’s feeding chart are designed to be applied only once a week, in doses of 0.1 g / L, in the first and third week of flowering. 

In the case of wanting to fertilize more times during the week, it is necessary to divide the recommended dose by two. If this division is not made, in only 2-3 weeks we can see how the first symptoms of over-fertilization or nutrient blockage appear.

Big One by Top Crop

Big One by Top Crop is an ideal stimulator for organic marijuana growers, as it is composed of 23% algae of the genus Ascophyllun nodosum. In addition, to guarantee that it is a product suitable for organic farming, it comes with the SHC seal. This stimulator stands out as one of the most economical on the market and offers the best results, since the benefits offered by algae are multiple.

How to use Big One by Top Crop

Since it is a very concentrated product, it is advisable not to exceed the dosage indicated by the manufacturer. If it is used in combination with the rest of the Top Crop range, it will be necessary to lower the dosage by half, in order to avoid over-fertilization. In addition, it can be applied by irrigation and spraying, following the recommendations below:

• Apply in quantity of 2 ml/L in irrigation or spraying 10 days before the beginning of pre-flowering.
• Repeat the same application two more times every 10 days.

The use of Big One helps increase flower volume by up to 40% at best and increases resin production by up to 30%.  Other benefits are:

• Provides energy for flowering.
• Increases the vigor and overall appearance of the plant.
• The resulting final product contains much higher quality than if it had not been applied.
• The most outstanding effect of its application are the aromas and flavors that are achieved thanks to it and the power of algae.

Bloom GB Nutrients

Bloom by GB Nutrients is a bio-mineral fertilizer specially formulated for the flowering stage, guaranteeing high quality harvests thanks to its balance of nutrients and NPK. Its advanced formula, enriched with biomolecules such as Fucoidan and Alginate, favors an exuberant development of buds, improves the resistance of the plants and enhances the flavor and aroma of the flowers. It is applied twice a week during flowering, promising compact and resinous flowers with optimal nutrition.

How to use Bloom by GB Nutrients

Bloom by GB Nutrients should be applied twice a week from the beginning of the flowering phase until root flushing, following these instructions:

• Use in alternate irrigations: one with water only and one with Bloom.
• Use in doses of 2-3 ml/L.
• Shake well before use.

Although you can find an infinite number of brands producing stimulators, with the capacity to offer incredible results at different levels, here is a small selection of some of the best flowering stimulators for marijuana.

CannaBoost Accelerator

CannaBoost Accelerator is one of the most complete and effective bloom stimulators on the market, capable of boosting floral development from the very beginning and significantly improving the final quality of the harvest. Its advanced formula activates plant metabolism, accelerates photosynthesis, and enhances the production of larger, denser, and more resinous buds.

Thanks to its fully soluble composition, it can be applied in any growing system — soil, coco, or hydroponics — and easily combined with other fertilizers from the Canna range, especially PK 13/14, to maximize flower swelling and weight.

In addition to increasing overall yield, Canna Boost improves the taste and aroma of flowers by stimulating the natural production of sugars and essential oils, resulting in a more intense and aromatic final product. Its versatility allows use both through irrigation and foliar application, providing visible results within a few weeks.

How to use Canna Boost Accelerator

For irrigation, apply 2–4 ml per liter of water from the second-to-last week of growth until two weeks before harvest, alternating one watering with plain water and the next with the stimulator. For foliar application, dilute 1–2 ml/L and spray preferably on the underside of the leaves. For maximum results, combine with PK 13/14 by Canna and follow the brand’s official feeding schedule.