Atami Bloombastic 10L is a highly concentrated PK 14-15 all-in-one bloom and ripening additive developed to support dense flower development, increased sugar production, enhanced aroma and a strong finish during the final stages of flowering.
Bloombastic is Atami's award-winning all-in-one bloom additive, developed for the final 4-6 weeks of flowering and ripening. It combines the functions of a bloom stimulator, hardener, taste enhancer and activator of various enzymatic processes, providing concentrated support as flowering and fruiting crops move towards maturity.
With a powerful PK 14-15 W/W formulation, Bloombastic supplies high levels of phosphorus and potassium during the period when productive crops have significant demand for these important flowering nutrients. Atami states that Bloombastic contains more than 50% more bio-minerals in the form of phosphorus and potassium than other liquid flowering products.
No ballast substances such as sodium or chlorine are used. The concentrated formulation is designed to encourage sugar and flower production, supporting the development of thicker, denser and more aromatic flowers during the final stages of the crop cycle.
Applied at only 0.5-1ml/L, the professional 10L format can prepare approximately 10,000-20,000 litres of nutrient solution, making it particularly well suited to commercial horticulture, large irrigation systems and high-volume nutrient reservoirs.
Why choose Atami Bloombastic?
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All-in-one bloom additive – combines the functions of a bloom stimulator, hardener, taste enhancer and activator of enzymatic processes.
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PK 14-15 formulation – provides concentrated phosphorus and potassium during flowering and ripening.
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High bio-mineral content – Atami states that Bloombastic contains over 50% more phosphorus and potassium than other liquid flowering products.
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Supports sugar production – developed to increase the sugar content of the crop during productive flowering.
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Supports dense flower development – encourages thick, dense and aromatic flowers as the crop approaches maturity.
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Supports aroma & flavour – combines concentrated flowering nutrition with Atami's taste-enhancing bloom formulation.
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No unnecessary ballast substances – formulated without ballast substances such as sodium and chlorine.
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Highly concentrated – used at only 0.5-1ml per litre of water.
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Suitable for Hydro, Coco & Soil – compatible with a wide range of growing media and cultivation methods.
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Suitable for irrigation systems – can be incorporated into professionally managed irrigation and fertigation programmes.
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Works alongside base nutrients – designed to supplement the crop's basic nutrient programme during flowering and ripening.
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Professional 10L format – ideal for larger crop areas, commercial growing systems and high-volume nutrient preparation.
What is Atami Bloombastic suitable for?
Bloombastic can be used with a wide range of flowering and fruiting plants, including vegetables, fruits, herbs and ornamental flowering crops. Atami gives examples including chilli peppers, strawberries and blueberries, as well as flowering plants such as orchids and violets.
It is suitable for cultivation in Hydro, Coco and Soil and can be incorporated into different substrate and irrigation systems.
Bloombastic is specifically intended for established flowering crops approaching the later stages of flower and fruit development. It is not a vegetative growth additive or complete base fertiliser.
Crop development should determine application timing rather than relying entirely on fixed calendar weeks. Atami recommends Bloombastic for the final 4-6 weeks of flowering and ripening, so crops with different flowering durations will naturally begin the programme at different points.
How to use Atami Bloombastic
Apply Bloombastic during the final 4-6 weeks of flowering and ripening in combination with your basic nutrients. Use 0.5-1ml per litre of water or nutrient solution, adjusting the overall nutrient programme according to crop requirements.
At 0.5ml/L, use 5ml for 10L, 25ml for 50L, 50ml for 100L, 250ml for 500L and 500ml for a 1,000L nutrient reservoir.
At 1ml/L, use 10ml for 10L, 50ml for 50L, 100ml for 100L, 500ml for 500L and 1L for a 1,000L nutrient reservoir.
A 10L container therefore prepares approximately 20,000 litres of nutrient solution at 0.5ml/L or 10,000 litres at 1ml/L.
Bloombastic increases the EC value of the basic nutrient solution, so EC should be monitored during use. Take the strength of the base nutrient and other additives into account when preparing the final solution.
Bloombastic can be combined with a bloom stimulator such as B'cuzz Bloom Stimulator where additional flowering-phase stimulation is required.
Important: Do not combine Bloombastic with another PK nutrient. Atami advises that this is unnecessary and can increase the risk of overfertilisation.
Understanding Bloombastic PK 14-15
Bloombastic provides a concentrated but relatively balanced combination of phosphorus and potassium, with a PK analysis of 14-15 W/W.
Phosphorus is involved in essential plant processes including energy transfer and reproductive development. Potassium contributes to numerous physiological functions associated with water regulation, nutrient movement and productive crop development.
During flowering and ripening, demand for these elements becomes increasingly important as the plant directs resources towards developing flowers and fruits.
Bloombastic combines this concentrated PK nutrition with its wider bloom-stimulating formulation, which is why Atami positions the product as an all-in-one flowering additive rather than simply a conventional PK fertiliser.
Bloombastic as part of a flowering programme
Bloombastic is designed to supplement rather than replace the plant's basic nutrient programme. Continue using an appropriate base nutrient for the chosen growing medium while introducing Bloombastic during the recommended flowering and ripening stages.
A bloom stimulator can also be incorporated where appropriate because a stimulator performs a different role from concentrated PK nutrition.
However, Bloombastic already provides a substantial PK 14-15 concentration. Adding another dedicated PK booster on top of it can create excessive phosphorus and potassium levels, which is why Atami specifically advises against combining Bloombastic with another PK nutrient.
Monitoring EC and crop response allows growers to account for the contribution made by both the base nutrient and Bloombastic rather than treating additives independently.
Atami Bloombastic 10L product details
| Brand |
Atami |
| Product |
Bloombastic |
| Product type |
All-in-one bloom & ripening additive |
| Size |
10L |
| PK analysis |
PK 14-15 W/W |
| Application rate |
0.5-1ml/L |
| Application period |
Final 4-6 weeks of flowering & ripening |
| 10L nutrient solution |
5-10ml |
| 50L nutrient solution |
25-50ml |
| 100L nutrient solution |
50-100ml |
| 500L nutrient solution |
250-500ml |
| 1,000L nutrient solution |
500ml-1L |
| Approximate solution from 10L |
10,000L at 1ml/L or 20,000L at 0.5ml/L |
| Growing media |
Hydro, Coco & Soil |
| Irrigation |
Suitable for irrigation systems |
| Use with base nutrients |
Yes |
| Use with bloom stimulator |
Yes |
| Use with another PK nutrient |
No - Atami advises against combining Bloombastic with another PK nutrient |
Atami Bloombastic 10L FAQs
What does Atami Bloombastic do?
Bloombastic is an all-in-one bloom and ripening additive designed to support plants during the final stages of flowering. It combines bloom stimulation, concentrated PK nutrition, flower hardening, taste enhancement and activation of various enzymatic processes.
What is the PK ratio of Atami Bloombastic?
Bloombastic has a PK 14-15 W/W analysis, providing high concentrations of both phosphorus and potassium during flowering and ripening.
When should I use Atami Bloombastic?
Atami recommends using Bloombastic during the final 4-6 weeks of flowering and ripening. Follow the actual development of the crop when determining the appropriate starting point.
How much Atami Bloombastic should I use?
Use 0.5-1ml per litre of water or nutrient solution alongside the crop's basic nutrients.
Does Bloombastic increase EC?
Yes. Bloombastic increases the EC of the basic nutrient solution because it contains concentrated mineral nutrition. Monitor EC and account for the strength of the complete feeding programme.
Can I use Bloombastic with my base nutrients?
Yes. Bloombastic is intended to be used in combination with appropriate basic nutrients during flowering and ripening. It is not a complete base fertiliser on its own.
Can Bloombastic be used with Bloom Stimulator?
Yes. Atami states that Bloombastic can be combined with a bloom stimulator such as B'cuzz Bloom Stimulator because the products perform different roles within the flowering programme.
Can Bloombastic be used with another PK booster?
No. Atami advises against combining Bloombastic with another PK nutrient. Bloombastic already contains a concentrated PK 14-15 formulation, and additional PK supplementation can increase the risk of overfertilisation.
Can I use Bloombastic in coco?
Yes. Bloombastic is suitable for coco and coco-based growing systems when incorporated into an appropriate coco nutrient programme.
Can I use Bloombastic in hydroponics?
Yes. Bloombastic is suitable for hydroponic cultivation and can be added to the nutrient solution during the appropriate flowering and ripening stages.
Can I use Bloombastic in soil?
Yes. Bloombastic is suitable for soil-grown flowering and fruiting plants when used alongside an appropriate base nutrient programme.
What plants can Bloombastic be used on?
Bloombastic can be used with many flowering and fruiting crops. Atami gives examples including chilli peppers, strawberries and blueberries, along with flowering ornamental plants such as orchids and violets.
Does Bloombastic support sugar production?
Yes. Atami specifically positions Bloombastic to encourage sugar production during flowering, supporting crop weight, aroma and final flower or fruit development.
What is the difference between Bloombastic and Rokzbastic?
Bloombastic is an all-in-one PK 14-15 bloom additive with a relatively balanced phosphorus-to-potassium profile. Rokzbastic is a PK 10-20 late-flowering booster with twice as much potassium as phosphorus. They have different formulations and should not be stacked together as additional PK products.
Is the 10L Bloombastic suitable for commercial horticulture?
Yes. The 10L format is particularly well suited to professional growers, larger crop areas and high-volume irrigation systems where Bloombastic is used regularly during flowering and ripening.
How much nutrient solution will 10L of Bloombastic make?
A 10L container prepares approximately 10,000 litres at 1ml/L or 20,000 litres at 0.5ml/L.