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Best Diary

The contest runs from April to the end of September 2026.
 Diaries that have started between 1st of January 2026 and April 2026 are also able to submit and compete in this contest.
• This contest is open to residents of the European Union, United Kingdom, United States, Canada, and South Africa.[
• Use of ATAMI Bloombastic and one other ATAMI-product to your liking is required, more ATAMI-products are always better!
• Diaries must include at least 6 pictures, ideally one picture per month that show plant with ATAMI-product. More is always better.
• Uploading a complete diary with Bloombastic and one other ATAMI-product to your liking is required.
• Winners will be chosen based on which buds look best right before harvest.
• Rating ATAMI-products is appreciated but not required.
• ATAMI reserves the right to use these pictures and any other contest content for their online and offline communication.
• This contest is only open to growers that comply with their local laws.
• ATAMI reserve the right to exclude participants that do not act in accordance with their local laws.
• Winners will be contacted in Oktober 2026

ATAMI BLOOMBASTIC DIARY CONTEST 2026

Shipped by Sponsors
16 Diaries participating
5mo
42 comments

Upload your complete journey to thick, frosty, and sweet-tasting
flowers.
Use ATAMI’s flagship product Bloombastic in combination with another ATAMI-product
to your liking and show us what you can do with it. ATAMI’s Grow Experts will look at
your diaries & pictures and choose their favorites.
BLOOMBASTIC
The all-in-one Bloom Additive works as a stimulator, hardener, taste enhancer and as an
activator for various enzymatic processes. An International Award-winning high-quality
cocktail of various minerals and organic compounds. By means of an explosion of sugar
and flower production Bloombastic provides thick, dense, sweet-smelling flowers.
Here’s what the winners can look forward to:
1st place: € 1.000*
2nd place: € 900*
3rd place: € 800*
4th place: € 700*
5th place: € 600*
6th place: € 500*
7th place: € 400*
8th place: € 300*
9th place: € 200 *
10th place: € 100*
*Worth of ATAMI-products

Prizes


Diaries
1
Oreoz U.S.AOreoz U.S.A
UnitedStrainsGermany
UnitedStrainsGermany
Master
-
g/watt
2
Ice cream haze 25Ice cream haze 25
qoodwater
qoodwater
Apprentice
-
g/watt
3
Lemon Cherry Runtz 🍒 🍋 💥Lemon Cherry Runtz 🍒 🍋 💥
Hannoizboyz
Hannoizboyz
Master
-
g/watt
4
North Thunderfuck Auto RQSNorth Thunderfuck Auto RQS
PhinolaGreen
PhinolaGreen
GrandMaster
-
g/watt
5
Terpgasm No Orgasm just Mutation GASMTerpgasm No Orgasm just Mutation GASM
DutchFarmer
DutchFarmer
GrandMaster
-
g/watt
6
Grandpa Zombie 🧟‍♂️Grandpa Zombie 🧟‍♂️
DeepRootsGrowTrees
DeepRootsGrowTrees
Master
-
g/watt
7
Melon Maki Watermelon Gelato x BlueZushiMelon Maki Watermelon Gelato x BlueZushi
DutchFarmer
DutchFarmer
GrandMaster
-
g/watt
8
The sweet candy oneThe sweet candy one
Growtyp
Growtyp
Master
-
g/watt
9
Outdoor project balkony likeOutdoor project balkony like
PhinolaGreen
PhinolaGreen
GrandMaster
-
g/watt
10
Auto CreeperAuto Creeper
SkunkyDog420
SkunkyDog420
GrandMaster
-
g/watt
11
Mein erstes GrowdiaryMein erstes Growdiary
Pot_im_Pott
Pot_im_Pott
Apprentice
-
g/watt
12
Biscotti Auto ATAMI Bloombastic ContestBiscotti Auto ATAMI Bloombastic Contest
KurtHighgrade
KurtHighgrade
Master
-
g/watt
13
Jack Frost Widow Auto ATAMI ContestJack Frost Widow Auto ATAMI Contest
KurtHighgrade
KurtHighgrade
Master
-
g/watt
14
Purple Opium Auto x5Purple Opium Auto x5
smoking_hills9
smoking_hills9
GrandMaster
-
g/watt
15
Grow with Atami Indoor 3Grow with Atami Indoor 3
GrahamTheGrower
GrahamTheGrower
Newbie
-
g/watt
16
show bad + Atami cocoshow bad + Atami coco
cz_grower
cz_grower
Newbie
-
g/watt
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42 comments
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GrowDiaries
GrowDiaries Pinned by GrowDiaries25d ago
Quick update everyone 😊 The technical issues related to joining the competition should now be resolved. Eligible diaries should appear correctly again, and everyone who meets the requirements can now participate normally. We’d also like to clarify that this issue was entirely related to the GrowDiaries platform architecture and was not caused by ATAMI or the competition organizers in any way. Thanks a lot for your patience while this was being resolved. – GD Team 🌱
Jane420sa
Jane420sa commented15d ago
@GrowDiaries, it says I dont have any diaries to join with, but I created one, please advise
ATAMI
ATAMI
Official Brand Representative
commented1mo ago
Thank you all for your comments and for your interest in taking part. Firstly, we would like to clarify the participation requirements: to take part in the competition, you must use Bloombastic in your grow. We understand that some users were hoping for free samples, but in this case we are unable to provide them. Given the volume of potential participants, we cannot guarantee a fair or controlled distribution of samples. Furthermore, the cash prize offered in the competition already represents a considerable incentive to offset the investment in the product. As for the technical aspects being discussed, we would like to clarify a few points. Bloombastic is a highly concentrated flowering stimulator, designed to be used exclusively in combination with a base nutrient solution. It is not a complete fertiliser in its own right. Its formulation is optimised to enhance the flowering phase, particularly in terms of sugar production, density and the final quality of the harvest. Regarding its use alongside other products rich in phosphorus (P) and potassium (K), the general recommendation is to avoid over-fertilisation. This does not mean it cannot be combined, but rather that it should be done judiciously, adjusting the doses to maintain an appropriate nutritional balance. On the subject of PGRs (growth regulators), we want to be clear: Bloombastic does not contain synthetic PGRs. Its effect is based on a combination of minerals and biostimulants that act naturally on the plant’s metabolism. Finally, and very importantly, we are aware of the problems several of you are experiencing when trying to enter the competition. We sincerely regret this situation. After reviewing it, we can confirm that this is a technical issue with the Grow Diaries platform, and is not related to ATAMI or the competition organisers. We have already reported this issue to the relevant team so that it can be resolved as soon as possible. You can help us by contacting them as well, as some of you have already purchased the product. We appreciate your patience and your feedback, which helps us to improve and continue offering valuable experiences to the community!
ATLien415
ATLien415 commented17d ago
@ATAMI, So, just circling back on this. You should revise your marketing materials available from official sources online regarding the additive then, as stating it cannot be combined with other PK sources is not the same verbiage as 'generally advising against because of possible overfert'. I can dump urine on a plant and possibly over fert, that is a superfluous statement that is only nominally less ambiguous than 'words'. The word salad type marketing in general is an issue with cannabis. That is the exact reason why I pressed the verbiage! And on PGRs, I won't go further other than noting the addition of 'synthetic' in your response, which is simply good legal copy IMO. The PGR statement was meant more as education to fellow growers, mostly the types who dump kelp extracts over their plants daily then go on reddit to harp about PGRs bad lol. I actually have heard great things about Atami's line. Last question - do you still think that not offering product was the move here? You are talking, if 500 folks entered, less than 1 dollar per person for competition specific sample small ml bottles with cap and label, then product, production down time, and shipping. Seems like an easy 'include a shirt' and charge a fee for an entry pack to me. Anecdotal, but folks are usually going through a lot more effort these days to get their bottles in front of people. The math could have mathed, at least more so than current participation.
CRAIG971
CRAIG971 commented2mo ago
Donc il faut acheter le produit atami bloombastic pour participer au concours il n'est pas fourni par atami ? 20€/100ml C'est le prix pour participer à la compétition
GreenEldritchGardens
GreenEldritchGardens commented2mo ago
@ATLien415, that's up to @ATAMI to clarify to us then, I would also like to know their take. Personally, I'm adding it on low dosage to some of my grows then I can give more feedback. Also in this blog, they mention that it's not PGR and also that should not be added alone without "basis" nutrients: https://atami.com/blog/products/the-best-bloom-booster-trust-bloombastic-by-atami-what-it-is-and-how-to-use-it
ATLien415
ATLien415 commented2mo ago
@GreenEldritchGardens, Their own website advises against using it with any P or K input, aka basically anything other than the line it is meant to be in. The best interpretation of that seems to be it is more than an additive. Yeah, I'm sure micro-dosing it would be fine. Green Sensation is built that way, the way you're mentioning, to taper off your primaries as an additive. Not that I am repping either of them. Either way, the blog post looks to contradict their own dedicated product page and indicates that is fine usage. Explains why they needed a usage blog post to clarify in retrospect. Also have to assume PGRs without an ingredient list. They use all the same language. And you could say it is PGR free, from a legal marketing perspective, while also containing legally-defined PGRs, legally... That exact nuance is where the identification of the language I am talking about with their marketing. So, until they say, all their buzzword shenanigans implying phytos is actually just enzymes also in the bottle...you assume phytos because that is the name of the game. Great place for them to step in and provide details (and samples even) of their product
GreenEldritchGardens
GreenEldritchGardens commented2mo ago
@ATLien415, It could, I really do no know for sure as well. But I agree that some free samples would've been nicer. I've bought for 50 bucks on 2 of their products and cannot even enter the contest :/
Show More (11)
carlitospiratahaze
carlitospiratahaze commented2mo ago
Atualmente trabajo en cuatro cultivos y estoy añadiendo en dos de ellos bloombastic y nrg flavor pero no puedo añadir el contenido de los diarios a el concurso.
Hannoizboyz
Hannoizboyz commented2mo ago
@carlitospiratahaze, @carlitospiratahaze, I feel the same way, I can't add myself.
GreenEldritchGardens
GreenEldritchGardens commented2mo ago
Can't join as well. It says: "You don't have any Diaries to join with"
DutchFarmer
DutchFarmer commented2mo ago
@GreenEldritchGardens, same here 😫
DutchFarmer
DutchFarmer commented2mo ago
Cant join its got an error
BUZIMAN
BUZIMAN commented2mo ago
@DutchFarmer, idem growmie 🤷‍♂️
ATAMI
ATAMI
Official Brand Representative
commented1mo ago
We will let you know as soon as possible about any updates and will also post on social media once everything is sorted.
ATAMI
ATAMI
Official Brand Representative
commented25d ago
HI EVERYONE, IT LOOKS LIKE IT'S BEEN SORTED OUT NOW, ACCORDING TO GROW DIARIES. CAN YOU CONFIRM THAT YOU'RE ABLE TO JOIN?🙌
ATAMI
ATAMI
Official Brand Representative
commented1mo ago
Can you confirm that you can take part in the competition, growers? 🙌
Jane420sa
Jane420sa commented13d ago
@GrowDiaries, you must be at the harvest stage to be able to join. Will try in two months again then. Kinda weird because to me the journey is the exciting part to follow especially for fellow growmies.
GrahamTheGrower
GrahamTheGrower commented13d ago
@ATAMI, To enter, you must submit a completed grow (harvest is the last step) from your profile.
GrahamTheGrower
GrahamTheGrower commented13d ago
@GrowDiaries, To enter, you must submit a completed grow (harvest is the last step) from your profile.
Show More (2)
Natrona
Natrona commented1mo ago
@NiePoSionym420 @carlitospiratahaze et Al, when this happened to me on Eternity grow, you must put the fertilizers in at the beginning even if not using yet. This may resolve the problem.
BostonGirlGrows
BostonGirlGrows commented1mo ago
I have yet to begin feeding bloombastic- but in a few weeks- I’ll be joining.
Genta
Genta commented4d ago
That’s a huge commitment. I just got my seeds from tsp. So how can I join the contest?
Jane420sa
Jane420sa commented16d ago
I wanting to join with my Diary currently in week 3, struggling to add diary, will keep trying! Frosty’s Auto Freak Khalifa Genetics
ATAMI
ATAMI commented15d ago
@Jane420sa, Hi Jane, is it still not working for you?
Jane420sa
Jane420sa commented13d ago
@ATAMI, turns out you must be in the Harvest stage. I’m in veg atm. Just wanted you to follow my journey through the stages, but my growmie just added his completed diary successfully so it definitely works!
Jane420sa
Jane420sa commented13d ago
Hello Everyone! You can only add this contest on completion at Harvest, thanks to my growmie who tuned me this GrahamTheGrower ~ happy growing 💜🧡