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Best Diary

• 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
48 Diaries participating
2mo
46 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

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.

Prizes


Diaries
2
The sweet candy oneThe sweet candy one
Growtyp
Growtyp
Master
-
g/watt
3
Melonade RuntzMelonade Runtz
qoodwater
qoodwater
Apprentice
-
g/watt
4
TRIPLE G AUTOTRIPLE G AUTO
DeepRootsGrowTrees
DeepRootsGrowTrees
Master
-
g/watt
5
BLUE CHEESE 🧀 AUTOBLUE CHEESE 🧀 AUTO
DeepRootsGrowTrees
DeepRootsGrowTrees
Master
-
g/watt
6
MIMOSA  AUTOMIMOSA AUTO
DeepRootsGrowTrees
DeepRootsGrowTrees
Master
-
g/watt
7
Auto CreeperAuto Creeper
SkunkyDog420
SkunkyDog420
GrandMaster
-
g/watt
8
Papayton phenohuntPapayton phenohunt
ThatsmyGrow
ThatsmyGrow
Master
-
g/watt
9
Mein erstes GrowdiaryMein erstes Growdiary
Pot_im_Pott
Pot_im_Pott
Apprentice
-
g/watt
10
DOSIDOS AUTODOSIDOS AUTO
DeepRootsGrowTrees
DeepRootsGrowTrees
Master
-
g/watt
11
MOON ROCK  AUTOMOON ROCK AUTO
DeepRootsGrowTrees
DeepRootsGrowTrees
Master
-
g/watt
12
Biscotti Auto   Monkey Genetics🐒Biscotti Auto Monkey Genetics🐒
KurtHighgrade
KurtHighgrade
Master
-
g/watt
13
Outdoor project balkony likeOutdoor project balkony like
PhinolaGreen
PhinolaGreen
GrandMaster
-
g/watt
14
Blackberry Gas Auto Monkey Genetics🙊Blackberry Gas Auto Monkey Genetics🙊
KurtHighgrade
KurtHighgrade
Master
-
g/watt
15
Guava Sunday Auto - Bloombastic contestGuava Sunday Auto - Bloombastic contest
GreenEldritchGardens
GreenEldritchGardens
Apprentice
-
g/watt
16
Sour Jealousy AutoSour Jealousy Auto
GreenEldritchGardens
GreenEldritchGardens
Apprentice
-
g/watt
17
Runtz & Roses // Pickled Lemon F1Runtz & Roses // Pickled Lemon F1
BUZIMAN
BUZIMAN
Master
-
g/watt
18
SUPER MONSTERSUPER MONSTER
MARCTAKAHASHI
MARCTAKAHASHI
Apprentice
-
g/watt
19
Super BoofSuper Boof
MARCTAKAHASHI
MARCTAKAHASHI
Apprentice
-
g/watt
20
Mendo Frost ❄️ Auto x AtamiMendo Frost ❄️ Auto x Atami
NiePoSionym420
NiePoSionym420
Apprentice
-
g/watt
21
Green Crack Auto FastBudsGreen Crack Auto FastBuds
Dolle420
Dolle420
Apprentice
-
g/watt
22
CRITICAL CHEESE 🧀CRITICAL CHEESE 🧀
BUZIMAN
BUZIMAN
Master
-
g/watt
23
Mix papayaMix papaya
Piratebay
Piratebay
Apprentice
-
g/watt
24
Fishy ZoapFishy Zoap
CorinnaFarm
CorinnaFarm
Guru
-
g/watt
25
GELONADE & MILKYWAYGELONADE & MILKYWAY
BUZIMAN
BUZIMAN
Master
-
g/watt
26
Kings JuiceKings Juice
psychedelic_unicorn
psychedelic_unicorn
GrandMaster
-
g/watt
27
Ice cream haze 25Ice cream haze 25
qoodwater
qoodwater
Apprentice
-
g/watt
29
Grand mommy👵😈 purpleGrand mommy👵😈 purple
smoker420
smoker420
Master
-
g/watt
30
Ddos#33🇺🇸🔥👌Ddos#33🇺🇸🔥👌
smoker420
smoker420
Master
-
g/watt
31
Lemon Cherry Runtz 🍒 🍋 💥Lemon Cherry Runtz 🍒 🍋 💥
Hannoizboyz
Hannoizboyz
Master
-
g/watt
32
North Thunderfuck Auto RQSNorth Thunderfuck Auto RQS
PhinolaGreen
PhinolaGreen
GrandMaster
-
g/watt
33
Cali CrasherCali Crasher
CorinnaFarm
CorinnaFarm
Guru
-
g/watt
34
Fruit CakeFruit Cake
CorinnaFarm
CorinnaFarm
Guru
-
g/watt
35
Melon Maki Watermelon Gelato x BlueZushiMelon Maki Watermelon Gelato x BlueZushi
DutchFarmer
DutchFarmer
GrandMaster
-
g/watt
36
Mimosa Cherry KushMimosa Cherry Kush
CorinnaFarm
CorinnaFarm
Guru
-
g/watt
37
BLUE ZUSHI 🔵🍣BLUE ZUSHI 🔵🍣
BUZIMAN
BUZIMAN
Master
-
g/watt
38
Terpgasm No Orgasm just Mutation GASMTerpgasm No Orgasm just Mutation GASM
DutchFarmer
DutchFarmer
GrandMaster
-
g/watt
39
Square One Genetics – ChemfernoSquare One Genetics – Chemferno
DutchFarmer
DutchFarmer
GrandMaster
-
g/watt
40
Grandpa Zombie 🧟‍♂️Grandpa Zombie 🧟‍♂️
DeepRootsGrowTrees
DeepRootsGrowTrees
Master
-
g/watt
41
Mimosa Sunrise 🍊XXLMimosa Sunrise 🍊XXL
BUZIMAN
BUZIMAN
Master
-
g/watt
42
MANGO KUSHMANGO KUSH
BUZIMAN
BUZIMAN
Master
-
g/watt
43
Blue ZushiBlue Zushi
BostonGirlGrows
BostonGirlGrows
GrandMaster
-
g/watt
44
Grandmommy PurpleGrandmommy Purple
BostonGirlGrows
BostonGirlGrows
GrandMaster
-
g/watt
45
show bad + Atami cocoshow bad + Atami coco
cz_grower
cz_grower
Newbie
-
g/watt
46
Peanut Butter Jelly CakePeanut Butter Jelly Cake
GrahamTheGrower
GrahamTheGrower
Newbie
-
g/watt
47
Purple Opium Auto x5Purple Opium Auto x5
smoking_hills9
smoking_hills9
GrandMaster
-
g/watt
48
Pineapple Glue 🍍[OUTDOOR]Pineapple Glue 🍍[OUTDOOR]
BUZIMAN
BUZIMAN
Master
-
g/watt
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46 comments
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GrowDiaries
GrowDiaries Pinned by GrowDiaries4mo 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 🌱
ATAMI
ATAMI
Official Brand Representative
commented4mo 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 commented4mo 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 commented5mo ago
So you have to buy the Atami Bloombastic product to participate in the contest, it's not provided by Atami?
Green_Claws
Green_Claws commented5mo ago
@CRAIG971, haha it's a no from me...
CRAIG971
CRAIG971 commented5mo ago
@Green_Claws, for me too it will be no.
GrowerBaal
GrowerBaal commented5mo ago
@CRAIG971, I totally agree. The competition is only interesting for growers who are already using Atami. I'm not going to start a new nutrient schedule just for this.
CRAIG971
CRAIG971 commented5mo ago
@GrowerBaal, same here👍
GreenEldritchGardens
GreenEldritchGardens commented5mo ago
@GrowerBaal, I think u don't need to change your schema since this Bloombastic is just an addictive. Since I don't use any adds at the end of my flowering maybe I'll try it out
GrowerBaal
GrowerBaal commented5mo ago
@GreenEldritchGardens, Ok. But i got enough stuff from Plagron and also some stuff from other brands, i will not purchase a new brand to try out. I wish you good luck.🙏💪
TruTraTri
TruTraTri commented5mo ago
@GreenEldritchGardens, regarding their own scheme, you'd be missing 9 (!!!) other bottles for hydro and 8 (!!!) for Coco.. just for the normal setup. Think these are numbers you have to respect, a lot of work to isolate and purify single nutrients and dillute them accurate in so many different bottles. Really impresive... just naturally innovative 😜. Personally, I am just waiting for CalMag separated in Cal and Mag, it's just too unspecific in one bottle.
GreenEldritchGardens
GreenEldritchGardens commented5mo ago
@TruTraTri, I see what you mean, my ideia would be to just add Bloombastic + 1 addictive from their additional nutrients to my schene. Hope it works :)
ATLien415
ATLien415 commented5mo ago
@TruTraTri, 💀💀💀😂😂😂
CRAIG971
CRAIG971 commented5mo ago
@GrowerBaal, same here, I already have plenty of products, I'm not going to spend money to buy another product just for a contest. If the product is offered, no problem, we're at a giant lab.
ATLien415
ATLien415 commented5mo ago
@GreenEldritchGardens, per Atami's marketing materials you wouldnt treat it like an 'on the top' additive like that, but i dont see any reason not to other than the PGRs in the bottle. just assuming it is a same ratio kelp concentrate, but ya never know when they dance with buzzwords around phytohormones
GreenEldritchGardens
GreenEldritchGardens commented5mo 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 commented5mo 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 commented5mo 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 :/
Piratebay
Piratebay commented5mo ago
I'm currently working on four grows and I'm adding bloombastic and nrg flavor to two of them, but I can't add the diary content to the contest.
Hannoizboyz
Hannoizboyz commented5mo ago
@Piratebay, @Piratebay, I feel the same way, I can't add myself.
GreenEldritchGardens
GreenEldritchGardens commented5mo ago
Can't join as well. It says: "You don't have any Diaries to join with"
DutchFarmer
DutchFarmer commented5mo ago
@GreenEldritchGardens, same here 😫
DutchFarmer
DutchFarmer commented5mo ago
Cant join its got an error
BUZIMAN
BUZIMAN commented5mo ago
@DutchFarmer, idem growmie 🤷‍♂️
ATAMI
ATAMI
Official Brand Representative
commented4mo 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
commented4mo 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
commented4mo ago
Can you confirm that you can take part in the competition, growers? 🙌
GrahamTheGrower
GrahamTheGrower commented3mo ago
@ATAMI, To enter, you must submit a completed grow (harvest is the last step) from your profile.
GrahamTheGrower
GrahamTheGrower commented3mo ago
@GrowDiaries, To enter, you must submit a completed grow (harvest is the last step) from your profile.
GrowDiaries
GrowDiaries commented2mo ago
@GrahamTheGrower, Dear growers, Please note the main requirements for joining the ATAMI Bloombastic Diary Contest 2026: Your diary must be available via direct link, created no earlier than January 1, 2025, and include ATAMI nutrients in the nutrients section. If your diary fully matches these requirements but you still can’t add it to the contest, please send us a private message with the direct link to the specific diary. We’ll check it manually and help you figure it out. – GD Team 🌱
Show More (3)
BostonGirlGrows
BostonGirlGrows commented23d ago
Let’s go! 🌱 just harvest all 4 plants! Can’t wait to test out the final results!
Natrona
Natrona commented4mo ago
@NiePoSionym420 @Piratebay 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 commented4mo ago
I have yet to begin feeding bloombastic- but in a few weeks- I’ll be joining.
UDUDUDUDU
UDUDUDUDU commented23d ago
one more month and we lock da leader boards - sayz captain obvious
Jane420sa
Jane420sa commented3mo 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 commented3mo ago
@Jane420sa, Hi Jane, is it still not working for you?
Jane420sa
Jane420sa commented3mo 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!
Genta
Genta commented3mo ago
That’s a huge commitment. I just got my seeds from tsp. So how can I join the contest?
UDUDUDUDU
UDUDUDUDU commented23d ago
@Genta, Something about a complete diary with bloombastic flower additiv and another atami product
Jane420sa
Jane420sa commented3mo ago
Hello Everyone! You can only add this contest on completion at Harvest, thanks to my growmie who tuned me this GrahamTheGrower ~ happy growing 💜🧡
GrowDiaries
GrowDiaries commented2mo ago
@Jane420sa, Dear growers, Please note the main requirements for joining the ATAMI Bloombastic Diary Contest 2026: Your diary must be available via direct link, created no earlier than January 1, 2025, and include ATAMI nutrients in the nutrients section. If your diary fully matches these requirements but you still can’t add it to the contest, please send us a private message with the direct link to the specific diary. We’ll check it manually and help you figure it out. – GD Team 🌱