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Home Growers Competition · 2026–27 season

Grow it. Win $5,000.

$20,000 in cash prizes.

$5,000, $3,000 and $2,000 for the three tallest plants, and the same again for People's Choice. Plant your Brothers Green Kompolti seeds, log your plant through summer, and pick the one you're going for.

Already entered? Open my grow

Six cash prizes Closes 31 March 2027 NZ residents, all ages

Tallest plant

The three tallest verified plants in the country.

  1. 1st$5,000
  2. 2nd$3,000
  3. 3rd$2,000

People's Choice

The three growers with the most public votes.

  1. 1st$5,000
  2. 2nd$3,000
  3. 3rd$2,000

$10,000 in each category. Choose one when you enter.

Live leaderboard

Who's growing tallest?

Get on the board
How it works

Four steps from seed to the prize.

Enter

Pick your category and enter in two minutes. You get a private link to your own grower page.

Plant and notify

Sow your Kompolti seeds. Before you plant, notify MPI and NZ Police. It's two short emails, and we've written them for you.

Use our ready-made emails

Official guidance: MPI and NZ Police.

Log your grow

Add a height and a photo whenever you like. Your plant climbs the board and your page tells its story.

Measure or share

Going for tallest? Send your final tape-measure photos before 31 March. Going for People's Choice? Share your page to collect votes.

Badges

Earn them as you grow.

Milestones your plant earns on the way up. Titles go to whoever is tallest right now. Tap any badge to see how to earn it.

Honours board

Hall of Growers

Every season's winners go up on the board and stay there forever. The first names are added in April 2027.

SeasonTallest plantPeople's Choice
2026–27Could be youCould be you
Tallest plant

How to measure.

Measure vertically from the soil surface where the stem emerges to the highest naturally growing tip of the plant. Don't include the pot, supports or stakes, and don't stretch the plant.

For your final measure, send us:

  • A full-length photo with the tape running from soil to tip, and you standing beside the plant.
  • A close-up of the tape at the tip, showing the number.
  • A close-up of the tape at soil level.
  • A handwritten card in shot with your name and the date.

The plant must be alive and still rooted. Leading entries are verified before prizes are paid, and we may ask for a continuous video or arrange an independent check.

Enter

Two minutes, and you're in.

Choose Tallest plant or People's Choice. You can enter now and plant later.

  • You live in New Zealand. Under 18? A parent or guardian enters for you.
  • You're growing Brothers Green Kompolti seeds this season.
  • You notify MPI and NZ Police before you plant.
  • One entry per person.

Need seeds? Get Kompolti growing seeds

Step 1 of 3

About you

Good to know

Questions and terms.

Who can enter?

Anyone who lives in New Zealand and is growing Brothers Green Kompolti seeds this season. If the grower is under 18, a parent or guardian enters for them and manages the entry. A child's surname, face or social account is never required. One entry per grower.

Can I enter both categories?

No. Each grower enters one: Tallest plant or People's Choice. Pick the one that suits you when you enter.

How does People's Choice voting work?

Every People's Choice grower gets a public page. Anyone can vote for one grower by entering their email. One vote per person across the whole competition.

An email used to vote is used to record that vote. It only joins our mailing list if you tick the newsletter box when you vote.

Do I have to post photos all season?

For Tallest plant, you only need the final measure photos. For People's Choice, posting updates through the season is how you build a page worth voting for.

What do I need to do before planting?

Notify MPI and NZ Police before you plant. It's two short emails, and we've written them for you. Winners will be asked to show they did this. Official guidance: MPI and NZ Police.

What are the key dates?

Entries are open now. Entries, final measures and voting all close at 11:59pm on 31 March 2027. Winners are announced in April 2027.

Competition terms
  1. The promoter is The Brothers Green.
  2. Entry is open to New Zealand residents. The entrant must be 18 or over. A parent or legal guardian may enter on behalf of a child under 18: the parent or guardian is the entrant, manages the entry, gives the permissions in these terms on the child's behalf, is responsible for notifying MPI and NZ Police, and receives any prize. Employees of the promoter and their immediate families are not eligible.
  3. The competition closes at 11:59pm NZDT on 31 March 2027. Entries, final measures and votes received after that time are not counted.
  4. To be eligible, your plant must be grown in New Zealand during the 2026–27 season from Brothers Green Kompolti seeds, and you must comply with all laws that apply to growing it, including notifying MPI and NZ Police before planting.
  5. One entry per person, in one category only: Tallest plant or People's Choice. For Tallest plant, one plant per entry.
  6. Tallest plant is measured vertically from the soil surface where the stem emerges to the highest naturally growing tip. Pots, supports and stakes are not included and the plant must not be stretched. The plant must be alive and rooted when measured.
  7. To be eligible for Tallest plant you must submit the final measure photos described on this page before the competition closes. The promoter may ask leading entrants for a continuous video, an independent check, proof of how they received their seeds, and proof that they notified MPI and NZ Police. An entrant who cannot provide these may be disqualified.
  8. People's Choice is decided by public vote on this website. Each person may cast one vote, using their own email address. A voter may add their name and a short message; these are shown on the grower's page, and the promoter may decline or remove any message. The promoter may void any vote or entry it reasonably believes is fraudulent, automated, duplicated, paid for, or cast with an address that does not belong to the voter, and may check votes before prizes are paid.
  9. In each category there are three prizes: NZ$5,000 for first, NZ$3,000 for second and NZ$2,000 for third. For Tallest plant these go to the three tallest verified plants. For People's Choice they go to the three eligible growers with the most valid votes. Prizes are paid by bank transfer to a New Zealand bank account in the winner's name and are not transferable.
  10. Winners are contacted by email and announced in April 2027. If a winner does not respond within 14 days, or is found to be ineligible, the prize goes to the next eligible entrant.
  11. By entering, you allow the promoter to publish the photos, heights and text you submit, with your display name and town, on its website, social media and marketing, without payment. For a child's entry only the child's first name is shown, and a child's face or surname is not required.
  12. Your details are used to run the competition and contact you about it. They are added to the promoter's mailing list only if you tick that box. An email used to vote is used to record and check that vote, and is added to the promoter's mailing list only if the voter ticks that box.
  13. The promoter's decision is final. The promoter may change or cancel the competition if it cannot run as planned for reasons outside its control.
  14. This competition is not sponsored, endorsed or run by Facebook or Instagram.