Potterfests

Fest Name: HP Flowers Spring Round 2024
Links: Tumblr | AO3 | Guidelines | FAQ | Prompts
Type of Challenge: Prompt challenge
Description: A HP prompt challenge focusing on the language of flowers. The challenge will run from May 1 to May 31. AI-generated works will not be accepted.
Ratings Restrictions: All ratings allowed
Length Restrictions:
Fic & poetry: Minimum 50 words; no maximum
Art: None; any medium is welcome
Podfic: With original author's permission
Timeline:
Prompt cards are revealed: April 9
Challenge runs from: May 1 - May 31
Masterlist posted: June 7

hp-flowers on Tumblr is running an interest check survey for the 2024 spring round.

HP Flowers is a twice-a-year HP prompt challenge focusing on the language of flowers and plants. The challenge takes place in May and in October. It's open to all HP characters and pairings.

If you would like to fill out the survey, you can find the survey HERE.

Fest Name: HP Flowers Spring Round 2023
Links: Tumblr | AO3 | Guidelines | FAQ | Prompt Cards
Type of Challenge: Prompt challenge
Description: A HP prompt challenge inspired by the language of flowers. Open to all HP characters and pairings.
Ratings Restrictions: All ratings allowed
Length Restrictions:
Fic: Minimum 50 words. No maximum.
Art: Can be any medium
Timeline:
Prompt cards are revealed: April 9
Challenge starts: May 1
Challenge ends: May 31
Masterlist is posted: May 7

Updated on October 4: These are some of the HP prompt challenges (and one multi-fandom challenge) that are taking place throughout October.

hp-flowers has also posted a great list of prompt challenges that are currently happening on Tumblr. That list includes both HP fandom and multi-fandom challenges.

Rarepair Shorts: Halloween Monster Mash
Links: Dreamwidth | Livejournal | AO3 | Guidelines
Description: A prompt challenge for HP rare pairings not on the excluded ship list.
Length restriction: Between 200 - 2500 words. Art is also welcome.
Sign-ups: October 1 - October 30 at 11:59 GMT
Posting: October 1 - October 31

Harry/Draco Fluffy Halloween Fest 2022
Links: Livejournal | Rules & Prompting
Description: A Harry/Draco prompt challenge featuring Halloween and fluff. Any medium is welcome.
Prompting begins: October 3
Posting: October 3 - October 31

HP Fear Fest 2022
Links: Tumblr | Guidelines | Prompts
Description: A HP horror prompt challenge. Any medium of any length is welcome.
Post your works: October 1 - October 31
Round-ups and highlights: November 1 - November 30

HP Flowers Autumn Round
Links: Tumblr | AO3 | Guidelines | FAQ | Prompt Cards
Description: A HP flower language prompt challenge. Minimum word count is 100. No maximum. Also welcomes art and podfic.
Dates: October 1 - October 31
Masterlist Posted: November 7

Jilytober Fest 2022 (James/Lily)
Links: Tumblr | List of Events | Prompts
Description: A James/Lily prompt challenge. The fest also has several special events; some of them require registrations.
Last day to sign up for special events: September 29
Runs from: October 1 - October 31

Liquid Luck Roll the Dice Challenge Winter Edition
Links: Dreamwidth | Tumblr | AO3 | Rules
Description: A HP prompt challenge where you request for a personalised set of prompts. Fic and any kind of art are welcome. No word count limit.
Request a prompt: October 1 - December 20
Self-post to AO3: October 14 - December 24

Pod_O_Ween 2022 (Multi-fandom)
Links: Dreamwidth | Twitter | AO3 | Rules | Prompts | Treat Challenge
Description: A multi-fandom Halloween podfic event. Tricks consist of nine prompts you can use for inspiration. Treats allow you to request for a specific fic, trope, fandom etc. to be included in the Pod_O_Ween collection.
Pod_O_Ween goes live early: September 21
Final Date for Treat Requests: October 26
Final Date for posting to AO3 Collection: October 30
Podfic Reveal at Midnight: October 31

If you are looking for prompt challenge communities, check out our List of Prompt Challenge Communities. The list includes both HP communities and multi-fandom communities.