r/SemiHydro↗
Semi-hydro
Semi-hydroponics, also known as passive hydroponics or passive subirrigation, is a method of growing plants using an inert medium, water, and liquid nutrients. A constant supply of water reaches the roots via capillary action.
39k subscribers131 posts / mo in Sep 2026108 authors / mosince 2017
r/SemiHydro has 39k members (+30% over the last 12 months). It gets about 131 posts a month from 108 people. Top topics: Monstera Propagation & Root Care, Root Rot Help and Alocasia Care.
When to post on r/SemiHydro
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How r/SemiHydro has grown
Subscriber growth
Subscribers over time
Monthly activity
Posts, comments and authors per month
Topics and brands on r/SemiHydro
Top topics
Share of the subreddit's posts
- Monstera Propagation & Root Care3.6%
- Root Rot Help1.8%
- Alocasia Care1.5%
- Roots Growth & Care1.3%
- Moss Pole Care & DIY0.8%
Brands people mention
Most-mentioned brands and sites, last 12 months
- MakerWorld
- etsy
- Amazon
- First Rays LLC
Everything else about r/SemiHydro
Posting rules and account requirements, how often posts get removed, who writes here (age, gender, countries), what people ask for, how they talk, and related subreddits — all in the full report.
Posts and activity for Sep 2026. Members from Reddit's subscriber counts. Read from the same data the app runs on. Our research