r/SemiHydro is a subreddit with 39k members. The community frequently discusses leca, pon, semi hydro, plant, and semi hydro, and they frequently recommend/review fertilizer, and the most common flair used is discussion, leca, pon, and moss.
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.
Popular Topics in r/SemiHydro
#1
Leca
66 posts
#2
Pon
63 posts
#3
Semi Hydro
46 posts
#4
Plant
39 posts
#5
Semi Hydro
38 posts
#6
Alocasia
30 posts
#7
Hydro
20 posts
#8
Roots
18 posts
#9
Fertilizer
18 posts
#10
Transfer
16 posts
Products Discussed in r/SemiHydro
Fertilizer
9 reviews
#1
Compo
4.0★ from 1 review
#2
Mairol Hydroponics
4.0★ from 1 review
#3
Luwasa Slow Release Fertilizer
4.0★ from 1 review
Flair Used in r/SemiHydro
#1
Discussion
: "Beautiful little mutant"
47 posts
#2
LECA
: "I got this plant in rough shape with most of the roots nearly rotten off. Fast forward 3 weeks in semi hydro and it’s thriving."
33 posts
#3
Pon
: "SH saved my rex begonia."
18 posts
#4
Moss
: "Covering in a bag makes the spaghnum moss moldy?"
2 posts
Member Growth in r/SemiHydro
Yearly
+9k members(32.1%)
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Last updated: October 1, 2026