The Mason jar cover that protects your plant, at every stage of its growth.
No more Mason jars overgrown with algae and seedlings drying out before even breaking the surface. The 1L Decorative Mason Jar Cover transforms any 1L Mason jar into a true evolving mini-greenhouse, designed and printed right here by Monark Dimension.
The system follows your plant through every stage of its growth:
Step 1 — Germination The removable darkness dome recreates the natural conditions of a seed buried underground — complete darkness — while trapping the necessary humidity for germination. Once the seed has sprouted, the dome is removed with a click (magnetic attachment).
Step 2 — Reservoir Protection The opaque body of the pot cover completely blocks light from reaching the nutrient water. Result: no more algae proliferation in your nutrient solution, even in direct sunlight.
Step 3 — Protected Growth The flexible TPU sunshade replaces the dome and protects the rockwool from UV rays and direct light, while allowing the young shoot to emerge freely thanks to its flexible slits — the flexible plastic adapts to the stem without strangling it.
3-piece magnetic body. The pot cover divides into three sections — the top, the left shell, and the right shell — held together by integrated magnets. Need to check your water level? Simply remove the right piece, without disassembling the entire system. And to keep your seedlings organized, a magnetic frame with a laminated insert allows you to write (and erase) the name of each variety.
A wooden stake, included with the kit, attaches directly to the top once the plant is taller, for discreet support without additional plastic.
Key Features
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Opaque anti-algae body — blocks light, protects nutrient solution
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Removable darkness dome — simulates underground darkness + retains germination humidity
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Flexible and slotted TPU sunshade — protects rockwool from UV, allows stem to emerge without constraint
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Wooden stake included — attaches directly to the top once the plant is taller
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3-piece magnetic body (top, left, right) — remove the right piece to check water level without disassembling everything
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Magnetic frame + laminated insert — identifies each plant, reusable
What's Included
- 1 x 1L 3-piece magnetic jar cover (top, left shell, right shell — PETG)
- 1 x Removable darkness dome
- 1 x Flexible TPU sunshade
- 1 x Magnetic frame with erasable laminated insert
- 1 x Wooden stake
- 1 x Round rockwool substrate — 3.8 cm (1.5")
- 1 x Round hydroponic basket — 5 cm (2")
- Compatible with standard 1L Mason jars (Bernardin/Ball, regular mouth)
Important note: To preserve its shape and effectiveness, the Mason jar cover is not dishwasher safe. Hand washing with lukewarm water and mild soap is recommended.
