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HORTUS — A CLOSED WORLD

A world that waters itself.

Hand-sealed terrariums that create their own perfect ecosystem. Zero watering. Zero maintenance. Just pure, living beauty that thrives for years.

water_drop100% self-sustaining
opacity0 waterings
timer5+ year lifespan

100% self-sustaining
0 waterings

Everything a world needs

The perfect balance

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Sealed water cycle

Moisture evaporates, condenses on the glass, and returns to the soil as pure water. A self-regulating hydrological system that requires no intervention.

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Balanced light & humidity

The enclosed environment maintains optimal humidity levels while diffusing light to prevent scorching. Plants photosynthesize using their own recycled moisture.

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Hand-blown glass vessel

Each terrarium is crafted from thick-walled, lead-free glass with a seamless seal. The curvature maximizes light diffusion while creating a magnifying effect for viewing.

Simple. Sealed. Self-sustaining.

How it works

01
grass

Choose your ecosystem

Select from our curated biomes: Desert Succulent, Tropical Moss, or Woodland Fern. Each is scientifically balanced for long-term stability.

02
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We plant & seal it

Our artisans hand-select each plant, layer activated carbon and soil, then hermetically seal the vessel using food-grade epoxy. Zero air exchange.

03
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Watch it thrive

Place in indirect light and observe the natural cycles. No watering, no fertilizing, no pruning. Just pure observation of a living world in balance.

Voices from our closed worlds

What owners experience

"I've had my terrarium for 18 months. Not a single drop of water added. It's become a daily meditation watching the condensation cycle."

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Alex Rivera

Urban Botanist

"As someone who kills cacti, this is miraculous. It sits on my north-facing windowsill and has actually grown. Zero effort, maximum reward."

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Jordan Lee

Freelance Designer

"The sealed ecosystem creates its own weather. I love checking for new growth each morning. It's like having a piece of prehistoric earth on my desk."

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M

Morgan Chen

Science Teacher

Choose your world

Transparent, one-time investment

Sprout

$59

One-time • Includes mini terrarium

  • check4" diameter vessel
  • checkDesert Succulent biome
  • checkActivated carbon layer
  • checkCare guide included
Select Sprout

Monolith

$299

One-time • Statement piece

  • check8" diameter vessel
  • checkWoodland Fern biome
  • checkCustom base included
  • checkExtended warranty
  • checkWhite-glove delivery
Select Monolith

Common questions

Understanding your closed world

Close the loop. Open a world.