Keepsakes
Biodegradable urns
Biodegradable urns are designed to break down naturally over time, returning the ashes to the earth or water. They suit families who want a greener, gentler goodbye.
Our picks
My Favorite Biodegradable Urns
Our most-recommended biodegradable urns for every setting: planting a tree, an earth burial, or a release on the water.
Our favoriteGeos Biodegradable Tree Urn
$320Holds the ashes with a growing medium so they nurture a tree of your choosing. A memorial that keeps living.
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The Journey Biodegradable Earthurn
$175A classic handmade urn that works for earth burial or water release, so the setting can be decided later.
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Joshua Sandstone Eco Burial Urn
$175Pressed sandstone with a natural finish, made to break down gently after an earth burial.
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Salt Serenity Himalayan Urn
$330Carved from Himalayan rock salt, it dissolves completely in water and returns to the earth if buried.
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Simple Handmade Biodegradable Urn For Water
$170Understated handmade paper, dignified and affordable. A quiet choice for a simple ceremony.
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Salium Shell Biodegradable Sea Burial Urn
$220Shaped like a natural shell and made from compressed salt, dissolving completely at sea.
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Large Adult Eco Sea Burial Turtle Urn
$259A sea turtle that floats briefly before its descent, a favorite for families releasing ashes offshore.
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Fresh Flowers DIY Biodegradable Urn For Water Burial
$190A floating urn the family dresses with fresh flowers before the release, making the preparation part of the ceremony.
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Mini Fresh Flowers Biodegradable Urn
$75A keepsake-size urn for releasing a small portion of ashes, often carried by grandchildren.
See urn→Products link to You Are Forever, our sister memorial store, or to partners; we may earn from qualifying purchases. Prices shown were current when this guide was updated.
Water urns vs earth urns
Biodegradable urns generally come in two forms. Water urns are built to float briefly and then sink and dissolve, making them ideal for a release at sea or on a lake or river. Earth urns are made for burial, breaking down in the soil over months.
Tree and plant urns
A popular variation is the tree urn, which combines the ashes with soil and a seed or seedling so that a tree or plant grows as a living memorial. These are designed to be planted in a garden or a place that was meaningful to your loved one.
Common materials
Biodegradable urns avoid plastics and metals in favour of materials that decompose safely.
- ✓Recycled or handmade paper
- ✓Compressed salt (dissolves quickly in water)
- ✓Sand and gelatine
- ✓Plant fibres, bamboo and cellulose
- ✓Soil-and-seed blends for tree urns
Before you buy
If you plan a water release, check local rules — many regions require scattering or release at a set distance from shore. For a burial, confirm your cemetery or green burial ground permits biodegradable urns.
FAQ
Biodegradable urns: common questions
- Are biodegradable urns allowed for sea release?
- Often, yes, but rules vary by country and region. Many places require the release to happen a set distance from shore and ask that only fully biodegradable materials enter the water. Check local regulations before planning.
- How long do biodegradable urns take to break down?
- It depends on the material and environment. Salt or paper water urns can dissolve within hours to days, while buried earth urns typically break down over several months.

About the author
Adam Binstock
Founder of Cremation Institute
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