The egg, nature's most perfect shape, makes a surprisingly beautiful terrarium. A DIY glass egg terrarium kit gives you a slant-cut, egg-shaped glass vessel plus the layers and plants to fill it, so you can build a self-contained little garden in an afternoon with no guesswork.
Why a DIY kit is the easiest way to start
A good kit takes the two hardest parts of terrarium-making off your plate: sourcing the right vessel, and knowing which layers to add in what order. Most egg-terrarium kits arrive with the glass egg, drainage gravel or LECA activated charcoal substrate, decorative stones and sometimes the plants themselves, everything measured out for that specific vessel.
How to build an egg terrarium, step by step
- Drainage first a 2–3 cm layer of gravel or LECA at the base of the egg.
- Charcoal a thin scatter to keep the closed environment fresh.
- Substrate cactus/succulent mix for an open, slant-cut egg; a moisture-retentive mix if it seals for moss.
- Plant with a slant-cut opening, work your plants in at an angle and firm the soil around the roots.
- Finish top-dress with sand, pebbles or moss to hide the soil and set the scene.
Because a slant-cut egg is an open terrarium, it's ideal for succulents and cacti. For the full method (and the closed-terrarium version) see our step-by-step terrarium guide.
Caring for your egg terrarium
Give it bright, indirect light and water sparingly, succulents in an open egg need only a small drink every 2–3 weeks once the substrate dries out. Avoid direct sun, which turns the glass into a little oven.
Where to buy a DIY egg terrarium kit
Egg-terrarium kits are widely available. Browse DIY egg terrarium kits on Amazon or pick up a slant-cut glass egg vessel and plant it yourself. More options in our curated shop.
Frequently asked questions
Are egg terrariums open or closed? Most slant-cut egg vessels are open, which suits succulents, cacti and air plants. A fully sealed egg can hold humidity for moss instead.
What plants suit an egg terrarium? For open eggs: small succulents, cacti and air plants. For closed ones: moss and tiny ferns.
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