For anyone who has saved a picture of a terrarium and had no idea what to actually buy
Three illustrated builds — closed glass terrarium, succulent trio & mounted staghorn fern
Three: a closed glass terrarium, a three-pot succulent group and a mounted staghorn fern. Each one gets a dimensioned plan, a shopping list with quantities, numbered assembly steps and a troubleshooting page. The plans are original specifications; the care advice is cited to 21 horticultural sources.
Written by Abdelmounim El Moussaddar · published by TopDigitalKnowledge · 46 pages, 9 figures, 21 sources cited inline of 22 listed · last verified September 2026
What everybody says
A layer of gravel or clay balls at the bottom of a container gives it drainage.
It does not. Water does not leave a container that has no hole in it, and in a pot that does have one, a coarse layer raises the saturated zone rather than lowering it. This guide keeps a thin clay band in the glass build for its appearance and says so, while rejecting the claim that it prevents overwatering. The jar still has no drain; the moisture routine is what keeps it alive.
A closed glass terrarium with two Fittonia and a Selaginella. Three Haworthia in separate pots on one tray. A young staghorn fern tied to cork on a tabletop stand. Each one runs from an empty container to a settled display, with nothing left to your imagination in between.
Jar diameter and height, opening width, substrate volume in litres, layer depths front and rear, pot sizes for each plant, tray dimensions, the clearance to leave around the fronds. 28 numbered assembly steps across the three projects, each stage ending in a checkpoint you can actually verify — so you order the parts before you start rather than finding out halfway through that your hand does not fit through the opening.
A layer of stones “for drainage” is the most repeated advice in this hobby and it is wrong twice over. A sealed jar has no outlet, so nothing drains anywhere; in a pot that does have a hole, a coarse bottom layer raises the saturated zone instead of lowering it. This guide keeps a thin clay band in the glass build because it looks right, says so in those words, and gives a substrate-only alternative for anyone who would rather not.
21 sources, every one the RHS, a university extension service or a national botanic authority — Oklahoma State on terrarium layers and planting depth, NC State on the three Haworthia, Wisconsin and Florida IFAS on mounting a staghorn fern, Minnesota and Maryland on light, watering and salts. No blogs. No retailer guides. A numbered note sits at the foot of every page that uses one.
Three troubleshooting pages arranged by what you can see rather than by what is wrong. A care table that puts the three watering routines side by side, because the container decides where water can go. A first-30-days page of inspection prompts and deliberately not a watering timetable. A substitutions page that states, for every swap, what must stay true. And three printables: a build record, an observation log and a set of quick-care cards.
A book. 46 pages of design, assembly and care, with three printable worksheets inside it — a build record, an observation log and a set of three quick-care cards. It is not a cut-and-fold pattern and it does not include any physical materials.
No. Nothing ships. It is an instant digital download, and the shopping lists tell you exactly what to buy: species, starter pot sizes, jar and tray dimensions, substrate volumes in litres and the quantity of every component.
No. The nine plates are digitally rendered illustrations of the intended designs, not photographs of built displays, and the designs have not been growth-tested. The dimensioned plans and written specifications govern the build; the plates show composition, materials and intended appearance.
It addresses the commonest reason, which is the belief that a layer of gravel or clay at the bottom provides drainage. It does not, and a sealed jar has no outlet at all. The guide keeps a thin clay band for its appearance, says plainly that it is decoration, and replaces the myth with a moisture routine based on inspection rather than a watering schedule.
Yes, and it names the easiest starting point rather than leaving you to guess: begin with the three-pot succulent group, which has the simplest assembly and lets any single plant be lifted out. The glass garden is the contained miniature landscape, and the mounted fern is the most hands-on of the three.
PDF only, US Letter, delivered instantly. There is deliberately no EPUB: the value here is in full-page plates and dimensioned plans, and a reflowable format destroys both. It prints cleanly at home, which is what the worksheets are for.
46 pages · PDF
Three buildable displays, drawn and dimensioned, with the plant care cited page by page. 21 sources, every one from the RHS, a university extension service or a national botanic authority.
$11.99
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TopDigitalKnowledge · written by Abdelmounim El Moussaddar · last verified September 2026
Every number in this guide is traced to a named, published source.
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