Glass Gardens for the Plant-Obsessed
Terrariums—miniature ecosystems in glass containers—became Instagram-perfect plant decor starting around 2015, appealing to millennials seeking low-maintenance greenery for small spaces. Clear glass vessels showcased layered soil, charcoal, moss, and succulents/air plants arranged like tiny landscapes requiring minimal watering (closed terrariums) or weekly care (open designs).
Pinterest searches for terrariums increased 300% between 2015-2017 as the houseplant boom intersected with DIY culture. Craft stores stocked geometric glass containers ($15-50), terrarium kits ($25-40), and miniature accessories (tiny furniture, animals, crystals) enabling personalized mini-worlds. West Elm and Anthropologie sold designer terrariums for $40-$150.
The Science (Sort of)
Closed terrariums create self-sustaining moisture cycles—water evaporates, condenses on glass, rains back onto soil. This theoretical perpetual ecosystem appealed to busy plant-killers seeking unkillable greenery. Reality proved more complex: mold growth from excess moisture, plant death from insufficient light, and size limitations as plants outgrew containers challenged the “set it and forget it” promise.
Succulent terrariums became most popular despite botanical inappropriateness—succulents need airflow and dry periods, contradicting terrarium humidity. The aesthetic appeal (tiny jade plants, echeveria rosettes) trumped horticultural best practices. Experts recommended open containers for succulents, closed for ferns and moss, but Instagram aesthetics won.
DIY Workshops and Kits
Terrarium-building workshops became trendy date nights and bachelorette party activities ($40-75 per person). Participants left with custom creations and basic plant knowledge. The Bar Method and pottery studios added terrarium nights alongside paint-and-sip events. Mobile terrarium parties brought the experience to offices and homes for $50-$100 per person.
Pre-assembled terrarium subscription boxes like Lula’s Garden ($48 every 2 months) and Succulent Studios ($65-$135) delivered curated arrangements. While convenient, they eliminated the DIY joy that attracted many to the craft initially. By 2023, terrariums remained popular starter plant projects, with realistic expectations replacing the immortal-plant fantasy.
Sources: Pinterest trend data, terrarium kit sales (Etsy, Amazon), workshop business models, West Elm catalog archives