Top 7 Moisture-Loving Ferns and Foliage for Terrariums in Canada - 2026

A perennial best-in-class choice for moisture-loving foliage, the Boston Fern 'Compacta' is prized for its lush, arching fronds and strong performance in humid indoor environments. It outperforms many companions on sheer volume and air-cleaning presence, while remaining robust and forgiving compared with the more delicate Selaginella and the smaller Lemon Button; financially it is widely available at competitive prices, making larger specimen purchases economical for designers and collectors.

Maidenhair Fern stands out for its elegant, lacy fronds and high aesthetic value in moisture-loving collections, but it demands consistently high humidity and careful watering. It ranks as the premium, visually striking option compared with hardier choices like the Button or Boston ferns, which can translate to higher maintenance time and replacement costs for less experienced keepers.

The Lemon Button Fern earns its market-leader spot for compact, tight fronds ideal for small spaces, terrariums, and mixed-planter use where classic Boston Ferns would overwhelm. Compared with the Boston Fern it requires less potting volume and ships more economically, and versus Selaginella it tolerates a broader temperature range, giving growers a lower-cost, faster-turnaround option for retail units and small-space installations.

Fittonia 'Pink Angel' delivers vivid pink venation and low-growing, carpet-like growth that excels in terrariums and humid microclimates, offering a decorative pop that complements fern foliage. Technically it requires less vertical space and often lower purchase cost than large ferns, but its strict humidity needs make it more comparable to maidenhair in maintenance intensity.

Baby's Tears is a fast-spreading groundcover with delicate, densely packed leaves that create an instant carpet in pots and terrariums, making it the most economical choice for quick coverage among these moisture-loving species. It propagates readily and reduces upfront planting expense compared with slow-establishing ferns, though it lacks the vertical drama of Boston or maidenhair ferns.

Selaginella 'Aurea' is the technical standout for moisture-loving displays that need a carpeted, moss-like texture and vivid chartreuse color; it excels in terrariums, vivaria, and high-humidity understory plantings. Unlike the larger ferns, Selaginella spreads quickly to form dense mats, reducing replacement and gap-filling costs for landscapers, though it demands consistently high humidity so buyers should account for modest humidity-control investment.