Asplenium Dimorphum x Difforme, Asplenium ‘Parvati’, Asplenium 'Austral Gem' Ships in pot. Pot size 4". You will receive a plant very similar to the one pictured. Asplenium 'Parvati' (Austral Gem Fern) is a unique, ultra-tough hybrid fern. Its standout feature is its thick, glossy, dark green fronds with a waxy coating that feels almost plastic to the touch. Unlike typical ferns, it does not shed, easily tolerates dry indoor air, and forgives occasional missed waterings. It grows into a compact, lush mound up to 16–18 inches tall. Asplenium Dimorphum x Difforme Care Guide: Hardiness zone (USDA zone): 9-11. Light: Bright indirect light. Shield from direct sun. Watering: Regular, when topsoil dries out. Do not overwater. Temperature: Average room temp: 64–75°F. Protect from drafts. Humidity: Moderate. Tolerates indoor dry air very well. Soil: Lightweight, slightly acidic, with perlite and bark. Toxicity: Pet-friendly. Non-toxic to cats and dogs. It is advisable to purchase a heat pack during cold weather: Heat Pack