Penstemon digitalis Plant Data Family Name: Plantaginaceae Common Name: beard tongue Other Name(s): Penstemon digitalis Hardiness Zones: Zone 4: (-34 to -29 C) Pest: Fungal leaf spot, Rust, Slugs or snails, Flowering Time: Jun, Jul, Aug, Leaf Form: Simple, Leaf Arrangement: Opposite, Leaf Shape: Oblanceolate, Oblong, PlantSomething BC Wholesale Listings No members have selected this plant.