Astilbe simplicifolia, commonly known as entire-leaved astilbe, is a perennial herb native to the mountainous regions and woodland edges of Japan and North Korea. It typically grows to a height of 12-18 inches (30-45 cm) and a similar width, featuring glossy, deep green foliage and plume-like flower spikes. The flowers range in color from white to pink and bloom in mid to late summer, providing a showy display that attracts pollinators.

Entire-leaved astilbe is valued for its low maintenance, resistance to deer, and ability to thrive in shady garden spots where other plants might struggle. It is often used in border plantings, woodland gardens, and as a ground cover under taller shrubs or trees. This astilbe prefers consistently moist, humus-rich soil and benefits from mulching to retain soil moisture. While it can tolerate drier conditions once established, it will not flower as profusely. The cultivars ’Atrorosea’, ’Bronce Elegans’, and ’Sprite’ are particularly notable for their garden performance and have received the Royal Horticultural Society’s Award of Garden Merit. Potential problems include powdery mildew and leaf spot, especially in hot, dry conditions.CC BY-SA 4.0