Astilbe 'Red Sentinel'

Hybrid Japanese Astilbe, Japanese Japanese False Spirea, Red Sentinel False Spirea

A standout shade-loving perennial prized for its vivid cherry-red flower plumes and neat, upright habit. ‘Red Sentinel’ is one of the brightest red astilbes, offering strong color contrast in shaded borders and woodland gardens.

Key features



Width: 18–24 in (1.5–2 ft)



Height: 22–30 in (1.8–2.5 ft)



Flower color: Bright cherry red



Bloom time: Early to mid summer



Foliage: Dark green, finely divided, glossy



Form: Upright, clump-forming



Life cycle: Herbaceous perennial



Growing conditions



Sun: Part shade to full shade (morning sun tolerated with adequate moisture)



Soil: Moist, rich, well-drained; prefers humus-rich soils



Water: Moderate to high; soil should remain consistently moist



Hardiness: USDA Zones 4–8



Landscape use



Shade and woodland gardens



Perennial borders



Mass plantings for bold color



Along streams and ponds



Containers in shaded locations



Notes



Excellent cut flower



Generally deer resistant



One of the best astilbes for true red color



Foliage remains attractive after bloom



Performs best with consistent moisture

Plant type

Perennial

Height

30-36''

Width

18-22''

Hardiness zones

3–8

Sunlight

Full Shade, Partial Shade

Growth rate

Moderate

Bloom time

Early Summer

Flower color

Red

Leaf color

Green

Fall color

Brown, Dark Green

Attracts

Butterflies, Hummingbirds

Soil

Clay, Loamy, Well Drained

Landscape use

Border, Container, Mass Planting

Shape

Broad Upright

Deer resistant

Yes

Drought tolerant

No