Astilbe Red Sentinel
Astilbe 'Red Sentinel' photo courtesy of Walters Gardens

Japanese Astilbe

'Red Sentinel' has scarlet red flowers that are held in lacy panicles. The foliage is forest green and both the foliage and stems are often tinged with red. This variety is one of the first Astilbes to bloom.

  • Height: 51 - 61 cm (20 - 24 in)
  • Spread: 30 - 46 cm (12 - 18 in)
  • Cold Hardiness: Zone 4
  • Sun or Shade: sun to partial shade
  • Bloom Time: early to midsummer
  • Leaf Colour: green
  • Bloom Colour: scarlet red
  • Critter Resistance: deer and rabbits

Growing and Maintenance Tips

To grow Astilbes well pay attention to their need for water. Do not let the soil dry out because the leaves will go crispy and drop off. Rich soil in partial shade is the best situation. In sun it will be hard to keep them moist enough and, in too much shade, they will not bloom well. Leave old foliage on until the spring to protect the crowns of the plant.