Sidalcea hendersonii seed (Henderson’s Checkermallow)


Stumbled across these beauties. No kidding it stopped me in my tracks.  Loves moist soils such as grassy marshes, estuaries and the like. Tolerant of salt. Thrives in sun.

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An endangered PNW native. Lovely glowing deep pink flowers bloom in sequence on dense spikes providing a month long display.  Growing among with marsh grasses, these plants can be tall to nearly 2m, with half of its height being flower spike.  I didn’t notice a fragrance, but you rarely do with members of the Mallow family.  Lovely palmate leaves. Does well in large containers.  If you can grow Gunnera, you can grow this.  Deer resistant bee magnet.

  • Seed Count: 20-25
  • Collection Date: August 2022
  • Hardiness Zone:  5-10
  • Habitat: moist soils (essential); full to semi sun
  • Height and Width: 1-2m x 50cm
  • Germination test type: hand sort
  • Family:

How to germinate Sidalcea hendersonii seeds:

Soak seed 24-48 hrs. Change soak water a couple of times.  Requires 90 days cold stratification. You can do this via baggie sowing or outdoor sowing in the fall.

Additional information

Weight 2 g