Trillium albidum seed (Giant White Trillium)


PNW native sessile type trillium with white petals sometime marked a faint streak of pink at the base. Lovely huge leaves marked with mottled shades of green.

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An absolutely stunning sessile type trillium from the PNW.  We were lucky to have this trillium in the grab-bag mix from a seed exchange. It took us several years to ensure proper identification.  There are several more from this grab-bag that require proper ID.  Natural range is from Washington to California. Needs moist humus rich acidic soils and dappled shade for optimal happiness.

  • Seed Count: 10-12
  • Collection Date: July 2023
  • Hardiness Zone: 6-9
  • Preferred conditions: dappled sun; moist woodland acidic humus rich soil
  • Height and Width: 45cm x 45cm
  • Germination test type: hand sort
  • Family: Liliaceae

How to germinate Trillium albidum seeds:

Stratified seed. Pre-treated with our Skookum Grow seed soak solution. Our spring sown Trillium seed typically germinates by late September. Stored in moist medium, its best to add a little more moist medium and keep in the side compartment of your fridge at 2-4C until you are ready to sow. When you are, sow seed 5mm deep with a thin layer of mulch. Sowing medium should be humus rich well draining and slightly acidic. Never let fall sprouting seedlings freeze. We keep our trillium pots in an unheated greenhouse over the winters and bloom time can be reduced by a year or two. Never give the kids strong hot sun and poor dry soils. Prefers dappled shade and cool locations.


Additional information

Weight 2 g