Washingtonia filifera
California Fan Palm
About the plant
What it is and where it grows — not part of any germination protocol.
- Habit
- Perennial, TreePLANTS Database
- Native range
- Native to the lower 48 statesPLANTS Database
- Note
- The seed coat slows germination rather than stopping it: 75% comes up without any help.Seed Germination Theory and Practice, 2nd ed.
Toxicity is noted only where a source states it. No note here is not a finding of safety.
Sources: PLANTS Database — USDA NRCS; Seed Germination Theory and Practice, 2nd ed. — N. C. Deno.
This source reports two treatments. Both are shown.
Protocol 1
DerivedN. C. Deno, 1993Difficulty Low
Start around March 22, 2027 for a May 3 last frost.
Nick or sand the seed coat
Puncture the seed coat.
Sow and cover
No stated waiting before sowing. Then 14 days to germinate.
100% germination in 14 days.
Every seed, in a fortnight. Deno gives no temperature for either treatment.
Protocol 2
DerivedN. C. Deno, 1993Difficulty Low
Start around March 15, 2027 for a May 3 last frost.
Sow and cover
No stated waiting before sowing. Then 21 days to germinate.
75% germination in 21 days.
75% with nothing done to it: the coat slows this palm rather than stopping it.