SRGC Seed-To Plant or Not To Plant

Eugene Zielinski
Mon, 26 Feb 2018 22:36:14 PST
Here are some recommendations.
Tecophilaea, Narcissus, Scilla -- These seeds can tolerate dry storage.  I would wait till fall before sowing.  Store them in the refrigerator if you like.
Trillium -- Most trillium have seeds that do not tolerate dry storage very well, but Trillium (Pseudotrillium) rivale may be an exception.  I would sow these right away and put them outdoors.  The root may germinate at warm temperatures, but the seed may then need a period of cold before a leaf is produced.  You probably won't see the leaf until 2019.  (Norm Deno found that treatment with Gibberellic Acid-3 greatly improves germination in trillium.  He didn't test T. hibbersonii or rivale, though.)
Erythronium -- My understanding is that E. montanum gets some moisture year round.  I would sow the seed now but not expect to see seedlings until spring 2019.  Norm Deno observed germination this way: 3 months at 70 F, followed by 3 months at 40 F, then move seeds back to 70 F.  He only tested two seeds, however, and only one germinated.
Aphelion -- This refers to planetary motion.  I wonder if auto-correct changed Ipheion to Aphelion?

Eugene Zielinski
Prescott Valley, Arizona

-----Original Message-----
>From: Jan Jeddeloh <>
>Sent: Feb 24, 2018 5:37 PM
>To: Pacific Bulb Society <>
>Subject: [pbs] SRGC Seed-To Plant or Not To Plant
>My Scottish Rock Garden Club Seed finally arrived today.  Maybe APHIS has some sort of requirement that it has to sit on someone’s desk for at least two weeks before they send it on because it took over a month.  So now the question is should I plant my seed of bulbous plants now or hold it until fall.  We’re still expected to have some nights with temperatures at or just below freezing but the seed won’t get the kind of chill it would get if I planted it in the fall.  
>So here’s the bulbous loot I received:
>Narcissus sp.
>Erythronium montanum
>Trillium rivale
>Trillium hibbersonii (hope springs eternal)
>Scilla madeirenses
>Aphelion montevidense
>So what is the wisdom of the PBS list on late winter seed sowing?
>Jan Jeddeloh, Portland, Oregon, USA, more or less zone 8
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