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Here are the five reliable sorts:
1. Eranthis hyemalis; and I mean the western European forms, not the
eastern forms sometimes called E. cilicica.
2. Trillium luteum; the name is dubious, but a clump of this pale
yellow-flowered sessile Trillium has been here for over thirty years.
3. Hymenocallis Sulphur Queen; not really a garden plant here, although it
has survived winters near a wall.
4. Lilium hansonii; one of the few martagon types which does well in this
area; this lily has an interesting history which might make a good basis
for another thread.
5. Sternbergia lutea in the familiar commercial form. Is this a clone? Does
it ever set seed?
.........
Here's the wish list:
1. Hymenocallis amancaes
2. Paramongaia weberbaueri
3. a truly hardy, vigorous yellow-flowered Lycoris
4. a reliably hardy yellow-flowered Bletilla
5. a yellow tiger lily (Lilium lancifolium aka L. tigrinum), if there has
ever been such a thing