The blooming plant to the left is my Yucca 'Ivory' (BMJ #1582), the tall blooming Yucca to the right is an unknown Yucca plant (BMJ#1402)
Photo from July 25th. 2003.
Copyright ©2003-2005 Benny Moeller Jensen

Where did I get the plant from:
I got the plant in 2000 from Patrik Flank in Stockholm, Sweden.

Short description of the plant:
Plant: acaulescent with several large rosettes, forming rhizomes up to 20 cm long. Leaves: dark green, floppy, 50 cm long, 3,5 cm wide, with few thin fibers at the margin of the leaves. Inflorescence: pubescent, 115 cm high, paniculate with short branches up to 12 cm, held in an upright angle. Scape: 40 cm starting from well above the leaves. Flowers: pendulous (bell shaped), white, small 3 cm across. Fruit apple-green, smooth surface, constricted, 24-26 mm thick and 38-43 mm long, variously and irregularly flattened in places, as if saved off with a knife.
Seeds not know at the time of writing!

Where do I grow the plant:
I grow it two different raised well drained beds, but I will try it in "normal" garden soil, when I start to propagate it.

Hardiness:
At the time of writing have I only grown it for a short time, so I can't really say if it will survive a hard winter, but it's promising.

Other notes:
I received it as Yucca flaccida 'Ivory', but the plant has very short branches on the inflorescence.
The  cultivar name Yucca flaccida 'Ivory' was published by Rowland Jackman, the plant received an "Award of Merit" from the Royal Cultural Society in 1966.
 

In the summer of 2003 I tried to pollinate the flowers with pollen from a Yucca glauca:

#1582 Yucca 'Ivory'? X #1461 Yucca glauca, 6 flowers pollinated = 2 fruits (4 aborted)

I also used the pollen from this plant to pollinate the following:

#49 Yucca flaccida X #1582 Yucca 'Ivory', 1 flower pollinated = 1 fruit. (0 aborted)
#1461 Yucca glauca X #1582 Yucca 'Ivory', 2 flowers pollinated = 0 fruit (2 aborted)

It will be very interesting to see the outcome of the new hybrids, but I do not expect flowers in the new hybrid until 2010 at the earliest!

More details of the Yucca hybrids made in 2003.