Answer: White pumpkins such as "Lumina" are grown essentially the same way as regular orange pumpkins with the days to harvest at 85. The size of the pumpkin will depend on the growing conditions, but Lumina is not at all a giant sized variety. It is described as 8 inches and 10 to 12 pounds, a nicve size for a table decoration. Seed is usually available from large catalogs such as Burpee although you may need to check in the heirloom section. If grown well and ripened correctly (pick them after the rind has hardened so that you can't pierce it easily with your finernail and take several inches of stem "handle" when you cut it)and cured well they should last for at least 8 weeks after harvest, but you will need to take care to store them correctly. They will need to be kept cool and dry, at say 60 degrees for longest keeping.
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