Lazyhat,
I don't really know anything about maiz morado (purple corn) but you can get the seeds at:
tradewindsfruit.com
or Redwood City http://www.iterasi.net/openviewer.aspx?sqrlitid=fbqdfhl0dukpjw50efzqaw

This is an ancient Peruvian corn which would involve the Incas not the Aztecs (Mexico).

teauteau Please examine the photo. ;) LOL
oh so its Incas, oops well I dont know my history to well of that area.:P

So no one knows The maturity days of this plant? Or how tall it gets.. Well I'll hope for the best. Hopefully raccoons dont like it. Its a Dent Corn I think. I also plan to save some seed from it so I'm planting at least 30 corn. is that good enough to prevent inbreeding depression in corn?
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Cornell reports that "Hopi" purple corn is 80-90 days to maturity.

Because it seems to be historically from higher elevations I would expect short "Days to maturity".

Hey Lazyhat; You need at least 200 plants to prevent inbreeding depression in corn.

25-50 plants is the Minimum amout of plants that you need to minimize, not eliminate inbreeding depression. If you only start with the minumum # you won't have enough plants after "Rogueing out" off type plants.
The 25-50 Minumum is with healthy, true to type plants.
Again this number is to minimize inbreeding depression.

I thought I would update this thread on the progress of my purple corn. Here they are 4 months later.
There huge! I think one is pushing 15 feet. one of them has 3 ears on it. Still waiting on a fully developed ear...

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(Very old thread, I know. Sorry.) Lazyhat, did the maiz morado ever tassel and develop mature ears? I bought some seed, but I'm not sure it'll produce anything here. I live about 10 lat. degrees south of Canada, so I reckon that'd cause tasseling a bit earlier. (Shorter days and all that.)

I grew it in Hutchinson, Minn. some years back when we had a very long growing season ( seventy plus degrees all the way into Oct.)

I got two fully developed ears out of it.

It is a 180 day corn, so up north must be in the ground by early may at the latest and hope for no frost till Nov.

I have been trying to grow Purple Corn ( Maize Morado) for a few years now, in the passed i seeded directly in the garden the first week in May, by late October they've tasseled and had immature ears, the plants were about 8 ft. tall the frost came and I lost my small crop.
This year I started the seeds indoors in March,transplanted them to the garden in May, by now the plants are huge over 7 feet tall, no tassels yet. So I wait to see what happens.

I grew a few plants last year that I planted in June but it was not until November that the 11 foot tall plants have any visible ears. I was able to get a few mature grains from one stalk and planted this year in May. Today I measured a stalk at just shy of 9feet, but it is August 19th in Northeast Ohio. Who knows if the growing season will last into November this year.