Before I forgot, use these. They're a big help.
http://www.mediafire.com/convkey/6d85/qxxxggmm3bganv46g.jpg
http://www.mediafire.com/convkey/511a/a3eoiji5raow1nx6g.jpg
http://www.mediafire.com/convkey/ac42/kr94sna3hxu0hr66g.jpg
(1 or 2 of the berry pictures are wrong, but the names and all other info seemed to check out and that's all you need anyway.)
Seeds that are "Very-" (such as Very Dry) count as "2" So you would use a Very Spicy seed, and a normal Sour and a normal Bitter for a Leppa. (the order they're put in doesn't matter btw)
Berries will only harvest the flavor of seeds that went into them, semi-randomly across the flavors(if it has multiple flavors) with "Very" seeds being less likely to be harvested. So something like a Leppa would harvest Spicy, Sour, and Bitter seeds with a small(25%? Don't quote me on that. Just feels around that) chance of them being "Very"