To get Blood Pepper seeds, you need to crossbreed two things: glazenut and chives. Both of these things also need to be crossbred, so I'l break it down.
First: Glazenut
Prickly Pineapple Seeds (harvest 9am Costa Del Sol slot 1) and Old World Fig (harvest Dravanian Forelands 2am/pm slot 1)
Next, you need to make Dalamud Popotos.
Dzemael Tomato (harvest East la Noscea 1pm slot 1) and Midland Cabbage (North Shroud).
Then, you need to make Chives.
Dzemael Tomato and Dalamud Popotos.
Finally, crossbreed Chives and those Glazenuts you held on to to get your blood peppers!
Make sure to ALWAYS use Grade 3 Thanalan soil and plant eight seeds in an alternating pattern for best results like so:
1 2 1
2 x 2
1 2 1
http://www.ffxivgardening.com/index.php has more info if you want to learn more about gardening crosses.
And rip off ifrit's horn.
Awesome thanks for this! Just getting into gardening and didn't know how to make them peppers ▪.▪
I've been using this for ages now. Its the best thing ever and I thank you a TON!