Cross-breading for Tantalplant seeds

[Angelhearth]

Then either the diagramm or your understanding of it is wrong.

One thing you need to know about cross breeding is that what seed you may get (if your crossbreed is sucessful) is decided when planting the seed, based on the plants already growing in the spots excatly next to the one you're planting in right now. If you have one kind of crop that grows faster than the other one (in this case: Krakka grows faster than Eggplant), you can - and should - harvest the Krakka roots so you can plant new ones that will grow right next to the Eggplants you already have. If your first batch of eggplants is ready to harvest before your second batch of Krakka, harvest the eggplants and plant new ones, to make the most out of the second round of Krakkas you've got.

Shadygrove is also right with their suggestion to use throw away soil for the first seed you plant - use Thanalan III after that. If your timing is right (you can manipulate with fertilisier if needed) you can keep crossbreeds going forever, without ever looking at an empty garden.

But why should I harvest the Krakka Roots? I only want the Tantalplant, nothing else.