Manzana is a slightly later variety with thick tubers. It has a nice, even yellow skin and flesh and flowers abundantly. This would be a good variety to try if you are looking for a solid yellow like Amarillo. We will probably never offer Amarillo seeds, because they are so difficult to produce, but Manzana is similar and it is pretty easy to get seed from it.
Oca is normally propagated vegetatively, by replanting tubers, which are clones. Probably because oca has been grown this way for hundreds or thousands of years, it is difficult to get true, botanical seed, which is the key to breeding new varieties.
When you grow out true oca seed, you will get a brand new variety that you can maintain indefinitely by replanting the tubers. Plants that are propagated vegetatively are very appealing this way: if you get a plant that you like, you have a stable new variety that is all your own.
These are open pollinated seeds of the variety Black. Black has a red exterior that darkens to a very dark red/black several weeks after harvest. It is one of the most prolific seed producers among varieties with a long-styled flower. Unlike our mixes, which contain seeds harvested from many different varieties, these seeds are all collected from a single parent variety, although they were open pollinated. Varieties grown from this seed are more likely to be similar to the parent than varieties from one of our seed mixes, although they may also sometimes bear no clear resemblance due to oca’s octaploid genome.