Marjoram plants are available in garden centers or supermarkets from springtime on. Repot the marjoram into a bigger pot to give it more space to grow (the pots you can buy them in are usually too small). If there is more than one plant, plant them separately into several pots, which also allows you to experiment with different locations.
Amaranth is mainly available in two different versions: as whole grain or as puffed/popped amaranth. The amaranth grains usually cost less than half than the puffed ones, and it is insanely easy to pop the grains yourself at home in just a few minutes.
Here’s how it works: