Marigolds
The picture of the marigold I posted is called miniature marigold. It falls under the genus tagetes minima. Their height can range from 0.1 to 2.2 meters. These blooms are a vibrant golden-yellow colour. The floral heads tend to range from 4 to 6cm in diameter with a combination of ray and disc florets. The roots are fibrous and they are planted as annuals. To maximize the growth of these flowers, they need soil with good drainage. Some of the species have a range of scents from musky, pungent, to scentless. Their scent is an important trait that can ward off nematodes and insect pests.
In this project, there are several different types of marigolds. The most notable one is the Aztec/Mexican marigold. These marigolds are native to Mexico, hence the name. This flower is part of the genus tagetes erecta. Some of the things that both of these marigolds have in common are their fibrous roots and pungent scents. One unique adaption of marigolds is that they can modify their root length than under drought stress conditions.
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