Marigolds are a popular choice for gardens and landscapes due to their vibrant colors and ability to repel pests. When it comes to determining whether large marigolds are perennials, it’s important to understand the different types of marigolds and their growth habits.
First, let’s talk about the different types of marigolds. There are three main species of marigolds commonly grown: Tagetes erecta (African marigolds), Tagetes patula (French marigolds), and Tagetes tenuifolia (signet marigolds). Each species has its own characteristics and growth habits.
African marigolds (Tagetes erecta) are the largest of the marigold species, with tall stems and large, showy flowers. They are typically grown as annuals in most regions, meaning they complete their life cycle in one growing season. However, in warmer climates or under favorable conditions, African marigolds may self-seed and come back year after year, giving the appearance of being a perennial.
French marigolds (Tagetes patula) are smaller in size compared to African marigolds, but they offer a wide range of colors and flower forms. French marigolds are also generally grown as annuals, but like African marigolds, they may self-seed and return in subsequent years if conditions are favorable.
Signet marigolds (Tagetes tenuifolia) are the smallest of the marigold species, with delicate foliage and small, dainty flowers. They are often grown as annuals and are not typically known to be perennial. However, they may also self-seed and come back in the following year if conditions are suitable.
It’s worth noting that marigolds are known for their ability to produce abundant seeds, which can lead to self-seeding and the appearance of perennial growth. If you allow your marigold plants to go to seed, you may find new seedlings popping up in the same area the following year. This can give the impression of marigolds being perennial, even though they are technically reproducing from seed.
In my personal experience, I have grown marigolds in my garden for several years. While I primarily grow them as annuals, I have observed some self-seeding and the return of marigold plants in subsequent years. However, the self-seeding is not consistent, and some years I have had to replant marigolds to maintain their presence in my garden.
To summarize, although large marigolds are typically grown as annuals, some varieties may self-seed and appear to be perennial. However, their perennial-like growth is due to the seeds germinating and new plants emerging, rather than the original plants coming back year after year. Therefore, it is more accurate to consider marigolds as annuals with potential for self-seeding and occasional “perennial-like” behavior.
