Where Does Cosmos Grow Best

Cosmos are tolerant of most soil pH levels, but grow best in neutral to alkaline soils. Cosmos can tolerate warm, dry weather very well. They are even drought-tolerant. Depending on the variety, cosmos can grow anywhere between 18 to 60 inches tall, so plan accordingly.

Does cosmos come back every year?

Cosmos are annuals meaning they do not come back every year. In order to have blooms every year, you will need to resow your seeds the following spring. The only difference, however, is Chocolate cosmos (also known as cosmos atrosanguineus) which is grown from like a dahlia from a tuber.

Do cosmos grow well in pots?

Container Grown Cosmos Cosmos flowers can be successfully grown in containers. Species plants can grow as much as 6 feet (2 m.) tall, so look for dwarf or compact cultivars for containers.