Almost all Sedums you can buy or find are perennials. A few (eg Sedum cepaea) are annuals. A number seed themselves so freely ( depending on your weather conditions where you live) that they are better grown as annuals ( ie grown again from seed), or from cuttings because they put so much effort into flowering and seeding that the remaining plant is in poor shape.
You plant red sedum in well drained soil in a sunny location. The roots are not very deep.
Sedum is native to rocky areas in the eastern and east-central United States.
Use a wire carnation ring, available at garden centers.
The amaranth is an annual.
Neither its open
They seem to leave Autumn Joy sedum alone but will eat Xenox sedum.
The biggest predator of sedum is slugs.
Sedum sieboldii was created in 1839.
Sedum ternatum was created in 1803.
Sedum oblanceolatum was created in 1975.
Sedum dendroideum was created in 1828.
Sedum albomarginatum was created in 1975.
Sedum caeruleum was created in 1771.
Sedum sexangulare was created in 1753.
You plant red sedum in well drained soil in a sunny location. The roots are not very deep.
Some people cut it back in early summer so the sedum does not get so high.
Sedum Acre can be pulled back and plant something that is more aggressive where you don't want the sedum.