How long can perennials live?

Related questions

1. Is biannual every 2 years?
2. Do onions spread?
3. What is something that happens every 2 years?
4. What is a hardy biennial plant?
5. What is a Biennale exhibition?
6. What is 6 months anniversary called?
7. Do perennials live forever?
8. Does onion contain Sulphur?
9. Should I cover my perennials?
10. What does biennial plant mean?

Tags

1. #three
2. #fifteen
3. #lupines
4. #greatly
5. #lifespan
6. #varies
7. #peonies
8. #culture
9. #perennial
10. #species
11. #delphinium
12. #others
13. #called
14. #lived
15. #bloom
16. #short
17. #lifetime
18. #plants
19. #perennials
20. #years