How to grow Yellow Cosmos

Cosmos sulphureus

Seed Saving Yellow cosmos

Seed viability is three years.

How long does Yellow cosmos take to grow?

These estimates for how long Yellow cosmos takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.

Days to Germination How long does it take Yellow cosmos to germinate?
7 days

Average 7 days | Min 3 days | Max 32 days (3)

Days to Transplant How long until I can plant out Yellow cosmos?
+ 35 days

Average 35 days | Min 35 days | Max 35 days (1)

Days to Maturity How long until Yellow cosmos is ready for harvest / bloom?
+ days

Average days | Min days | Max days (0)

Total Growing Days How long does it take to grow Yellow cosmos?
= days

When should I plant Yellow cosmos?

Our when to plant Yellow cosmos estimates are relative to your last frost date.

When to sow The number of days to sow Yellow cosmos before or after your last frost date.
28 days before Last Frost Date

Yellow cosmos Etymology

The botanical epithet is from the Latin sulphureus meaning “sulphur-yellow”

Other names for Yellow cosmos

Cosmos

Cosmos sulphureus Cav.

Misspellings: Cosmos sulphureas

Footnotes


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