By our calculations*, you should look at sowing Mexican sunflower about 49 days before your last frost date .
How long does Mexican sunflower take to grow?
These estimates for how long Mexican sunflower 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 Mexican sunflower to germinate?
9 days
Average 9 days
| Min 3 days
| Max 27 days (19)
Days to Transplant How long until I can plant out Mexican sunflower?
+ 16 days
Average 16 days
| Min 16 days
| Max 18 days (2)
Days to Maturity How long until Mexican sunflower is ready for harvest / bloom?
+ 39 days
Average 39 days
| Min 39 days
| Max 39 days (1)
Total Growing Days How long does it take to grow Mexican sunflower?