How to grow Giant Hogweed
Heracleum mantegazzianum
Growing Giant Hogweed from seed
Seeds may lay dormant in soil for up to 15 years before germinating.
How long does Giant Hogweed take to grow?
These estimates for how long Giant Hogweed 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 Giant Hogweed to germinate?
-
days
Average days
| Min days
| Max days (0)
- Days to Transplant How long until I can plant out Giant Hogweed?
-
+ days
Average days
| Min days
| Max days (0)
- Days to Maturity How long until Giant Hogweed is ready for harvest / bloom?
-
+ days
Average days
| Min days
| Max days (0)
- Total Growing Days How long does it take to grow Giant Hogweed?
- = days
Footnotes