sunflower
yes
6 WEEKS
sunflower
If it was properly fertilized and formed, yes.
If you put a cut stem in the soil, it is unlikely the sunflower would grow. It would need to grow from seed.
No they cant,the Maine thing that make them grow dies.
The root.
sunflower seeds the writ temperature to grow it in is 19 to 25 Celsius because it isn't to hot or too cold.
about 2"
Yes of course they do. Try planting a tomatoe.
Depending on the acidity level of the vinegar, yes.
No. They are from entirely separate bilogical families.