Well it depends on how many times you transplanted. If you start in a solo cup then transplant to a 1gal on day 14 and then transplanted to a 5gal on day 20 then you won't need to top dress. If you started in a 5gal then top dressing on day 20 should be fine.
Well it depends on how many times you transplanted. If you start in a solo cup then transplant to a 1gal on day 14 and then transplanted to a 5gal on day 20 then you won't need to top dress. If you started in a 5gal then top dressing on day 20 should be fine.