How To Take Care Of Zinnia Flowers. Give an initial feeding when seedlings are about 4 inches tall using a 5-10-5 water-soluble formula. Water the pots whenever the first inch 25 cm or so of soil has dried out.
In this video we will compare Zinnias that have been pinched to zinnias that were allowed to grow normally. Keep in mind however that seeds saved from hybrid plants may not develop true to the parent plant. So far I am really happy with the results of pi.
Make sure the container has drainage holes though so you dont get standing water or soggy roots.
It should take about one to three weeks to germinate Zinnia at a temperature of 20 to 27 degrees Celsius 68 to 80F. Remove seeds by lightly crushing the dried seed head. Dilute the fertilizer to 14 strength or 14 teaspoon per 4 gallons of water following all product instructions. It should take about one to three weeks to germinate Zinnia at a temperature of 20 to 27 degrees Celsius 68 to 80F.