Petunia Seeds Aren't Germinating - Knowledgebase Question

Union City, CA
Question by MillenniStar
June 21, 2000
I bought some Rose Wave Petunia seeds from Burpee and I planted the seeds into an outdoor container on May 13th, 2000. It is now June 20th, 2000 and there are no signs of germination. The weather since the original planting date ranged form cool temps in the 60's to heat wave like weather with temps of 80-100+ degrees. How much longer should I wait for germination to take place before I plant more Petunia seeds in the same pot to make up for the old ones?



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Answer from NGA
June 21, 2000

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Petunia seeds can take up to 21 days to germinate, depending upon soil temperature. The usual causes for failure to germinate are seeds planted too deeply (and they run out of energy before the stem reaches the soil surface), or fluctuating soil moisture. Once a seed begins to sprout it needs constant moisture. If it dries out, it will die. You might want to poke around in the soil to see if you can find any signs of life from your seeds. If not, you can sow fresh seeds in the same soil, or start them in a smaller flat in a more protected location. Once they have grown to have several sets of leaves, you can transplant them to the larger container. Hope you have better luck the second time around!

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