Do petunia seeds need to be refrigerated?
Once you have placed your seeds in an appropriate, airtight container, keep the seeds stored in a cool, dry place.
Temperatures of around 32° to 42°F are usually best for Petunia seeds..
How do I store petunias for next year?
Cut the petunias back to about 2 inches (5 cm.) above the soil and plant them in pots before the first fall frost. Check them over carefully to make sure they aren’t infested with insects. If you find insects, treat the plants before bringing them indoors.
Can I save my dying petunias?
With quick intervention, petunias can often be revived. Cut back foliage on overly dried petunias to within several inches of the soil level. If foliage remains green, the chances of success are good. If leaves have yellowed, become brittle or begun to turn brown, cutting the petunia back may revive it.
Will petunias reseed themselves?
As tender annuals, petunias needs lots of sunshine and adequate moisture, and under the right conditions, they continue blooming all summer long and into the fall. If left to their own devices, they may reseed themselves, but the flowers will be a different color from those of the parent plants.
How long does it take to grow petunias from seeds?
5 to 15 daysWater from below so the seeds are not disturbed. Petunias will germinate in 5 to 15 days at normal indoor house temperatures, sooner if set on a heat mat. For optimum growth, place new sprouts under fluorescent lights for 12 hours daily to simulate late spring light conditions.