What is the easiest flower to keep alive?
The easiest flowers to grow from seed include zinnias, marigolds, sunflowers, cosmos, and calendula; all annual flowers. Which flowers bloom all summer long? Both perennial and annual flowers offer an extended bloom period. Long-blooming annuals include blanket flower, spider flower, and trailing petunia. Zinnias. Zinnias are among the most cheerful and easy-to-grow flowers that beginners can start indoors from seed. They’re known for their rapid germination process, with zinnia seeds often sprouting within just 5 to 7 days after planting.