Top 15+ Flowers That Grow Easily From Seed—It’s Not Too Late to Plant!
3) Cosmos

These ethereal flowers are lovely in mixed borders or as part of a cutting garden. They come in every shade from purest white to hot pink.
Plant the seeds when all danger of frost has passed.
5) Love in a Mist

If nothing else, you need to plant these flowers for their irresistible name! The delicate blue blooms attract tons of pollinators.
Plant the seeds when the soil temperatures warm up to the 60s, which is usually in late spring to early summer when it’s safe to put out tomato or pepper seedlings.
6) Ammi

Ammi is a tall, graceful annual that looks smashing in cut flower arrangements. Its wide, flat umbel-shaped flowers attract tons of pollinators. It also self-sows easily, so you may never need to plant them again, once you have a good crop.
Plant the seeds as soon as the soil can be worked. Because they’re not the longest-lasting flowers, succession plant seeds a few weeks apart for longest harvest time.
7) Morning Glory

Another vining flower is morning glory, which twines gracefully up a trellis or fence line. Deadhead them if you don't want them to reseed next year because some types can become quite pervasive in the garden if left to produce seeds.
Let the ground warm up to the mid-60s before you sow these seeds.
9) Moss Rose

Also known as portulaca, this low-growing plant boasts brilliantly-colored blooms of red, white, yellow, and hot pink along its succulent stems.
Sow seeds after the last expected frost date.