If you’re wondering what flowers to plant in September then you’ll be glad to know there are still plenty of flowers you can grow in autumn. This list of fall flowers contains flowers that bloom in September, annual flowers to plant in fall and winter, and also fall-blooming perennial flowers.
With these flowers, you can have a beautiful garden all year long by planting fast-growing fall flowers that will keep blooming until the first winter frost.
What Flowers To Plant in September
Mums – Chrysanthemum
Mums – Chrysanthemum (Buy Online) are a hardy fall flower that blooms in September and October. Mums come in almost every color in the rainbow, and they are one of the best fall flowers for pots. Mums are a perennial flower that you can plant in zones 5-9, and they prefer to grow in full sun.
Peonies
Peonies (Buy Online) are a beautiful perennial flower that you can plant in the fall for them to bloom next spring. You can get peonies that have blooms that cover the whole spectrum from white, yellow, pink, red, and purple. They are a perennial flower that will grow in zones 3 to 8, and they should be planted in full sun.
Pansies
Pansies (Buy Online) are dainty fall annuals that look stunning along walkways, or in window boxes, and you can even grow them in flower pots. They are also an edible flower that you can use in salads, or as a decorative accent on cakes. In most areas, Pansies will keep blooming until the first frost, but in mild climates, they can last all winter.
Asters
Asters (Buy Online) are beautiful fall-blooming perennials that are one of the best flowers for a fall garden. They also look great when planted with chrysanthemums and other autumn flowers. Asters will grow quickly in their first year and bloom in about two months, so it’s a good idea to plant them in early September. However, they are a perennial flower that can be planted in Zones 3 to 8, so they will keep producing flowers for many years to come.
Daffodils
Daffodils (Buy Bulbs Online) can be planted in late September so they can get off to a fast start next spring. They will overwinter in most areas and they can be planted anytime in the fall in zones 3 to 7. Daffodils are also deer resistant, and they have very few pest or disease problems, which makes them an excellent flower for people new to gardening.
English Marigold (Calendula officinalis)
English Marigolds (Buy Online) will put on a display of vibrant fall colors with their deep orange petals. They make excellent flowers for cutting and they look great in fall flower arrangements. English Marigolds will flower quickly in most areas, and they will keep blooming in winter if you live in a warm climate. They also self-seed very easily so don’t be surprised if they pop up again next spring.
Love-In-A-Mist (Nigella damascena)
Love-In-A-Mist (Buy Online) is a unique flower that’s commonly used in dry flower arrangements. You can sow them in the fall, and they will bloom in late spring in most areas. However, if you live in a warmer area they will bloom in early winter as long as they don’t experience freezing temperatures.
Cornflower
Cornflowers (Buy Online) are the quintessential flower that most people think of when they imagine a colorful meadow filled with blooms. They also make an excellent cut flower for use in fall flower arrangements, and they come in a wide range of colors such as red, pink, white, purple, and classic dark blue.
Queen Anne’s lace (Ammi majus)
Queen Anne’s Lace (Buy Online) can be sown in late September, and they will bloom in late spring or early summer. By planting Queen Anne’s lace in fall you’ll give the plant a head start so it can establish a strong root system before the first frost. This will allow the plant to produce more flowers next season than they would if you planted them in spring.
Poppies (Papaver somniferum)
Poppies (Buy Seeds Online) can be sown throughout the autumn, and it’s likely you’ll get some small blooms before winter starts. The seeds that don’t germinate the first year will overwinter in your garden and sprout in early spring once the soil warms up.
Hyacinth
Hyacinth (Buy Bulbs Online) can be planted in late September and they will be one of the first plants to bloom in early spring. Planting Hyacinth in fall is the best way to ensure that you have blooms in early spring, and it beats planting Hyacinth bulbs when the soil is still frozen in late winter. You also won’t have to settle for the classic purple Hyacinth anymore since they now come in a wide range of colors.
Amaryllis
Amaryllis (Buy Bulbs Online) is a fast blooming flower that you can plant in September, and then you can expect to see blooms in October or November. They also make great fall flowers for pots, and you can even easily grow them indoors in decorative containers for the holidays. Just remember the sooner you get amaryllis started the more likely you’ll be to see any flowers before the first winter frost.
California poppy (Eschscholzia californica)
California poppy (Buy Online) will fill your garden with bright orange and yellow flowers just as the fall gets off to a start. They make an excellent addition to borders, and you can sow them throughout your garden to fill in any empty spots. California poppies also readily self-seed, so once you plant them in your garden they’ll come back every year like clockwork.
Cosmos
Cosmos (Buy Seeds Online) are a great fall flower to plant since they bloom very quickly. They also come in many different colors, so they are sure to brighten up your fall garden. Cosmos will bloom in 45 to 50 days, and they will keep blooming until the first frost.
Phlox
Phlox (Buy Seeds Online) is a great flower for borders and they will bloom all season long. They can be planted in early September, and they will start blooming in 70 to 75 days. Phlox is also very cold hardy, which means they will hold their blooms even after the first winter frost.
Morning Glories
Morning Glories (Buy Seeds Online) are a fast-growing vine that will quickly fill up any empty vertical space in your garden. Once the vines get established they will bloom in 60 to 65 days, and they will keep producing new blooms right up until the first frost. Just be aware that morning glory seeds can be hard to germinate, so you’ll want to soak them first to help speed up the germination process.
