Boost Fall Colors: August Planting Guide

As the summer sun begins to wane, it's time to start thinking about transforming your garden for the upcoming fall season. August is the perfect month to plant flowers that will not only survive but also thrive in the cooler temperatures and shorter days. By choosing the right blooms, you can enjoy a vibrant and colorful garden throughout the fall and even into early winter.

Fall flowers bring a unique charm to your landscape, with their rich hues and hearty nature. They also provide essential nectar for pollinators like bees and butterflies that are still active during this time. So, let's dive into the world of fall flowers and explore what you should plant in August for a stunning autumn garden.

Cool-Season Annuals

Cool-season annuals are flowers that germinate, grow, and bloom in cooler temperatures, making them ideal for fall planting. They typically start blooming within 6 to 8 weeks after planting and continue to flower until the first frost.

These hardy annuals can tolerate light frosts and even snow, providing color and interest to your garden throughout the fall season. Some popular cool-season annuals include:

• Pansies - Available in a wide range of colors, pansies are one of the most popular fall flowers. They can tolerate temperatures as low as 20°F (-7°C) and bloom profusely from fall to spring.
• Violas - Similar to pansies, violas are smaller and have a more delicate appearance. They come in various colors and can withstand light frosts.
• Snapdragons - These tall, elegant flowers add height and drama to your fall garden. They can tolerate temperatures down to 25°F (-4°C) and come in a variety of colors.
• Iberis - Also known as candytuft, Iberis is a low-growing, mounding plant that produces clusters of small, white flowers. It can tolerate temperatures down to 10°F (-12°C) and is an excellent choice for edging or rock gardens.

Pansies and Violas

Pansies and violas are both members of the violet family and share many similarities. They prefer well-drained soil and full sun to partial shade. To encourage bushy growth and more flowers, pinch back the growing tips when the plants are about 6 inches tall. This will help promote branching and prevent the plants from becoming leggy.

When planting pansies and violas, space them about 8 to 12 inches apart, depending on the variety. They can be planted in beds, borders, or containers and make excellent companions for fall-blooming bulbs like tulips and daffodils. To extend their bloom time, deadhead spent flowers and provide consistent moisture throughout the growing season.

Snapdragons and Iberis

Snapdragons and Iberis have different growing requirements but share a love for cooler temperatures. Snapdragons prefer full sun and well-drained soil. They can grow up to 3 feet tall, depending on the variety, and should be spaced about 12 to 18 inches apart. To encourage bushier growth, pinch back the growing tips when the plants are about 6 to 8 inches tall.

Iberis, on the other hand, prefers full sun to partial shade and well-drained soil. It grows to about 12 inches tall and should be spaced about 18 to 24 inches apart. Iberis is drought-tolerant once established and requires little maintenance. Both snapdragons and Iberis can be planted in beds, borders, or rock gardens and make excellent companions for other fall-blooming plants.

Fall-Blooming Perennials

Fall-blooming perennials are a great way to add color and interest to your garden while also providing essential nectar for pollinators. These hardy plants will return year after year, making them a wise investment for your garden. Some popular fall-blooming perennials include:

• Asters - Asters come in a variety of colors and bloom from late summer to early fall. They prefer full sun and well-drained soil and can grow up to 6 feet tall, depending on the variety.
• Black-Eyed Susans - Also known as Rudbeckia, Black-Eyed Susans are drought-tolerant perennials that produce yellow daisy-like flowers with dark centers. They prefer full sun and well-drained soil and can grow up to 3 feet tall.
• Mums - Chrysanthemums, or mums, are one of the most popular fall-blooming perennials. They come in a wide range of colors and bloom from late summer to early fall. Mums prefer full sun and well-drained soil and can grow up to 3 feet tall, depending on the variety.
• Toad Lilies - Toad lilies are late-blooming lilies that produce clusters of fragrant, nodding flowers. They prefer partial shade and well-drained soil and can grow up to 2 feet tall.

Asters and Black-Eyed Susans

Asters and Black-Eyed Susans are both drought-tolerant perennials that prefer full sun and well-drained soil. They can be planted in beds, borders, or meadow gardens and make excellent companions for other fall-blooming plants. To encourage bushier growth and more flowers, divide these plants every 3 to 5 years in early spring or fall.

Asters and Black-Eyed Susans can be planted about 18 to 24 inches apart, depending on the variety. They are both excellent sources of nectar for pollinators like bees and butterflies and can help support local wildlife populations. To extend their bloom time, deadhead spent flowers and provide consistent moisture throughout the growing season.

Mums and Toad Lilies

Mums and toad lilies have different growing requirements but share a love for cooler temperatures. Mums prefer full sun and well-drained soil and can grow up to 3 feet tall, depending on the variety. They should be spaced about 18 to 24 inches apart and can be planted in beds, borders, or containers. To encourage bushier growth and more flowers, pinch back the growing tips when the plants are about 6 inches tall.

Toad lilies, on the other hand, prefer partial shade and well-drained soil. They grow to about 2 feet tall and should be spaced about 18 to 24 inches apart. Toad lilies are excellent for shady gardens and make excellent companions for other shade-loving plants. Both mums and toad lilies can be planted in late summer or early fall and will provide color and interest to your garden throughout the fall season.

By planting a variety of cool-season annuals and fall-blooming perennials in August, you can create a stunning autumn garden that will provide color and interest throughout the fall season. So, get out there and start planting – your fall garden is waiting!