I do fall annual planting in late August and early September because it sets the stage for a vibrant and colorful autumn garden. Planting now allows these hardy plants to establish strong roots while the soil is still warm, ensuring they’ll thrive as the weather cools. This time of year is the perfect time to add mums, pansies, and ornamental kale, which bring rich hues and textures that enhance the fall landscape. By planting in late summer and early fall, I extend the beauty of my garden well into the cooler months, creating a seamless transition from summer’s end to the crisp, refreshing days of autumn.

If you’re looking to add some vibrant color to your northern garden for the fall, there are several annuals that you can purchase and plant in August to keep your garden looking lively through the cooler months. Here are some popular choices:

1. Mums (Chrysanthemums)

• Mums are the quintessential fall flower, known for their rich colors and ability to withstand cooler temperatures. They come in a variety of colors, including reds, yellows, oranges, and purples.

2. Pansies and Violas

• Pansies and violas are cool-season favorites that can bloom through fall and even into early winter in some climates. They are available in a wide range of colors and patterns.

3. Ornamental Kale and Cabbage

• Ornamental kale and cabbage are popular for their striking foliage in shades of purple, pink, and white. They thrive in cooler weather and can add texture and color to your garden.

4. Marigolds

• Marigolds are hardy annuals that can continue blooming into the fall. Their bright orange and yellow flowers are perfect for adding warmth to your autumn garden.

5. Celosia

• Celosia, with its unique, feathery blooms in shades of red, orange, and yellow, can add a dramatic touch to fall plantings. It’s fairly cold-tolerant and can last through early fall.

6. Asters

• Asters are often planted as perennials, but annual varieties can provide late-season color with their daisy-like flowers in purple, pink, and white.

7. Snapdragons

• Snapdragons are another cool-season favorite that can be planted in late summer for fall blooms. They come in a variety of colors and can add height and structure to garden beds.

8. Dusty Miller

• Dusty Miller is valued for its silvery-gray foliage, which can provide a striking contrast to other fall annuals. It’s very cold-tolerant and can last through frosty weather.

9. Nasturtiums

• Nasturtiums are known for their vibrant flowers and edible leaves, which can add a pop of color to your fall garden. They perform well in the cooler weather of early fall.

These annuals will help keep your garden looking fresh and colorful as summer fades into fall.