Top Perennials to Plant in August: A Guide to Choosing Perennials that Will Establish Well in Late Summer for a Robust Display Next Year

As we transition into the later part of summer, August is the perfect time to plant perennials that will establish themselves well and bring vibrant color to your garden next year. With warm soil and plenty of daylight left, these perennials will have the opportunity to develop strong root systems before the winter chill sets in. Here are our top picks for perennials, including the striking Perennial Hibiscus, that you should consider planting this month.

1. Perennial Hibiscus (Rose Mallow)

If you’re looking to add a bold, tropical flair to your garden, Perennial Hibiscus is the way to go. Known for its enormous, eye-catching blooms that can reach up to 12 inches across, this hardy perennial thrives in sunny spots with well-moisturized soil. Varieties like ‘Lord Baltimore’ and ‘Cherry Cheesecake’ will bring a vibrant splash of color to your garden. Planting in August ensures that these stunners will establish strong roots and burst into bloom next summer.

2. Echinacea (Coneflower)

Echinacea is a garden favorite, celebrated for its daisy-like flowers and its ability to attract pollinators. By planting Echinacea in August, you give it the time needed to establish a strong root system, ensuring a resilient plant that will bring bright blooms year after year. Consider varieties such as ‘Magnus’ or ‘PowWow Wild Berry’ for added color.

3. Rudbeckia (Black-Eyed Susan)

Rudbeckia is well-known for its bright yellow petals and contrasting dark centers, which add cheerful brightness to any garden. These hardy perennials are drought-tolerant once established and are perfect for low-maintenance gardens. Planting in August gives Rudbeckia the time it needs to settle in and return even more robust in the spring.

4. Sedum (Stonecrop)

Sedum is a tough, low-maintenance perennial that brings texture and interest to your garden beds. Its fleshy leaves store water, making it a great choice for hot, dry spots. Varieties like ‘Autumn Joy’ offer late-season color and are perfect for August planting, allowing them to establish quickly in warm soil.

5. Heuchera (Coral Bells)

Heuchera is prized for its stunning foliage, available in shades ranging from deep burgundy to bright lime green. August is an excellent time to plant Heuchera, giving the plant a chance to establish a strong root system before winter. These perennials are perfect for adding color and texture to shady areas in your garden.

6. Hosta

Hostas are a top choice for filling shady areas with lush, leafy growth. Known for their resilience, Hostas thrive in less sunny spots and can create a striking display of greenery. Planting in August gives Hostas the opportunity to establish well before winter, ensuring a full and vibrant display next year.

7. Aster

Asters are late bloomers that bring a burst of color to your garden just as other perennials begin to wind down. Planting Asters in August allows them to establish roots before winter, so you can enjoy their vibrant purple, pink, or white flowers next fall. They’re also excellent for attracting butterflies to your garden.

8. Phlox

Phlox is known for its sweet fragrance and clusters of colorful blooms. August planting gives Phlox ample time to establish a strong root system, ensuring a full and bushy display of flowers next year. Choose mildew-resistant varieties like ‘David’ for best results.

9. Coreopsis

Coreopsis is an excellent choice for adding long-lasting color to your garden. These cheerful flowers are easy to grow and are known for their extended blooming season. Planting in August ensures they have a strong start, allowing them to flourish in the coming seasons.

10. Daylilies

Daylilies are beloved for their ability to bloom continuously throughout the summer. Although they can be planted at almost any time during the growing season, August is particularly beneficial as it allows Daylilies to establish before winter, leading to a more abundant display next summer.

11. Salvia

Salvia, with its vibrant spikes of flowers, is a must-have for attracting hummingbirds and butterflies. Planting in August gives Salvia the chance to establish itself before winter, ensuring a reliable and beautiful display of blooms next year.

Tips for August Planting

• Watering: Ensure consistent moisture for newly planted perennials to help them establish strong roots. Deep watering during dry spells is crucial.
• Mulching: Applying a layer of mulch will help retain moisture and keep roots cool during the warm days of late summer.
• Fertilizing: Use a slow-release fertilizer to provide the nutrients necessary for healthy root development.

By planting these perennials in August, you’re laying the foundation for a vibrant, colorful garden that will bring joy and beauty for years to come. Happy planting from the team at Bru-Mar Gardens!