15 Plants You Should Start in August for Stunning Fall Color

August might feel like the peak of summer, but savvy gardeners know it’s the perfect time to plan for autumn’s spectacular show. While many gardeners are winding down their planting efforts, this late-summer month offers a golden opportunity to establish plants that will reward you with breathtaking fall displays. From vibrant foliage to colorful blooms that thrive in cooler temperatures, these 15 plants will transform your garden into an autumn masterpiece.

Why August Planting Works for Fall Color

August planting offers several advantages for fall displays. The soil is still warm, encouraging rapid root establishment, while the gradually shortening days signal many plants to begin their autumn transformations. Cool-season plants particularly benefit from this timing, as they can establish themselves before the stress of summer heat passes and can focus their energy on producing the stunning colors that make fall gardens so memorable.

1. Japanese Maple (Acer palmatum)

Japanese maples are the crown jewels of fall foliage, and August is an excellent time to plant container-grown specimens. These elegant trees offer an incredible range of autumn colors, from brilliant scarlet and orange to deep burgundy and golden yellow. Plant them in partially shaded locations with well-draining soil, and they’ll reward you with decades of spectacular fall displays. The key is choosing varieties suited to your climate zone and providing consistent moisture during establishment.

2. Ornamental Kale and Cabbage (Brassica oleracea)

These cool-weather champions are perfect for adding immediate fall interest to gardens and containers. Unlike their edible cousins, ornamental varieties are bred specifically for their stunning foliage in shades of purple, pink, white, and green. The colors intensify as temperatures drop, creating living bouquets that last well into winter. Plant them in full sun to partial shade, and they’ll provide continuous color when most flowers are fading.

3. Chrysanthemums (Chrysanthemum morifolium)

No fall garden is complete without the classic beauty of chrysanthemums. August is the ideal time to plant mums, allowing them to establish strong root systems before their spectacular autumn bloom. Available in countless colors and forms, from daisy-like singles to pompom doubles, mums offer versatility for any garden design. Choose hardy perennial varieties for long-term garden additions, or treat them as colorful annuals for seasonal displays.

4. Asters (Symphyotrichum species)

Native asters are late-season superstars that burst into bloom just as summer flowers are fading. These pollinator magnets produce clouds of small, daisy-like flowers in shades of purple, pink, blue, and white. August planting gives them time to establish before their fall flowering season. They’re incredibly low-maintenance once established and provide crucial late-season nectar for butterflies and bees preparing for winter.

5. Pansies (Viola × wittrockiana)

These cheerful flowers thrive in cool weather and actually prefer the mild temperatures of fall to the heat of summer. August-planted pansies will bloom continuously through fall and often into winter in milder climates. Their “faces” come in virtually every color imaginable, and they’re perfect for containers, borders, and mass plantings. The secret to success is providing them with rich, moist soil and regular feeding.

6. Burning Bush (Euonymus alatus)

Few shrubs can match the spectacular scarlet-red fall color of burning bush. While it takes time to establish, August planting allows the root system to develop before the plant puts energy into its famous fall display. This adaptable shrub tolerates various soil conditions and provides reliable autumn color year after year. Consider dwarf varieties for smaller spaces, and be aware that it can be invasive in some regions.

7. Sedum (Hylotelephium spectabile)

Also known as autumn joy sedum, these succulent perennials are perfect for adding late-season interest with both foliage and flowers. Their thick, blue-green leaves provide structural interest throughout the growing season, while their flat-topped flower clusters transition from green to pink to rust-red as fall progresses. They’re incredibly drought-tolerant once established and attract beneficial insects throughout their extended blooming period.

8. Coleus (Plectranthus scutellarioides)

Modern coleus varieties offer incredible foliage colors that intensify in the cooler temperatures of fall. From deep burgundy and bright lime green to intricate patterns of pink, purple, and gold, these tender perennials (treated as annuals in most climates) provide instant color impact. August planting allows them to establish before their peak color season, and they’ll continue looking spectacular until the first hard frost.

9. Violas (Viola cornuta)

Smaller cousins of pansies, violas are incredibly cold-hardy and will bloom prolifically through fall and winter in many climates. Their delicate flowers come in solid colors and charming bicolors, and they have a tendency to self-seed, creating natural-looking drifts over time. They’re perfect for edging, containers, and naturalizing in woodland gardens.

10. Celosia (Celosia argentea)

These dramatic annuals produce vibrant flower heads in shades of red, orange, yellow, and pink that look like flames or velvet plumes. August planting ensures strong plants that will bloom through fall until hard frost. Celosia actually prefers the cooler temperatures of autumn to summer’s heat, making them perfect for extending the flowering season when many annuals are struggling.

11. Ornamental Peppers (Capsicum annuum)

These compact plants produce an abundance of colorful fruits that ripen into brilliant shades of red, orange, yellow, and purple as fall progresses. The peppers are edible but extremely hot, so they’re grown primarily for ornamental value. Plant them in full sun, and they’ll provide color interest from late summer through the first frost, often looking their best in October and November.

12. Coral Bells (Heuchera species)

Modern coral bells varieties offer an incredible array of foliage colors that often intensify in cooler weather. From burgundy and bronze to lime green and silver, these versatile perennials provide year-round interest with their colorful leaves and delicate flower spikes. August planting allows them to establish before winter, and many varieties develop enhanced coloration as temperatures drop.

13. Flowering Cabbage (Brassica oleracea)

Similar to ornamental kale but with smoother leaves, flowering cabbage creates rosettes of color that intensify as temperatures cool. The centers develop rich purples, pinks, and creams surrounded by green outer leaves. They’re excellent for formal plantings, containers, and creating bold color statements in fall gardens.

14. Sweet Alyssum (Lobularia maritima)

This delicate annual produces clouds of tiny, fragrant flowers that bloom continuously in cool weather. While often grown as a summer annual, sweet alyssum actually prefers fall’s milder temperatures and will bloom until hard frost. August planting ensures established plants for peak fall performance, and the flowers attract beneficial insects when other nectar sources are scarce.

15. Witch Hazel (Hamamelis species)

While witch hazel is famous for its late winter/early spring blooms, many varieties also provide spectacular fall foliage color. August is an excellent time to plant these understory shrubs, allowing them to establish before showcasing their golden-yellow to orange-red autumn display. They’re perfect for woodland gardens and provide multi-season interest with their unique flowers and fall color.

Planting Tips for August Success

Success with August planting requires attention to several key factors. Water newly planted specimens regularly, as August heat can stress establishing plants. Apply a layer of mulch to conserve moisture and moderate soil temperatures. Most importantly, continue watering through fall until the ground freezes, as plants need consistent moisture to develop strong root systems.

Choose plants appropriate for your hardiness zone, and consider microclimates in your garden. Areas that receive morning sun but afternoon shade can help plants transition more easily from summer heat to fall coolness. Container plantings offer flexibility, allowing you to move plants to optimal locations as conditions change.

Creating Stunning Combinations

The secret to spectacular fall displays lies in combining plants with complementary colors and textures. Pair the fine texture of asters with the bold foliage of ornamental kale, or combine the vertical spikes of celosia with the mounding form of chrysanthemums. Consider bloom timing as well – early fall bloomers like sedum can bridge the gap between summer flowers and late-season asters.

Don’t forget about foliage plants, which often provide the most reliable fall color. Japanese maples, coral bells, and coleus offer consistent color that doesn’t depend on flowering, ensuring your garden looks spectacular throughout the autumn season.

Extending the Season

With careful plant selection and timing, your August efforts can provide color well into winter. Hardy plants like ornamental kale, pansies, and violas often survive light frosts and continue providing color after tender plants have succumbed to cold. In milder climates, some of these plants will bloom continuously through winter, providing cheerful color during the darkest months.

August planting for fall color is about more than just extending the growing season – it’s about creating gardens that celebrate autumn’s unique beauty. By choosing the right plants and timing your planting carefully, you can create spectacular displays that rival spring’s famous flower shows. The key is understanding that fall gardening isn’t about holding onto summer, but embracing the unique opportunities that cooler weather provides for different types of beauty in the garden.