Fall Flowers: Our Favorite Perennials and Annuals for Adding Color in the Autumn Garden

While I try to live in the moment as much as possible, it’s harder to be mindful when it c0mes to garden design. After all, planning ahead for the next season is often the key to a beautiful four-season garden. As summer chugs along, I’m already thinking about what flowers will be blooming in the months ahead and what will be supportive to our pollinator friends.

Here are some favorite late bloomers I’m considering for my and my clients’ gardens this fall:

Chrysanthemum

I know what you’re thinking: those supermarket flowers? But take a closer look at the more unique varieties that have hit the market. I totally swoon over the spider, quilled, and pom pom ones, and you might, too. These long-lasting cut flowers boasts autumnal colors and are superbly sturdy, making them a great addition to a cut flower garden. Also, because they contain pyrethrum, a natural insect repellent, consider planting some on the edges of a vegetable bed to ward off nibbly invaders. Hardy in USDA Zones 3-9. Best planted in full sun and soil that drains well. (See Gardening 101: Chrysanthemums.)

Aster

Come late summer, when many flowers start fading, asters are here for the bees, butterflies, and other pollinator pals. Depending on the variety, some asters grow to around a foot tall, while others tower to 6-plus feet; they can range in color from purple to blue and white. Plant in a partly sunny to full sun spot with soil that drains well. Potentially deer-resistant as well. I’m fond of Aster chilensis as it is a vigorous California native perennial with pale lilac flowers and is a great butterfly nectar plant. Hardy in USDA Zones 3-8.

Black-Eyed Susan

A fall favorite, Rudbeckia hirta is also beloved by pollinators and looks fantastic when planted with ornamental grasses for a meadow effect. Growing from 1 to 3 feet, they make great cut flowers and thrive in a sunny spot. Make sure to deadhead the flowers to promote blooming, and then at the end of the season leave the seed heads for the birds to snack on. Favorite hybrids include ‘Prairie Sun’, ‘Sonora’ and ‘Autumn Colors’. Hardy in USDA Zones 3-9. See also Gardening 101: Black-Eyed Susans.)

Anise Hyssop

Contrary to what might be assumed, anise hyssop (Agastache foeniculum) plant is not anise but is instead in the mint family and the leaves exude a spicy scent similar to licorice. Adored by pollinators and detested by deer, this perennial produces long lasting purplish blooms that can be used in flower arrangements. The vertical habit pairs well with cascading ornamental grasses and other fall-blooming favorites. A sunny spot is best. USDA Zones 4-8.(See also Gardening 101: Hyssop.)

Japanese Anemone