7 Underrated Perennials to Plant in October – For The Gorgeous Fall Color You Never Knew You Were Missing
For many, fall flowers usually mean mums or asters – but there are other blooms that are equally stunning, and you can plant all these fabulous flowering perennials this month
Walk down any garden path this month, and you’ll likely meet the usual suspects. Tightly packed potted chrysanthemums and cheerful asters dominate porch steps and garden beds, and they represent the classic choice for fall color. Yet, for all their prolific hues, mums often act as short-lived annuals that tire quickly after the first hard freeze, leaving bare gaps right when late fall beds and borders need a lift.
Instead of settling for a quick fix, why not add something unexpectedly gorgeous that your neighbors can admire with fascination? These choice perennial plants provide fall color every year – and this month is both a great time to plant them and to enjoy their uplifting blooms. It might sound too good to be true, but these perennial treasures return year after year with breathtaking late-season brilliance.
Expanding your horizons reveals a wealth of underrated perennial stars, from delicate, dancing flower wands to clouds of nectar-rich blooms. By slipping these unsung hero perennials into your borders now, you aren't just saving late-season borders from fading away. You are actively investing in a richer, low-maintenance garden story that bursts into life every October.
Flowering Perennials for October
The cooler air temperatures and still-warm soil are ideal for establishing these fall perennial plants before winter. While it may feel chilly in the air, the soil remains warm from months of summer sun, and is highly receptive to healthy plantings. This gentle ground warmth creates an excellent foundation for root development, allowing newly planted perennials to root deep without the threat of late summer heat.
Planting your flowering perennials in fall is all about timing. As long as your ground remains workable and you have 3-4 weeks before the first winter frost is anticipated in your area, the plant’s roots should settle in happily. Your growing or hardiness zone will determine how fast you move in October. In cooler northern regions (zones 3-6), you should aim to get plants into the ground early in the month, so root systems adapt before soil temperatures plummet. In the south (zones 7-10), growers have a longer runway, and warm soil conditions allow easy planting well into late fall.
Late-season soil is often depleted or compacted after busy summer growth. Take a moment to enrich your planting holes with rich organic matter to give young root systems a head start. Once your new perennials are tucked into place, apply a generous 2-3-inch (5-8 cm) blanket of shredded bark or leaf mulch. Organic favorite Back to the Roots Organic Premium Mulch, available from Amazon, will help maintain ground conditions and prevent winter frost heaving.
Finally, make sure you water your newly planted perennials regularly until the ground freezes. Deep, regular watering is the secret to winter survival for any late-season additions. That way, these unexpectedly lovely flowering perennials will add color and movement through late fall, and continue their fall shows year after year.
1. Joe Pye Weed
If you need a tall perennial to add texture, balance and beauty at the back of your fall borders, Joe Pye weed (Eutrochium purpureum) is a champion. Rising up to 6-8 feet (1.8-2.4m) tall on sturdy stems, this plant forms massive domed heads of dusty-rose or mauve flowers that glow in late afternoon sunlight. It’s also a lovely late-season refueling station for monarch butterflies and bees when other nectar sources are scarce. If you are looking for a stunning compact native that can add joy to small spaces, go for Little Joe Joe Pye Weed Plants from Plant Addicts.
Hardy in USDA zones 4-9, Joe Pye weed thrives in full sun to partial shade and craves soil that stays moist. It is naturally tailored for rain gardens, pond edges, or low-lying garden spots. Key varieties like Baby Joe offer compact choices for smaller yards without sacrificing bloom impact. Just keep soil consistently damp while the plant establishes. It looks amazing paired with golden ornamental grasses or towering black-eyed Susans.
2. Goldenrod
Goldenrod (Solidago spp.) has suffered from bad publicity for decades, due to widespread confusion with ragweed. But despite fears, this native beauty will not trigger fall allergies, so don’t be afraid of its joyful blooms. Capable of flowering all the way to November, goldenrod produces feather-like sprays of honey-gold flowers that bring electric light to fading borders. Choose Green Promise Farms Fireworks Goldenrod Plants, available from Walmart, for an award-winning bargain that will establish quickly to service this season's late-visiting pollinators. Its heavy, sticky pollen is carried by beneficial insects rather than the wind.
Extremely hardy in zones 2-8, goldenrod is virtually indestructible once established. It handles full sun, average-to-poor soil, and drought conditions with ease. Modern cultivars stay neatly behaved: look for Fireworks for golden explosions, or Golden Fleece for low, edging groundcover growth. Just avoid overly rich, nitrogen-heavy soils, which can cause the stems to become floppy. Combine its brilliant yellow plumes with deep purple aster varieties or dark blue salvias for classic contrast.
3. Plumbago
Plumbago (aka blue leadwood) is the ultimate groundcover for fall drama. Blue leadwood (Ceratostigma plumbaginoides) is a gorgeous double hitter for color, with vivacious red or bronze fall foliage as well as lush sapphire flowers. Growing just 8-12 inches (20-30cm) tall, this spreading dwarf shrub carpet produces intense, gentian-blue flowers from late August into November. To bring jewel-like color to gloomy parts of your yard, buy Blue Plumbago Plants from Nature Hills for luminescent blooms in the shade.
Hardy in zones 5-9, plumbago excels in full sun to partial shade, though morning sun with light afternoon shade yields the richest foliage tones. Excellent drainage is essential, as these plants don’t like waterlogged winter soil. Plumbago is especially pretty along garden edges, rockeries, and retaining walls. Don't worry if it emerges late: it often saves its best energy for a dazzling late-fall showing. Pair it with yellow-flowering bulbs or emerging colchicum for a sensational low-growing display.
4. Gaura
For one of the most magical names in this roundup, meet whirling butterflies, more commonly known as gaura. Bringing an airy, magical texture to October borders, Gaura is a joy to grow in late fall. Rising on wand-like stems 2-4 feet (60-120 cm) high, its delicate pink and white blooms dance in breezes until the first frost. It creates an ethereal display that breathes continuous movement into quiet beds. Buy Gaudi Rose Gaura Starter Plants from Amazon for lush sprays of hot pink blooms.
Hardy in zones 5-9, gaura (Oenothera lindheimeri) loves full sun and lean, sharply draining soil. Thanks to a long, deep taproot, it has exceptional heat and drought tolerance once settled. Key varieties like Siskiyou Pink bloom for months on end. Just avoid heavy clay soils that retain winter water, and avoid hard spring pruning until new growth shows. Interplant this beauty with ornamental grasses like Pennisetum or dark-leaved heuchera for effortless elegance.
5. Toad Lily
When a lot of other flowering stalwarts are finally fading in shade gardens, the toad lily (Tricyrtis hirta) adds breathtaking elegance. From September to November, its arching stems bear intricate, star-shaped, orchid-like flowers, heavily speckled in shades of amethyst, magenta, and creamy white. Growing 2-3 feet (60-90 cm) tall, these exotic flowers reward close inspection, making them a must-have for pathway edges and courtyard borders. You can buy Emerald Goddess Garden Store Toad Lily Live Plants from Amazon if you hurry for unique color in the gloom.
Hardy in zones 4-8, toad lilies require partial to full shade and rich, organic soil that remains consistently moist but drains well. Standout varieties include Miyazaki for cascading speckled blooms or Empress for larger individual flowers. Top-dress with rich leaf mold or compost each year, to mimic their native habitat. Most shady flowers bloom in spring, so this is a memorable perennial for fall color in shade gardens. Plant them along edges, where their delicate blooms won’t be missed.
6. Hesperantha
Hesperantha (formerly Schizostylis) is unmissable, yet often gets overlooked in fall flower roundups. This vivacious South African native pushes up gladiolus-like spikes of bowl-shaped flowers in saturated shades of scarlet, crimson, and salmon pink. Blooming through October and November, it brings an astonishing flush of tropical color right when frost threatens. For satisfying salmon pink blooms ready for late season planting, choose Sunrise Hesperantha Starter Plants from Amazon.
Hardy in zones 7-9 (and easily overwintered in zone 6 with mulch), Hesperantha coccinea reaches 18-24 inches (45–60 cm) tall and multiplies into lush clumps. It just demands full sun and rich soil during the growing season. Popular varieties like hot red Major or Mrs. Hegarty'(satin pink) make outstanding, long-lasting cut flowers. Pair this sassy late season bloomer with silver foliage like stachys or blue-toned ornamental grasses for dramatic color pop.
7. Japanese Anemone
Some of you may already be familiar with the delights of this elegant beauty, especially if you have shady spaces that need a bit of sparkle. Japanese anemones (Anemone × hybrida) bring effortless grace to late-season borders. Held on slender 3-4-foot (90-120 cm) stems above lush grape-like foliage, their single or double flowers sway gently from August through November. The gold central stamens provide a stunning focal point to these ethereal flowers. For the ultimate dancing bright white blooms, buy Whirlwind Japanese Anemone Plants from Plant Addicts.
Hardy in zones 4-8, they flourish in partial shade to morning sun in rich, moist, well-draining soil. Cultivars like crisp white Honorine Jobert (pictured) or dark pink September Charm are famous for long bloom windows. Be patient after planting: they grow modestly in their first year, but spread happily once settled. Mulch well in winter to protect young crowns, and try grouping with toad lilies, autumn ferns, and hellebores for a multi-season shade border.
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