Plant Matchmaker: Pair These Two Fiery Perennials for a Border That Glows Into Fall
This striking perennial pairing works on every level, from the plants' shared growing needs to their glowing late-summer color and contrasting forms.
After weeks of relentless heat and drought, my garden borders are exhausted. But a well-chosen plant pairing can inject new life and keep the momentum going into fall. One of my favorite ways to bridge the late-summer-to-fall gap is to combine black-eyed Susan and red hot poker. Mixing vivid color with two very different flower shapes, these easy-to-grow perennials can bring back some of that lost intensity.
The delightful, daisy-like flowers of black-eyed Susan (Rudbeckia) create a soft, golden mound, while the dazzling spikes of red hot poker (Kniphofia) rise up above the border like blazing torches. Together, they add fullness, height, and contrast without making the planting feel excessive. The combination looks sunny and joyful in August, while transitioning into an autumnal vibe as September arrives.
Several variety pairings can work here, but my top picks for this combo are Rudbeckia ‘American Gold Rush’, available to order online from Garden Goods Direct, and Pyromania ‘Rocket’s Red Glare’ red hot poker, available from Plant Addicts. The kniphofia’s tall flower spikes open from warm red buds into creamy peach blooms, creating a fiery contrast with the rudbeckia’s golden flowers.
And it’s not all about looks – this is also a pairing that works practically. Both plants thrive in full sun and well-drained soil, and their flowering periods overlap to help extend the season from midsummer through mid-fall.
Why Black-Eyed Susan and Red Hot Poker Look So Good Together
Linked by their warmth of coloring, black-eyed Susan and red hot poker provide clear contrast without competing for attention. The golden yellow of the rudbeckia echoes the red, orange, and yellow tones of the red hot poker, creating a warm palette that carries the border across the seasons. The dark centers of the black-eyed Susan flowers are important, too, breaking up all that brightness and adding depth to the look.
For the strongest effect, use Rudbeckia as the lower, fuller layer, with Kniphofia positioned behind it or allowed to rise at intervals through the drift. Structurally, each plant plays its part, as black-eyed Susan gives volume and continuity, while the spikes of red hot poker give vertical accents that draw the eye upward.
Choose a repeat-flowering red hot poker to ensure fresh flower spikes continue appearing well beyond midsummer. As well as Pyromania Rocket’s Red Glare red hot poker, other good options include Pyromania Backdraft, Orange Vanilla Popsicle, and Orange Blaze, available at Plant Addicts.
Alternative black-eyed Susans that work in this pairing include the ever-popular 'Goldsturm', available at Walmart, as well as 'Early Bird Gold', and ‘Little Goldstar’
Avoid planting this pairing in a strict alternating row, which can look fussy and contrived. Loose groupings and irregular repetition will create a more natural-looking layered garden design.
How to Grow Them Together
For this combination to perform at its best, you need to plant them in a full-sun location in well-draining soil that has a little moisture retention. The plants’ hardiness ranges also overlap in USDA zones 6–9, and neither requires radically different care that could make the partnership difficult to maintain.
Water both plants moderately while they establish their roots; once settled, they have reasonable drought tolerance and should not need too much watering – though they will flower better if not allowed to stay dry for prolonged periods. Rudbeckia is more forgiving of consistently moist soil, while kniphofia is particularly sensitive to waterlogged ground.
For a small border, position one red hot poker plant slightly behind or off-center from a loose triangle of three rudbeckias, leaving enough room for each plant to reach its mature spread.
In a larger bed, repeat the grouping two or three times along the border, varying the spacing and position slightly.
Deadhead both plants regularly to encourage further flowers. It’s a good idea to leave some Rudbeckia seed heads standing toward the end of fall. They provide texture through winter and offer seeds for visiting birds.
