Looking to enhance your garden's privacy or create a cozy seating area? Tall perennial flowers are the perfect solution, offering beauty while forming a natural floral screen.
Choosing the right plants can be overwhelming given the variety available. Consider your local climate, soil type, color preferences, and the overall design of your garden.
Some of the most stunning perennials, including early daylilies, foxgloves, and hollyhocks, are excellent tall options. I consulted with gardening experts about their top picks for tall perennial flowers.
11 Tall Perennial Flowers for Privacy and Screening
These towering beauties can enhance pool and patio privacy or conceal garden distractions like sheds or pipes. Here are some top selections for your landscape.
1. Perennial Hibiscus
Featuring large, eye-catching blooms from late summer to fall, perennial hibiscus, also known as Rose of Sharon, creates a striking backyard screen. These deciduous plants require minimal care beyond a spring potash feed and fall mulch. They thrive in bright, sheltered locations and are suitable for US hardiness zones 4 to 9.
Garden designer Amber Freda notes, 'For effective screening, select plants that grow quickly, reach heights of 4-6 feet, and possess enough density to block visibility.' Planting in staggered rows maximizes fullness, creating a lush privacy screen. Purchase hibiscus seeds from Walmart.
Feed your perennials with this all-purpose fertilizer to ensure they flourish this season.
2. Goldenrod
Goldenrod, or Solidago, displays clusters of bright yellow flowers on sturdy stems from mid-summer to fall. Thriving in well-drained soil, these sun-loving plants quickly establish a dense screen, reaching heights of 3 to 5 feet in US hardiness zones 3 to 8.
In addition to their vibrant color, it's beneficial to leave spent flowerheads through winter. Horticultural expert Mary Phillips explains that this provides habitat for wildlife while offering late-season nectar for butterflies.
3. Hollyhocks
As quintessential cottage garden favorites, hollyhocks can effectively mask unattractive views, serving as a floral alternative to fences. Available in a broad spectrum of colors, from soft pastels to deep burgundies, they can grow 6-8 feet tall, making them perfect for vertical privacy screens. Find hollyhock seeds at Walmart.
Space plants 18-24 inches apart for optimal growth and air circulation in full sun with well-drained soil.
4. Russian Sage
This hardy, drought-resistant perennial features silvery stems and small violet-blue flowers from July to fall, growing 3-5 feet tall. Ideal for sunny areas, it thrives in US hardiness zones 5 to 8 and can adapt to various soil types.
For a dense, wispy screen, plant in clusters or staggered rows, spacing them about 2 feet apart. Water regularly until established, then reduce frequency for mature plants. Prune back in late winter or early spring for new growth.
5. Joe-Pye Weed
Perfect for a wild garden screen, Joe-Pye Weed, or Eutrochium purpureum, stands 5-7 feet tall with fluffy pink-purple blooms in summer and fall. Best in US hardiness zones 3 to 9, the serrated leaves form star-shaped whorls around the stem.
For a dense effect, space plants 3 feet apart, and grow in full sun to partial shade with consistently moist soil. Remember to deadhead to prevent self-seeding.
6. Daylilies
Known for their vibrant trumpet-shaped flowers, daylilies, or Hemerocallis, thrive in various soils and conditions. They grow best in US hardiness zones 5 to 10 and can form a substantial living screen with their evergreen foliage in milder climates.
These vigorous plants should be divided every 3-5 years to maintain vigor. While deadheading is optional, it can help improve appearance.
7. Bear's Breeches
With their striking appearance, Bear's Breeches, or Acanthus, features spiny flower spikes and glossy leaves, providing an effective barrier for your garden. These plants thrive in sun or partial shade but dislike deep shade and wet soil.
Establish deep roots and take care not to disturb them. Regularly check for slugs that may favor young foliage.
Find Bear's Breeches plants at Walmart.
8. Sneezeweed
Sneezeweed, related to sunflowers, adds vibrant color in late summer with bold blooms in red, orange, and gold. This perennial thrives in US hardiness zone 6 and above, preferring moist soil without becoming waterlogged.
Different varieties have varying heights, with Helenium 'Waltkraut' reaching up to 4 feet. Staking may be necessary for taller varieties. For earlier blooms, consider 'Sahin's Early Flowerer' for continuous color.
Helenium 'Autumn Leaves' seeds are available from Walmart.
9. Meadow Rue
Meadow Rue, or Thalictrum, features delicate blooms that seem to float above its finely cut foliage. This plant can reach up to 8 feet tall and is best suited for US hardiness zones 3 to 7.
With soft shades of yellow, pink, and lilac, it's perfect for natural planting schemes, adding tranquility to gardens. Ideal for moon gardens, this perennial shines in informal settings.
10. Astilbe
Astilbes are essential for creating floral screens, thriving in damp, shady areas. They produce feathery plumes of tiny flowers from early to mid-summer, flourishing best in US hardiness zones 3 and above.
Height varies, with Astilbe rivularis reaching 5 feet and Astilbe chinensis var. davidii growing up to 6 feet. Prune in fall or winter to maintain interest in the garden.
Purchase Astilbe plants at Burpee.
11. Foxtail Lily
Also known as desert candles, Eremurus spp. features tall, fiery flower spikes in shades from white to red. Growing up to 6 feet tall, these plants bloom in June and July.
Ideal for US hardiness zones 6 to 11, they prefer sunny spots with well-draining soil. Staking is essential in windy areas. Consider underplanting with ground covers to hide the foliage as the season progresses.
Once you find the ideal tall perennials for your garden, explore design ideas to use them effectively. Don't forget to check out creative garden screening concepts and avoid common garden privacy mistakes.
