Perennials for zone 6
These 11,756 perennials grow in USDA zone 6. Zone 6 winters reach -10 to 0°F (-23 to -18°C). Garden centre favorites come first. Find your zone.
- Oakleaf foam flowerTiarella cordifolia 'Oakleaf'Zones 4 to 9 · Part to full shade · 6 to 12"
- Omomuki daylilyHemerocallis 'Omomuki'Zones 3 to 9 · Sun to part shade · 2 to 3 ft
- Orange Balsam thymeThymus 'Orange Balsam'Zones 5 to 8 · Full sun · 6 to 12"
- Orange Fascinator coneflowerEchinacea 'Orange Fascinator'Zones 3 to 8 · Full sun · 2 to 4 ft
- Orange Vanilla Popsicle red-hot pokerKniphofia 'Orange Vanilla Popsicle'Zones 6 to 9 · Sun to part shade · 1 to 3 ft
- Oranges and Lemons blanket flowerGaillardia grandiflora 'Oranges and Lemons'Zones 5 to 9 · Full sun · 1 to 2 ft
- Orkney Cherry crane's-billGeranium 'Orkney Cherry'Zones 5 to 8 · Sun to part shade · 6 to 12"
- Outrageous daylilyHemerocallis 'Outrageous'Zones 3 to 9 · Sun to part shade · 2 ft
- Pandora's Box daylilyHemerocallis 'Pandoras Box'Zones 3 to 9 · Sun to part shade · 1 to 2 ft
- Pawn of Prophecy daylilyHemerocallis 'Pawn of Prophecy'Zones 3 to 8 · Sun to part shade · 2 ft
- Peachy Cheeks red-hot pokerKniphofia 'Peachy Cheeks'Zones 6 to 9 · Sun to part shade · 2 ft
- Peppermint Ice lenten roseHelleborus 'Peppermint Ice'Zones 5 to 8 · Part to full shade · 1 to 2 ft
- Perceptive daylilyHemerocallis 'Perceptive'Zones 3 to 9 · Sun to part shade · 2 to 3 ft
- Perry's Blue Siberian irisIris sibirica 'Perrys Blue'Zones 3 to 8 · Sun to part shade · 2 to 3 ft
- Piccolino coneflowerEchinacea 'Piccolino'Zones 3 to 8 · Sun to part shade · 9 to 12"
- Pink Grapefruit coneflowerEchinacea 'Pink Grapefruit'Zones 4 to 9 · Full sun · 1 to 2 ft
- Pink Lady lenten roseHelleborus hybridus 'Pink Lady'Zones 4 to 9 · Part to full shade · 12 to 18"
- Pink Lavender Appeal daylilyHemerocallis 'Pink Lavender Appeal'Zones 3 to 9 · Sun to part shade · 18"
- Pink Playmate daylilyHemerocallis 'Pink Playmate'Zones 3 to 9 · Sun to part shade · 2 ft
- Pink Pop bill williams mountain giant hyssopAgastache 'Pink Pop'Zones 6 to 9 · Full sun · 12 to 18"
- Pink Puff daylilyHemerocallis 'Pink Puff'Zones 3 to 9 · Sun to part shade · 2 ft
- Pink Super Spider daylilyHemerocallis 'Pink Super Spider'Zones 3 to 9 · Sun to part shade · 3 ft
- Pinwheel tickseedCoreopsis 'Pinwheel'Zones 5 to 9 · Full sun · 2 ft
- Pixie carnationDianthus 'Pixie'Zones 3 to 8 · Sun to part shade · 3 to 12"
- Planet Max daylilyHemerocallis 'Planet Max'Zones 3 to 9 · Sun to part shade · 3 to 4 ft
- Playful Meadow Mama coneflowerEchinacea 'Playful Meadow Mama'Zones 5 to 9 · Full sun · 1 to 2 ft
- Poco Orange red-hot pokerKniphofia 'Poco Orange'Zones 6 to 9 · Full sun · 1 to 2 ft
- Prairie Twilight beardtonguePenstemon 'Prairie Twilight'Zones 4 to 8 · Full sun · 2 ft
- Pretty in Pink daylilyHemerocallis 'Pretty in Pink'Zones 3 to 9 · Sun to part shade · 2 to 3 ft
- Prima Saffron coneflowerEchinacea 'Prima Saffron'Zones 4 to 9 · Full sun · 1 to 2 ft
- Prince of Venice daylilyHemerocallis 'Prince of Venice'Zones 3 to 9 · Sun to part shade · 2 to 3 ft
- Princess Tutu daylilyHemerocallis 'Princess Tutu'Zones 3 to 9 · Sun to part shade · 2 ft
- Professor Van der Wielen florist's spiraeaAstilbe 'Professor Van der Wielen'Zones 4 to 9 · Sun to shade · 3 to 4 ft
- Purple Passage daylilyHemerocallis 'Purple Passage'Zones 3 to 9 · Sun to part shade · 2 ft
- Purple Towers lobeliaLobelia 'Purple Towers'Zones 3 to 8 · Sun to part shade · 3 to 5 ft
- Radiant Greetings daylilyHemerocallis 'Radiant Greetings'Zones 3 to 9 · Sun to part shade · 3 ft
- Radius florist's spiraeaAstilbe 'Radius'Zones 3 to 8 · Sun to shade · 2 ft
- Raspberry Swirl carnationDianthus 'Raspberry Swirl'Zones 5 to 9 · Sun to part shade · 1 to 2 ft
- Raspberry Tart coneflowerEchinacea 'Raspberry Tart'Zones 3 to 8 · Sun to part shade · 2 ft
- Razzmatazz daylilyHemerocallis 'Razzmatazz'Zones 3 to 9 · Sun to part shade · 2 to 3 ft
- Real Charmer shasta daisyLeucanthemum 'Real Charmer'Zones 5 to 9 · Sun to part shade · 18 to 21"
- Red Chiffon tickseedCoreopsis 'Red Chiffon'Zones 4 to 9 · Full sun · 1 to 2 ft
- Red Happiness bill williams mountain giant hyssopAgastache 'Red Happiness'Zones 5 to 9 · Full sun · 2 to 3 ft
- Red Lady lenten roseHelleborus hybridus 'Red Lady'Zones 4 to 9 · Part to full shade · 12 to 18"
- Red Racer lenten roseHelleborus 'Red Racer'Zones 4 to 9 · Part to full shade · 1 to 2 ft
- Red Razzmatazz daylilyHemerocallis 'Red Razzmatazz'Zones 3 to 9 · Sun to part shade · 2 to 3 ft
- Red Sapphire lenten roseHelleborus 'Red Sapphire'Zones 5 to 8 · Part to full shade · 1 to 2 ft
- Red Sun blanket flowerGaillardia grandiflora 'Red Sun'Zones 3 to 9 · Full sun · 1 to 2 ft
- Redshift tickseedCoreopsis 'Redshift'Zones 4 to 9 · Full sun · 2 to 3 ft
- Respighi daylilyHemerocallis 'Respighi'Zones 3 to 9 · Sun to part shade · 2 to 3 ft
- Rocket's Red Glare red-hot pokerKniphofia 'Rockets Red Glare'Zones 5 to 9 · Full sun · 2 to 3 ft
- Romantic Getaway lenten roseHelleborus 'Romantic Getaway'Zones 4 to 9 · Part to full shade · 1 to 2 ft
- Rose daylilyHemerocallis 'Rose'Zones 3 to 9 · Sun to part shade · 2 ft
- Rose Quartz lenten roseHelleborus 'Rose Quartz'Zones 5 to 8 · Part to full shade · 1 to 2 ft
- Rose Queen sageSalvia sylvestris 'Rose Queen'Zones 4 to 8 · Sun to part shade · 2 ft
- Rosish One carnationDianthus 'Rosish One'Zones 4 to 8 · Sun to part shade · 9 to 12"
- Rosy Cheeks carnationDianthus 'Rosy Cheeks'Zones 5 to 9 · Sun to part shade · 1 to 2 ft
- Roy Davidson pulmonariaPulmonaria 'Roy Davidson'Zones 3 to 8 · Sun to shade · 9 to 18"
- Royal Rembrandt cut-leaf kittentailVeronica 'Royal Rembrandt'Zones 4 to 8 · Sun to part shade · 2 ft
- Ruby coneflowerEchinacea 'Ruby'Zones 4 to 9 · Full sun · 1 to 2 ft