Physostegia virginiana (Obedient plant, False dragonhead)

Physostegia virginiana Photo/Illustration: Jennifer Benner

(Based on 1 user review)

Rate this plant

Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11
Botanical Name: Physostegia virginiana fy-so-STEE-jhah ver-jin-ee-AY-nah Common Name: Obedient plant, False dragonhead Synonyms: P. speciosa Genus: Physostegia
Obedient plant is a clump-forming native perennial that grows aggressively. From midsummer to early fall, spikes of purple or pink (and sometimes white) flowers rise above sharply toothed leaves to four feet high.
Noteworthy characteristics: This late bloomer mixes well with asters, grasses, and goldenrods. May need restraint. Good cut flower.
Care: Provide full sun to part shade and medium moisture. Plants may need staking.
Propagation: Sow seed in a cold frame in autumn. Divide in winter or early spring before new growth commences.
Problems: Rust and slugs can sometimes be a problem.
Height 3 ft. to 6 ft.
Spread 1 ft. to 3 ft.
Growth Habit Spreads
Growth Pace Fast Grower;Invasive/Aggressive Grower
Light Full Sun to Part Shade
Moisture Medium Moisture
Maintenance Moderate
Characteristics Attracts Hummingbirds; Showy Flowers
Bloom Time Fall; Summer
Flower Color Pink Flower; Purple/ Lavender Flower; White Flower
Uses Beds and Borders, Cut Flower
Style Cottage Garden, Meadow Garden
Seasonal Interest Summer Interest, Fall Interest
Type Perennials

Plants you might also like

Solidago nemoralis Solidago nemoralis
(Goldenrod, Gray goldenrod)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This is one of the smallest species of goldenrod, topping out at only 4 to 6 inches high in poor soils, and 2 feet high in fertile soils. It is considered a garden-worthy species, with gray-green leaves that form clumps and languid, one-sided yellow plumes. It is tolerant of both sandy and clay soils.

Lobelia cardinalis Lobelia cardinalis
(Cardinal flower)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Cardinal flower has reddish purple stems and lance-shaped, often glossy, bright green leaves tinged with bronze. Bold red spikes of tubular two-lipped flowers with reddish purple bracts appear in summer and early autumn.

Phlox subulata Phlox subulata
(Moss phlox)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Moss phlox is a dense ground cover blanketed with notch-petaled flowers in April and May. Blooms can be muddy hot pink, bright rose, and magenta, while other cultivars include white, soft lavender-blue, clear pale pink to deep pink, clear scarlet, and lavender, some with a darker or lighter eye. Evergreen foliage is narrow, short, and stiff. Darker-flowered forms have dark-green leaves or red-tinged leaves that darken to burgundy in winter.

Asarum canadense Asarum canadense
(Wild ginger, Canadian wild ginger)
Be the first to rate this plant
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant produces beautiful, 2- to 4-inch, glossy green heart-shaped leaves. You'll find interesting, mauve-purple flowers hidden under its foliage.

Echinacea purpurea Echinacea purpurea
(Purple coneflower)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Because of its carefree performance, this native meadow perennial with daisy-like flowers appropriately inhabits the gardens of many. It blooms from midsummer into early autumn, with prominent, copper-orange central cones surrounded by rose-purple, ray petals (to 5 inches across).