PlantsPhysostegia→Obedient Plant (Physostegia virginiana)

Common names:
Give a thumbs up Obedient Plant
Give a thumbs up False Dragonhead
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General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 9b
Plant Height: 24 - 48 inches
Plant Spread: 24 - 36 inches
Leaves: Other: smooth, 3 to 6 inches long, sharply toothed, opposite,lanceolate
Flowers: Showy
Other: bloom from bottom to top
Flower Color: Lavender
Bloom Size: Under 1"
Flower Time: Summer
Late summer or early fall
Inflorescence Height: 12 to 18 inches
Underground structures: Rhizome
Uses: Cut Flower
Will Naturalize
Wildlife Attractant: Bees
Resistances: Deer Resistant
Propagation: Seeds: Provide light
Needs specific temperature: 70F
Days to germinate: 21-42
Depth to plant seed: Thickness of seed
Suitable for wintersowing
Start indoors
Can handle transplanting
Other info: Space plants 18-24 inches apart in garden. Self seeds.
Propagation: Other methods: Division
Other: rhizomes
Pollinators: Bumblebees
Various insects
Conservation status: Least Concern (LC)

Conservation status:
Conservation status: Least Concern

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Posted by Deebie (midstate South Carolina - Zone 8a) on Aug 12, 2014 6:29 AM

I enjoy growing and sharing this plant with others. To prevent excessive reseeding, either cut off the flowers to enjoy inside or deadhead the plant after the blooms fade. Dig up unwanted plants in the spring while the plant and rootball are small and share them with other gardeners either here on ATP or locally. Be sure to let them know about its invasive tendencies and how to keep it in control. It's a fun plant for kids, as the flowers remain in the position that they are turned, hence the name obedient plant.

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Posted by gardengus (Indiana Zone 5b) on Nov 8, 2012 8:35 AM

a good plant for some late color in the perennial garden
spreads well and may need some management to keep from taking over.
also a good source of nectar for bees

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Posted by virginiarose (Virginia - Zone 8a) on Oct 16, 2013 1:35 AM

May be a noxious weed or invasive.

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Posted by KFredenburg (Black Hills, SD - Zone 5a) on Jun 10, 2020 1:25 PM

Use false dragonhead in a border or allow it to spread in large clumps in a naturalistic meadow garden.

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Plant Events from our members
piksihk On August 1, 2018 Bloomed
piksihk On June 1, 2015 Bloomed
piksihk On March 28, 2015 Obtained plant
greene On October 3, 2015 Obtained plant
Obtained plant at local swap.
gardengus On July 24, 2015 Bloomed
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
Banner for November 8, 2020 by mmolyson by mmolyson Nov 9, 2020 5:14 AM 13
Unidentifiable perennial by Kregbell Oct 8, 2018 10:05 AM 3
Help ID This Beauty by checlarkglobal Aug 15, 2018 7:34 AM 2
What is this plant by jessiemagnol Jul 23, 2018 4:23 PM 2
Live Oak by jerseyridgearts Jan 11, 2018 11:00 PM 15
Can't identify this Plant by Clark367 Dec 1, 2016 4:43 AM 2
Yardening in the Mid-Atlantic by Eric4home May 16, 2021 6:26 PM 3,938
Obedient Plant (Physostegia virginiana) by gardenglassgems Sep 9, 2015 8:13 AM 14
Obedient Plant (Physostegia virginiana) by SCButtercup Jul 14, 2015 3:38 AM 2
HAVE seeds to TRADE (EU or elsewhere) by fixpix Sep 21, 2012 3:48 AM 0

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