General Plant Information (Edit)
Full Sun to Partial Shade
|Soil pH Preferences:
||Slightly acid (6.1 – 6.5)
|Minimum cold hardiness:
||Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
|Maximum recommended zone:
||12 to 24 inches
||12 to 24 inches, spreads forming dense colonies.
||Other: Elliptical (oval) shaped capsule, tapering towards base. When mature the capsule splits, releasing numerous seeds which are dispersed with the wind.
||Late spring or early summer
||Moths and Butterflies
- Meadow evening-primrose
- Evening Primrose
Posted by ILPARW
(southeast Pennsylvania - Zone 6b) on Jun 9, 2019 5:45 PM concerning plant:
I drive about once a week past Jenkins Arboretum in southeast Pennsylvania that contains mostly American native plants of the Mid-Atlantic Region. While on a hike through the property I ran across a patch of yellow flowering Sundrops and I assumed at first they were the common species of O. fruticosa (the Narrowleaf or Shrubby Sundrops) that I see occasionally planted around in gardens and sold at many garden centers, but the label sign indicated a similar but different species of the Meadow or Prairie Sundrops. This species has a native range of about southeast Canada & New England down into Virginia to Mississippi to eastern Texas to Iowa & Wisconsin & Michigan. It is known to form dense mats and it has a shallow root system, so if it moves too far, one can easily dig some up. It is sold by some native plant nurseries.
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