Planting and Growing the Diamond Petal Primrose
Also known as fourpoint evening-primrose, the diamond petal primrose is native to the United States. It is from the evening-primrose family of plants and botanically listed as Oenothera rhombipetala.
Diamond Petal Primrose Description
Growing two to three feet high, this biennial has a rosette of leaves in the first growing season and a stem with flowers the second growing season. Yellow blooms are on a spike, blooming from May to September. They open at night and close in the morning. Leaves are deciduous and are green.
Growing Guide
The diamond petal primrose prefers to grow in full sun or partial shade with a dry sandy soil. It is able to be propagated by seed that is sown in the fall season.
Distribution
This annual is found in the states of Arkansas, Iowa, Illinois, Kansas, Louisiana, Michigan, Minnesota, Missouri, North Dakota, Nebraska, New Mexico, Oklahoma, South Carolina, South Dakota, Texas, and Wisconsin. It is seen in openings, prairies, plains, meadows, savannahs, and pastures.
Herbal Remedy
The leaves of the diamond petal primrose were once used for poultice.
Uses
This does well in a naturalized meadow but it will have the best growth when there is supplemental watering through the summer. It should be mulched and have the flowers deadheaded for the best growth.
Classification
Kingdom - Plantae- Plants
Subkingdom - Tracheobionta- Vascular plants
Superdivision - Spermatophyta- Seed plants
Division - Magnoliophyta- Flowering plants
Class - Magnoliopsida- Dicotyledons
Subclass - Rosidae
Order - Myrtales
Family - Onagraceae- Evening Primrose family
Genus - Oenothera L.- evening primrose
Species - Oenothera rhombipetala Nutt. ex Torr. & A. Gray- fourpoint evening primrose
Source: NPIN, PlantsDatabase
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