Oenothera tetragona, the glaucous evening primrose, is a species of flowering plant in the family Onagraceae, native to eastern North America, and introduced to Germany, the Czech Republic, and Myanmar. The Royal Horticultural Society considers it a good plant to attract pollinators. There is a cultivar, 'Glaber', also known as 'Clarence Elliott'.
Oenothera fruticosa subsp. glauca has strong resistance to disease and is typically not vulnerable to illnesses. Nevertheless, it can be affected by pests and diseases present in its environment. Such infections are generally mild. Regarding care, this plant needs a moderate level of maintenance. It should be pruned on a regular basis to preserve an attractive appearance and healthy growth. Fertilizing can also encourage flowering. Oenothera fruticosa subsp. glauca is appropriate for anyone with outdoor space, such as a garden or patio, and does not demand extensive horticultural experience. It may require additional attention when cultivated indoors.
How to keep Oenothera Tetragona.
Light
Oenothera fruticosa subsp. glauca is a sun-loving, herbaceous perennial native to open habitats and commonly found in meadows and grasslands. It prefers full sun but can also tolerate partial sun.
Temperature
Oenothera fruticosa subsp. glauca can tolerate a wide range of temperatures, but its distribution may still be restricted by different combinations of moisture and heat. It performs best in warm summer conditions with sufficient rainfall or irrigation. Extended periods of cloudy, rainy weather or prolonged high temperatures can raise the risk of Oenothera fruticosa subsp. glauca dying. In winter, adequate protection from cold can enhance the plant’s survival rate.
Fertilizer
The best time to fertilize Oenothera fruticosa subsp. glauca is in early spring, when it is coming out of dormancy and beginning active growth. Fertilization supplies important nutrients needed for healthy growth. Although Oenothera fruticosa subsp. glauca has fairly low fertilizer requirements, applying fertilizer once a year can improve its survival and encourage better, longer-lasting flowers.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Perennial
- Genus
- Oenothera
- Family
- Onagraceae
- Hardiness Zone
- 4-8
- Mature Height
- 0.3 m to 1.83 m
- Mature Spread
- 61 cm
- Leaf Color
- Purple, Green
- Leaf Type
- Deciduous
- Flower Color
- Yellow
- Flower Size
- 3.05 cm to 5.08 cm
- Bloom Time
- Late spring, Early summer, Mid summer
- Planting Time
- Spring, Summer
- Harvest Time
- Mid summer, Late summer, Early fall
Other names.
