The Ozark sundrops, also known as Oenothera macrocarpa, is a low-growing perennial plant belonging to the family Onagraceae. It has a wide native range and is found growing in the Midwest, especially in Missouri. It is a beautiful yellow-flowered groundcover and is ideal for creating a contrast in rock gardens, along banks, groundcover, and in containers.
The etymology of Oenothera macrocarpa originates from a combination of Greek words for “wine” (oinos) and “flower” (thera). The species name “macrocarpa” refers to the plant having large seeds.
How to Plant
The Ozark sundrops is tolerant of various types of soil, but prefers a well-draining, sandy soil and a sunny position, as it blooms best with a minimum of four hours of direct sunlight, although it will tolerate some light shade as well. When planting, be sure to allow enough space for adequate air circulation to prevent disease and insect infestations. When planting in containers, use a prepackaged potting soil specifically formulated for perennials.
Water your Ozark sundrops regularly shortly after planting, making sure not to over-water and avoiding soggy soil. A consistently moist environment is necessary for a year-round display. Established plants should only need occasional supplemental watering during dry spells. Fertilizer should be applied in the form of a slow-release balanced fertilizer in both spring and fall and should be applied as directed on the label.
Meaning and Symbolism
The Ozark sundrops is known for its striking beauty, lending itself to a range of meanings and uses. Many regard the flower as a sign of hope, renewal, and new beginnings. Native tribes considered the flower an indicator of spring and renewal, while others saw the small yellow petals as a reminder of falling stars. In addition to its spiritual or emotional implications, the plant also has numerous practical uses for humans, promoting healthy eating and lifestyle. The leaves of the plant provide a nutritious addition to salads, while the oil from the seed acts as an antiseptic.
History, Mythology, and Religious Significance
The Ozark sundrops has a long and important history, from Ancient Greece to Medieval Europe and beyond. In Greek mythology, Hermes believed the plant gave sustenance to animals, which is why it became known as a good luck flower. In Medieval Europe, the plant was associated with chastity, love, and infinity. In modern cultures, the plant is still admired for its beauty and has become an important part of many cultures, its yellow flowers representing rebirth, renewal, and hope.
Flower Varieties and Their Defining Characteristics
The different varieties of Ozark sundrops have distinct characteristics that make each one special. Oenothera macrocarpa, commonly known as Yellow Jewelweed, is a low-growing perennial with yellow flowers and slender shiny green leaves. The flowers are 2-3 cm in diameter and fragrant and only open for one day. The leaves are narrow and elongated, giving them a unique bristle-like appearance. The Late Grand is an unusual variety with yellow-orange blooms and tall green foliage. It blooms from mid-summer to early fall and is an excellent choice for borders and bedding. The Dwarf Grand is a small variety, ideal for groundcover, rock gardens, and containers. It blooms from mid-summer to early fall and reaches a maximum height of 8 inches.
How to Pot and Repot Ozark Sundrops
Ozark sundrops are easy to pot and repot. To pot your Ozark sundrop, start by selecting a pot that is roughly twice the size of the root ball of the plant. Make sure that the container has drainage holes and is filled with a soil-based potting mix. Water the soil until it is moist and then gently remove the plant from its old container and place it in the center of the new one. Fill in any gaps between the potting mix and the root ball with more potting mix, and then give it a light tap to set it firmly in the soil. Water it well and then add a thin layer of mulch. Place the container in a spot with bright, indirect light, and keep the soil moist but not soggy.
How to Prune
The Ozark sundrops is a low maintenance plant that only needs to be pruned occasionally. The best time to prune is during late winter or early spring when the plant has had a chance to go dormant and is ready for new growth. Pruning is essential for promoting healthy growth, as it helps to make the plant more compact and encourages new growth. Before pruning, make sure to sterilize your pruning shears with rubbing alcohol. Start by removing any damaged, dead, or diseased branches. Then, prune back the plants to the desired height and shape to encourage more lush growth. Make sure to cut at an angle, so that water can run off the cut.
How to Propagate
The Ozark sundrops can be propagated in two different ways, through seeds and cuttings. The easiest way to propagate is by taking stem cuttings in late spring to early summer. To do this, start by taking a 4-6 inch cutting of a stem that is mature with healthy foliage and no flowers. Dip the base of the cutting in rooting hormone and then place it in some moist potting soil in a 6-inch container. Cover the cutting with a plastic bag and keep it in an area with bright, indirect sunlight. Make sure to water it regularly to keep the soil moist but not soggy. It can take up to three weeks for the cutting to form roots and start to grow.
Common Pests and Diseases
Ozark sundrops are generally resistant to pests and diseases, but can still succumb to a few common ones. To prevent any damage to your plants, make sure to practice proper cultural care such as providing good air circulation, adequate sunlight, and water. If you see any signs of pests such as aphids, treat the plant with an insecticidal soap or neem oil. As for diseases, watch out for fungal issues such as mildew, rust, and root rot. If you see any signs of these diseases, make sure to treat the plant promptly with an appropriate fungicide.
FAQs About Oenothera Macrocarpa
Q. How tall do Ozark Sundrops grow?
A. Ozark Sundrops typically grow to be between 8-12 inches tall.
Q. When do Ozark Sundrops bloom?
A. Ozark Sundrops start blooming in late spring and continue blooming until early fall.
Q. How much water and sunlight do Ozark Sundrops need?
A. Ozark Sundrops need to be kept consistently moist, but not soggy. They also need a minimum of four hours of direct sunlight to bloom properly.
Table Fact Sheet
| Ozark Sundrops | Oenothera Macrocarpa |
| Family | Onagraceae |
| Plant Type | Perennial |
| Mature Size | 8-12 inches |
| Sun Exposure | Full Sun |
| Soil Type | Well-draining, sandy soil |
| Soil pH | 5.5-7.5 |
| Bloom Time | Late Spring to Early Fall |
| Flower Color | Yellow/Yellow-Orange |
| Hardiness Zones | 4-9 |
| Native Area | Midwest, especially Missouri |
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