Ozark sundrops Oenothera macrocarpa 5-10 pot P9

Size: Potmaat leidend

5-10cm

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Pot 9x9 cm (P9)

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Benefits according to our specialist

Plantable year-round
Low maintenance
Easy plant

Plant features
Description
Planting and care
Packaging and shipping

Genus
Oenothera (view all varieties)

Root type
Pot

Pot size
9x9 cm (P9)

Flowering months
June, July, August

Leaf colour
Yellow

Possibilities
Border, Group planting, Edge planting

Soil type
All soil types, well-drained, not too wet

Positioning
Semi-shade, Sun

Winter hardiness
-15,0°C / -9,4°C, USDA zone 7b/8a

Fruit-bearing plants
No

Water needs
Average water

Number of plants per m²
12

Evergreen plants
No

Leaf colour
Green

Fragrant plants
No

Growth habit
Clump-forming growth habit

Height at time of delivery excluding pot/clod
5-10

Mature height (cm)
25

Art. no.
1000839

Description

Oenothera macrocarpa | Ozark sundrops

Oenothera macrocarpa, commonly known as Ozark sundrops or Missouri primrose, is a delightful perennial that graces gardens with its vibrant yellow blooms. Originating from the United States and Mexico, this plant is perfect for adding a splash of color to borders and edges.

With its clump-forming growth habit, the Ozark sundrop is as beautiful as it is easy to care for, requiring little maintenance to thrive.

Key Features

The Oenothera species is known for its striking yellow flowers that can be enjoyed throughout the summer months from June to August.
It's an ideal plant for borders, group planting, or edge planting, where its bright flowers can create a vivid display.
The Missouri primrose is a hardy plant that adapts to all soil types, provided they are well-drained and not overly wet.
While it thrives in full sun, it can also manage in partial shade, offering flexibility in garden placement.
With an ultimate height of 25 cm, it is a compact plant that will fit well in various garden designs without overshadowing other plantings.
As a deciduous species, it will shed its leaves in winter, but its foliage remains a lush green from spring through autumn.

Tips

To ensure the health and longevity of Oenothera macrocarpa, plant it in a location that receives plenty of sunlight, although it can tolerate a bit of shade.
Water the plant regularly, but take care not to overwater, as it does not tolerate excessively wet conditions.
No pruning is required for this low-maintenance plant, but you may wish to remove spent flowers to encourage further blooming.
For propagation, seeds can be sown directly into the soil where the plants are to grow. This should ideally be done in the spring after the risk of frost has passed.
Although it is not drought-resistant, with adequate care and average water needs, your Oenothera macrocarpa will be a reliable and cheerful presence in your garden.

Ideal placement of a Oenothera macrocarpa

For optimal growth, Oenothera macrocarpa should be planted in a location that receives full sun to partial shade. It thrives in a range of soil types, provided they are well-drained and not overly wet, which ensures the roots are not waterlogged. The species is particularly suited for border, group, and edge plantings, where its clump-forming growth habit and vibrant yellow blooms from June to August can be fully appreciated. While average watering will suffice, care should be taken to avoid drought conditions, as this plant does not have drought-resistant properties.

How do I plant a Oenothera macrocarpa?

To plant Oenothera macrocarpa, choose a site with full sun to partial shade and ensure the soil is well-drained and not overly saturated. Although this species can tolerate a range of soil types, it thrives in conditions that mimic its native habitat. The pot-grown roots should be carefully placed in a hole that accommodates the root ball size, and the surrounding soil gently pressed to eliminate air pockets. Water the plant thoroughly after planting to settle the soil and provide moisture necessary for establishment. This species favors a good balance of moisture, particularly as it gets established, but take care not to overwater.

Pruning a Oenothera macrocarpa

Oenothera macrocarpa thrives with minimal intervention and does not require regular pruning. To maintain its natural shape and support vigorous growth, simply remove any spent flowers to encourage additional blooming throughout its flowering months. Once the blooming season concludes, you may trim back the foliage to tidy the plant if desired. However, this species is quite self-sufficient, and such action is more for aesthetic purposes than horticultural necessity. Always ensure the use of clean, sharp tools to prevent damage to the plant's structure.

Watering a Oenothera macrocarpa

Oenothera macrocarpa thrives with consistent moisture, particularly during its peak blooming period from June to August. While it has an average water need, attention should be paid to ensure the soil does not become overly saturated, as it prefers well-drained conditions. During dry spells, supplement natural rainfall by watering deeply, which will encourage a robust root system. Be mindful to avoid overhead watering late in the day to reduce the risk of excess moisture on the foliage overnight. Regular watering will support the continued vibrancy and health of this species' striking yellow blooms.

Fertilising a Oenothera macrocarpa

For Oenothera macrocarpa, a light feeding strategy is effective in promoting vigorous growth and a profusion of its striking yellow blooms. Fertilization should be executed in early spring to coincide with the onset of active growth. A balanced, slow-release fertilizer is ideal for this species, ensuring that nutrients are provided steadily throughout the flowering months. It is imperative to avoid over-fertilization, as this can lead to excessive foliage at the expense of flower production. Moreover, since this species thrives in well-drained soils, it is less tolerant of excessively wet conditions, and fertilizers should be applied when the soil is moist but not saturated. This careful approach to fertilization will support the health and floral display of the plant without compromising its natural resilience.

The characteristics of a Oenothera macrocarpa

The vibrant Oenothera macrocarpa, while known for its showy blossoms, also has a remarkable root system that thrives in well-draining soil. When potted, ensure ample drainage to encourage healthy root development. This species also adapts to a range of soil types, making it a versatile choice for gardeners. Its drought-tolerant nature allows it to flourish in dry conditions, where many other plants would struggle, showcasing its resilience and low-maintenance qualities.

What will be the height of Oenothera macrocarpa?

Oenothera macrocarpa typically grows to a height ranging from 10 to 50 centimeters when fully mature.

What will be the width of Oenothera macrocarpa?

Oenothera macrocarpa will reach a maximum spread ranging from 10 centimeters to 50 centimeters.

Which soil type is most suitable for the Oenothera macrocarpa?

Oenothera macrocarpa can thrive in various soil types, as long as the soil is well-drained and not excessively wet. Ensuring proper drainage is essential for the optimal growth of this plant.

What is the ideal positioning for the Oenothera macrocarpa?

Oenothera macrocarpa thrives in locations where it can bask in sunlight or receive partial shade. This plant excels in environments that offer a balance between direct sunlight and partial shade, providing it with the optimal conditions for healthy growth.

What is the flowering colour of the Oenothera macrocarpa?

The blossoms of Oenothera macrocarpa boast a delightful yellow hue, adding a vibrant touch to the plant's appearance.

Is the Oenothera macrocarpa hardy?

Oenothera macrocarpa demonstrates winter hardiness, with an ability to withstand temperatures ranging from -15.0°C to -9.4°C. This places it within the USDA hardiness zones 7b to 8a. As a result, Oenothera macrocarpa possesses the resilience to endure winter conditions within the specified temperature range.

Is the Oenothera macrocarpa evergreen?

Oenothera macrocarpa is not an evergreen plant. It is deciduous, shedding its leaves in the autumn and regrowing them in the spring.

What is the growth strength of the Oenothera macrocarpa?

Oenothera macrocarpa typically reaches its full height within a span of 2 to 5 years, signifying a moderately rapid growth rate.

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