Species Missouri evening primrose
Yellow flowers with stamen, yellow stigma and style, green buds leaves and stems, white midrib and blades.

Missouri evening primrose

Oenothera macrocarpa

Missouri evening primrose (Oenothera macrocarpa) is a species of flowering plant found in the midwestern United States. With showy yellow petals and vibrant red stamens, it is an eye-catching one. Missouri evening primrose blooms during late spring and summer. It has a bushy, upright structure and can reach heights of up to 2 feet. Native to prairies and meadows, it thrives in full sun and well-drained soil. It is a drought tolerant plant and does not require fertilization. This makes it a good choice for landscaping in drier areas. Missouri evening primrose is propagated by seed or by rooted cuttings. With its low-maintenance needs and attractive blooms, it is an excellent addition to any garden.

Cycle:

Herbaceous Perennial

Watering:

Minimum

Propagation:

Seed Propagation,Cutting,Root Division,Layering Propagation

Hardiness Zone:

3 - 7

Flowers:

Yellow Flowers

Sun:

Full sun

Fruits:

brown,tan Fruits Ready In Summer

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Maintenance:

Low

Salt Tolerant:

Yes

Care Level:

Medium

watering

Missouri evening primrose (Oenothera macrocarpa) should be watered regularly. During the growing season, water the plant about once a week, or when the top inch or 2 of soil is dry. In the winter, water only when the top layer of soil gets very dry. To protect the plant and conserve water, add 2 to 3 inches of mulch around the base of the plant. Avoid overwatering, which can cause the plant to become stressed.

sunlight

Missouri evening primrose is native to the midwestern United States. It prefers a sunny location and needs at least 6 hours of direct sunlight each day. In addition, it will thrive in partial shade or direct sunlight for the warmer months, from late spring through early fall. Morning sunlight up to mid-day is the most beneficial. When temperatures drop in the fall, the plant is able to tolerate less direct sunlight.

pruning

Missouri evening primrose (Oenothera macrocarpa) typically need to be pruned once a year in the spring. During this time, you should trim off any weak or dead growth, as well as any stems that have grown out of shape or that look too dense. Make sure to prune back to a healthy bud to promote new growth. When you are trimming, aim to remove 1-third of the existing stems and foliage. This will help the plant to remain healthy and promote a bushy growth.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Missouri evening primrose typically starts flowering in April.

Harvest Fruit

The best time to start harvesting the fruits from Oenothera macrocarpa is typically in July and August.

Hardiness Map