Onagraceae
Evening Primrose: Edible Plant
Oenothera biennis
An extremely hardy plant that prefers full sun and well-drained soils. It requires little maintenance once established and tolerates poor soils.
Every 10 days
Direct sun
-34° - 35°C
30% - 60%
Categories
What is Evening Primrose?
Evening Primrose (Oenothera biennis) is a easy-care plant from the Onagraceae family. Oenothera biennis, known as Evening Primrose, is a biennial plant native to North America. It is famous for its vibrant yellow flowers that open rapidly at dusk and emit a mild fragrance to attract nocturnal pollinators. In its first year, the plant forms a rosette of low-growing leaves, and in its...
Evening Primrose grows up to 1.5m, with spread of 60cm, watering every 10 days, -34°C – 35°C, 30–60% humidity. It is not suitable for indoor environments and safe for pets.
Unlike many tropical plants, Evening Primrose tolerates watering mistakes. Best for beginners. Unlike many popular species, Evening Primrose is safe to keep around pets.
How to Care for Evening Primrose?
TLDR: Evening Primrose needs Direct sun, watering every 10 days, and temperatures between -34-35°C with 30-60% humidity.
How Often Should You Water Evening Primrose?
Water young plants regularly. Once established, Evening Primrose is quite drought-tolerant.
How Much Light Does Evening Primrose Need?
Requires full sun to bloom abundantly, although it tolerates partial shade in very hot climates.
What Is the Best Soil for Evening Primrose?
Adapts well to sandy, stony, and even nutrient-poor soils, as long as they do not become waterlogged.
What Pot Should You Use for Evening Primrose?
Prefere direct planting in the ground due to its deep taproot, but can be grown in large, deep pots.
Care Schedule
Fertilize
Every 30 days
What Is Evening Primrose and Where Does It Come From?
Oenothera biennis, known as Evening Primrose, is a biennial plant native to North America. It is famous for its vibrant yellow flowers that open rapidly at dusk and emit a mild fragrance to attract nocturnal pollinators. In its first year, the plant forms a rosette of low-growing leaves, and in its second year, it develops a tall, flowering stalk. It is widely recognized in the herbal medicine industry for the oil extracted from its seeds, which is rich in gamma-linolenic acid.
How to Propagate Evening Primrose?
Sowing
- The plant self-seeds easily if the seed pods are not removed.
- Winter cold helps break the dormancy of seeds planted in the fall.
- 1 Soil preparation
Choose a location with well-drained soil and clear away any weeds.
- 2 Sowing
Scatter the seeds over the soil surface in the fall or early spring.
- 3 Covering
Lightly press the seeds against the soil, covering them with only a very thin layer of earth, as they require light to germinate.
- 4 Moisture
Keep the soil slightly moist until the seedlings are established.
Materials needed:
How Big Does Evening Primrose Grow?
TLDR: Evening Primrose can reach up to 1.5m tall with Fast growth rate.
Max height
1.5m
Spread
60cm
Growth rate
Fast
Foliage
Deciduous
Plant Uses
Ornamental
Great for decoration
Medicinal
Medicinal properties
Edible
Can be consumed
Medicinal Uses
- Seed oil for relief of PMS and menopause symptoms
- Treatment of eczema and skin conditions
- Anti-inflammatory properties
- Support for cardiovascular health
Culinary Uses
- Cooked roots (flavor similar to parsnip)
- Edible flowers in salads
- Seeds used as a supplement or in breads
- Young leaves cooked as a leafy green
Is your plant showing symptoms?
Click on the symptom to discover possible causes:
What Diseases Commonly Affect Evening Primrose?
TLDR: Evening Primrose is susceptible to 6 known diseases. Monitor regularly for early detection.
Root Rot
Root rot is a serious fungal disease that affects the root system of plants, causing them to decay and die. It is primarily caused by overwatering, poor drainage, or soil-borne fungi such as Pythium, Phytophthora, Rhizoctonia, and Fusarium. The disease thrives in waterlogged conditions where roots are deprived of oxygen, making them susceptible to fungal infection.
Powdery Mildew
Powdery mildew is a common fungal disease caused by various fungi species including Erysiphe, Podosphaera, Oïdium, and Leveillula. It affects over 10,000 plant species worldwide. The disease thrives in warm, dry climates with high humidity and appears as a distinctive white powdery coating on plant surfaces.
Leaf Spot
Leaf spot is a common fungal disease caused by various pathogens including Alternaria, Ascochyta, Colletotrichum, Septoria, and Venturia. It primarily affects leaves, causing discolored spots that can lead to premature leaf drop if left untreated.
Aphids
Aphids are small, soft-bodied, pear-shaped insects (1/16 to 1/8 inch long) that feed by sucking nutrient-rich sap from plants. They reproduce rapidly and can quickly weaken plants, causing distorted growth and transmitting plant viruses. Aphids come in various colors including green, black, red, yellow, brown, and gray. They secrete honeydew, a sticky substance that attracts ants and encourages sooty mold growth.
Meaning & Symbolism
Represents inconstancy, youth, and mystery, due to its habit of blooming only at night.
Compare with similar plants
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|---|---|---|---|---|
| Peace Lily | Easy | Low light | 4d | ⚠️ |
| Swiss Cheese Plant | Easy | Partial shade | 10d | ⚠️ |
| Golden Pothos | Easy | Low light | 8d | ⚠️ |
| ZZ Plant | Easy | Low light | 18d | ⚠️ |
