Longflower Evening Primrose (Oenothera Affinis) is a annual herb in the Onagraceae family with easy care difficulty. It requires moderate watering and full sun light in USDA hardiness zones 9-11. This plant is safe for cats and dogs.

Oenothera affinis is a species of flowering plant in the evening primrose family, native to South America, primarily Bolivia to Brazil. It is known for its long flowers and grows mostly in subtropical biomes.

Longflower Evening Primrose

Longflower Evening Primrose

Oenothera Affinis

Oenothera affinis is a species of flowering plant in the evening primrose family, native to South America, primarily Bolivia to Brazil. It is known for its long flowers and grows mostly in subtropical biomes.

Quick Facts

Type
herb
Lifecycle
annual
Care Difficulty
Easy
Water Needs
Moderate
Light
Full Sun
Hardiness Zones
9-11

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:sandy, loamy
Indoor:No
Outdoor:Yes
Garden Use:ornamental, pollinator attractant

Care Calendar

Monthly care tasks for Longflower Evening Primrose

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Longflower Evening Primrose
Longflower Evening Primrose detail

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Taxonomy

Family:Onagraceae
Genus:Oenothera