Oenothera Species, River Primrose, Trumpet Evening-Primrose

Oenotherajamesii

Family
Onagraceae (on-uh-GRAY-see-ee)
Genus
Oenothera (ee-no-THEE-ruh)
Species
jamesii (JAMES-ee-eye)
Synonym
Oenothera suzukiana
Onagra jamesii
Sun Exposure
Full Sun
Sun to Partial Shade
Height
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Hardiness
Bloom Color
Bright Yellow
Bloom Time
Mid Summer
Late Summer/Early Fall
Mid Fall
Other Details
Category
Biennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
Patent Information
Propagation Methods
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; sow indoors before last frost
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored
Regional

This plant is said to grow outdoors in the following regions:

Helotes, Texas

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Gardener's Notes:

1
positive
0
neutral
0
negative
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NE Medina Co., TX (Zone 8a) | November 2007 | positive

In May I bought a couple of fairly large plants grown by someone interested in native plants. This year was an unusual summer, lots of ra...Read More

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