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Plant profile · Austin & Hill Country

Spach's Evening Primrose

Oenothera spachiana
native · Central Texas

Spach's Evening Primrose is an annual wildflower native to Central Texas that grows 1–1.5 ft tall and 1 ft wide. It wants full sun or part shade and low water. Blooms yellow in spring. Good for bees.

Will it grow in your yard?

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The facts

3 sources
Type
Annual wildflower
Sun
Full sun to part shade (4–8 hrs of direct sun)
Water
Low
Height
1–1.5 ft
Spread
1 ft
Bloom
Spring · yellow
Soil
Recorded on sand, well drained
Wildlife
Supports bees

Where it grows

Recorded in these EPA Level IV ecoregions in the Austin and Hill Country launch area:

Northern Blackland PrairieSouthern Post Oak SavannaFloodplains and Low TerracesSan Antonio Prairie

10 occurrence records in Central Texas (GBIF).

Can you buy it?

Also grows here — hard to find. Native and recorded growing in Central Texas, but not on the grower stock lists we read. Sourcing varies: some are stocked widely, others you will have to hunt for.