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Plant profile · Austin & Hill Country

Compassplant

Silphium laciniatum
native · Hill Country

Compassplant is a perennial wildflower native to the Texas Hill Country that grows 3–10 ft tall and 1 ft wide. It wants full sun and low water, and handles clay soil. Blooms yellow in Jul–Sep. Good for birds and butterflies.

Will it grow in your yard?

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The facts

5 sources
Type
Perennial wildflower
Sun
Full sun (6–8 hrs of direct sun)
Water
Low
Height
3–10 ft
Spread
1 ft
Bloom
Jul–Sep · yellow
Foliage
Deciduous or dies back in winter
Soil
Takes clay · recorded on clay, dry, sand, well drained
Wildlife
Supports birds and butterflies

Where it grows

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

Balcones CanyonlandsSouthern Post Oak SavannaFloodplains and Low TerracesSan Antonio Prairie

33 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.