name: Ozark Sundrops or Missouri
Latin name: Oenothera macrocarpa
Elevation to: 8500'
Growth habit: Mat forming
Max height: 12" - 15"
Spread: 18" - 24"
Flowers: Yes, June - October Flower type: Cup shaped
Native to area: Yes, Oenothera
Available varieties: 5+
Ozark Sundrops is also commonly called Missouri Evening
Primrose. It prefers to be planted in full sun in well drained soil.
Once established this hardy perennial tolerates poor soils, abuse and
drought extremely well.
Ozark Sundrops is a very vigorous grower that could become
invasive under ideal growing conditions. Missouri Evening Primrose
blossoms start out as a red
bud, which opens to a yellow flower late in the day and continues
flowering until the
following morning. The plant re-seeds freely and grows well in containers.
Ozark Sundrops seed can be sown in individual pots in a cold frame or greenhouse
and moved outdoors after danger of frost has passed. Or purchase
pre-started plants at your local Garden Center or greenhouse. Space new container grown plants 18"
- 24" apart.
Missouri Evening Primrose grows a large tap
root which makes them very difficult to divide and relocate.
Potential pests ~ diseases:
Mildews or root rot if kept too wet.