The listing, Yellow prim rose seeds/river plant has ended.
About 50 seeds; picked and storied in my fridge in 2012. This primrose grows pretty tall, unlike what it says in the information below.
Polyantha primrose: Primula X polyantha
Bloom color: Yellow, pink, purple, blue or white, depending on cultivar
Bloom time: Early to late spring
Length of bloom: 3-4 weeks or more
Height: 6-12 inches
Spread: 8-9 inches
Hardiness: USDA zones 3-9
Heat tolerance: AHS heat zones 8-6
Light preference: Partial shade (full sun in cool climates)
Soil preferences: Humus-rich, moist but well-drained soil
Propagation: Divide in early summer, after flowering
Garden uses: Container planting, edging, mass planting, rock garden, wall planting, woodland garden; along paths, on slopes, in wet areas.
Retrieved information from Organic gardening.com