THIS IS WHY WE SUGGEST AND EMPHASIZE TO COLD STRATIFY SEEDS THAT REQUIRE COLD STRATIFICATION BEFORE PLANTING THEM. 50 Iris Seeds Fragrant Flower Plant (not bulbs). It tricks them into thinking they went through a cold winter.
These plants thrive in poor soil, need little water once established, and bloom beautifully year after year. Spacing: 11″ (30cm) between plants. Frost Tolerance: Excellent (hardy to -25°F / -32°C).
RUBIO Tall Bearded Iris. Classification: Tall Bearded (TB). General Plant Information (Edit). Bloom Color Classification: Pink. Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35).
Classification: Tall Bearded (TB). – BLUE BARON. General Plant Information (Edit). Bloom Color Classification: Blue. Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35). Seedling Number: N-875-1.