With its hybrid vigor, 21st Century is more adapted to a wide range of growing conditions both in the greenhouse and in the garden compared to other garden phlox. Best yet, this mixture withstands hot and humid conditions. Primed seed ensures that seed germinate rapidly and well. 21st Century phlox presents its best attributes when produced in jumbo packs, 4" pots or larger containers.
Color: Mixture of blue, crimson, scarlet, salmon and white
Seed Primed 100 Seeds: On backorder. Estimated due week of 03-23-20
Approximately 265,255 seeds per pound
Soil temperature: 58 - 70 degrees fahrenheit
Germination lighting: Dark required
Germination days: 5 - 10 days
Grow on temperature day: 55 - 60 degrees fahrenheit
Grow on temperature night: 50 - 55 degrees fahrenheit
Weeks indoor: 8 - 14 weeks
Plant height: 10"
Plant type: annual