84 – 91 days. Supernova primula seeds promise delicate and early Spring blooms to your garden when others can not. Supernova seeds grow vigorous, frost-hardy primulas that thrive in a wide range of cool and well-shaded North American gardens. Primula supernova seeds grow compact, yet durable 8” tall creeping mounds dazzling with 2” blooms in a spectacular mix of salmon, fuchsia, canary, indigo, magenta, ivory, and peach. Supernova primula seeds are an ideal annual ground cover to accent any walkway, fencing, or flower bed. 100 seeds.
Growing Supernova Primula Garden Seeds
- Taxonomy: Primula x polyantha
- Other Names: Primrose
- Seed Type: Annual
- Sow Indoors or Outdoors: Supernova primula thrives in cool temperatures and is best sown outside directly 4 – 6 weeks before the final frost, as frost and cooler temperatures will aid primula seeds in germination. For earliest blooming, start seeds indoors 8 – 10 weeks before the final frost and transplant once there are two sets of true leaves to a cool and well-shaded spot in the garden. Primula is not recommended for maturing indoors since many homes do not have the cool temperatures required at night.
- Days to Maturity: 84 - 91 days
- Hardiness Zone: 3 - 8
- Planting Depth: Plant 2 - 3 seeds ¼” deep
- Plant Spacing: 6”
- Growth Habit: 8” tall compact shrub with a tidy 5 – 6” spread covered in 2” blooms
- Soil Preference: Hummus-rich, organically fertile, well-drained
- Light Preference: Partial shade - full shade
- Diseases/Pests/Troubleshooting: Primula plants generally do not thrive in pots and containers. Use only a half-strength fertilizer because it can build up in the soil and cause problems. Monitor for slugs and snails on young Supernova plants and then for aphids, whiteflies, mealybugs, and other leaf eaters as plants reaches maturity.
- Color: Mix of salmon, fuchsia, canary, indigo, magenta, ivory, and peach
Supernova primula seeds thrive in cool temperatures and best sown outside directly 4 – 6 weeks before the final frost. Frost and cooler temperatures will aid primula seeds in germination. For earliest blooming, start Supernova primula seeds indoors 8 – 10 weeks before the final frost and transplant once there are two sets of true leaves to a cool and well-shaded spot. Primula is not recommended for growing indoors since many homes do not have the cool temperatures required at night. For direct sowing, plant 2 – 3 Supernova primula seeds ¼” deep and 6” apart in hummus-rich, organically fertile, and well-drained soil in partial shade. Supernova primula thrives in cool and well-shaded gardens and do not generally thrive in pots and containers. Use only a half-strength fertilizer because it can build up in the soil and cause problems. Monitor for slugs and snails on young Supernova plants and then for aphids, whiteflies, mealybugs, and other leaf eaters as plants reaches maturity. Supernova primula seeds mature in 84 – 91 days as 8” tall compact shrubs with a tidy 5 – 6” spread covered in 2” blooms in a mix of salmon, fuchsia, canary, indigo, magenta, ivory, and peach.
Primula x polyantha is a member of the Primulacae family and widely referred to simply as Primrose. The primula genus has been heavily cultivated and hybridized for centuries because Primrose is often one of spring's first blooming flowers.