| Can I start cardinal climbers indoors, if so, how many weeks before last frost? Or do they need to sown directly into the ground? |
| Seeds of Ipomoea, the Cardinal Climber, can be sown indoors 4-6 weeks before planting outdoors. To hasten germination, chip the seedcoat and soak seeds overnight before planting. Seeds take 5-21 days to germinate at temperatures of 70F to 85F. |
