How to grow morning glory

When to plant morning glory

Common morning glory is a fast-growing annual twining vine whose 2-inch funnel-shaped flowers open in the morning from mid-summer to fall (NC State). Direct sow after the last spring frost in a well-drained, even poor, sunny spot; scarify the seeds and soak them 12 to 24 hours before sowing to aid germination. It self-seeds readily and can become weedy.

Morning Glory is timed by season rather than your frost dates, so the planting calendar does not generate ZIP-specific dates for it. Check the cited sources below to fine-tune for your area.