Cardiospermum halicacabum or Love-in-a-Puff 
Love-in-a-Puff, Cardiospermum halicacabum,
This is a vigorous growing vine that produces green seed pods that are a beautiful addition to arrangements.
Planting Tips:
- A warm-season annual that prefers full sun.
- Plant after danger of frost and once soil has warmed.
- Start seeds indoors 4-6 weeks before planting date or cast seeds directly in the garden, covering seed with soil.
- Soaking seed overnight will speed sprouting. Allow 5-10 days to germinate.
- Needs supportive structure.
- 120 days to bloom/pod.
Harvest Tips:
- The pods will develop following the bloom. Harvest vines early in the day to prevent wilting.
Above information came from thegardenshop.com
Also note that this vine can be invasive.
