Balloon Vine is a tender perennial vining plant that can reach up to 10 feet in length. It is so named for the seed pods it produces which resemble inflated balloons.

This annual is sensitive to cold, and is ideally started indoors 8-10 weeks before the last expected frost in order to get a jump on the growing season. However, these seeds can also be sown directly outdoors once all frost danger has passed.

Balloon Vine should be planted in well-drained soil in an area of full sun.

• Balloon Vine is a vigorous climber, and it should be planted at the base of a structure that it can cling to.
• Sow the seeds at a depth of 1/4 inch, and cover. If starting directly outdoors, plant in fertile, well-drained soil.
• Keep the seeds moist until germination, which should occur in 2-3 weeks.
• If starting indoors, plant seeds in loam-based potting compost in small pots. Grow in an area of bright filtered light.
• Before transplanting seedlings into the garden, it's essential to "harden them off". This involves acclimating young plants to outdoor conditions by placing them in a sheltered outdoor area for about a week. Initially, shield them from strong winds and direct sunlight. If there's a risk of frost overnight, either cover the plants or bring them indoors, then return them outside in the morning. This hardening off method helps strengthen the plant's cell structure, minimizing transplant shock and sun damage.
• Balloon vine is usually grown as an annual, but it can survive as a perennial in frost-free zones. In early spring, thin out congested growth of plants grown as perennials.

• Keep weeds under control during the growing season. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their seeds from germinating.
• Mulches play a vital role in preserving soil moisture and ensuring consistent soil temperatures. When it comes to annuals, using organic mulch made from shredded leaves not only enhances the appearance of the bed but also enriches the soil as it decomposes over time. Remember to keep mulch away from the plant stems to avoid potential rot issues.
• Water deeply until established, and then allow the soil to dry out in between waterings.
• Allow the fruits to completely dry out before harvesting the seeds.
• If cutting the flowers, harvest them in the morning.
• If this vine starts spreading too aggressively in your garden, simply pinch off new growth to contain it.