Cardiospermum Halicacabum Seeds - Balloon Vine Flower Seeds

Cardiospermum Seeds

Flower Specifications

Season: Annual

USDA Zones: 5 - 11

Height: 120 inches

Bloom Season: Mid summer to mid fall

Bloom Color: Green to red

Environment: Full sun

Soil Type: Moist, but well drained soils, pH 6.1 - 7.8

Deer Resistant: Yes

House Plant: No

Latin Name: Cardiospermum Halicacabum

Planting Directions

Temperature: 65 - 70F

Average Germ Time: 14 - 21 days

Light Required: Yes

Depth: Plant seed 1/4 inch deep

Sowing Rate: 1 - 2 seeds per plant

Moisture: Keep seeds moist until germination

Plant Spacing: 6 inches

Care & Maintenance: Cardiospermum

Balloon Vine (Cardiospermum Halicacabum) - Start Balloon Vine seeds for this fun-to-grow tender perennial vine. Cardiospermum Halicacabum Balloon Vine is a woody climbing plant with tendrils that grab structures like a trellis or fence, and the vine produces small white flowers which after time forms the large ornamental seed pods that resemble balloons.

Common names

The flower seed gives the plant another one of its common names, Heartseed Vine. Another common name for Cardiospermum is Love in a Puff Vine.

cardiospermum flowers

Flower seed | balloon vine


Cardiospermum vine can climb up to 10 feet in no time forming its remarkable inflated seed pods. The seed pods change color over time from green to red as the plant matures. The Cardiospermum seeds are very unique with a hard shell of dark brown to black, and each seed has a perfect cream colored heart.

Indoors, grow in loam-based potting compost (No. 3) in bright filtered light. In the growing season, water freely and apply a liquid fertilizer monthly; keep just moist in winter. Pot on our top-dress in spring. Outdoors, grow in fertile, moist but well-drained soil in full sun. Provide support. In early spring, thin out congested growth of plants grown as perennials.

  • Height: 120 inches (vining)
  • USDA Zones: 5 - 11
  • Season: Annual
  • Attracts bees
  • Deer Resistant: Yes
balloon vine seed

How to Grow

Start Balloon Vine seeds directly outdoors in a prepared site. Cardiospermum seeds need to be covered with 1/4 inch of soil and kept moist until germination. Give the Balloon Vine plant a structure to climb as it grows quickly. Cardiospermum vine can grow as a perennial in frost free zones.

  • Sowing Rate: 1 - 2 seeds per plant
  • Average Germ Time: 14 - 21 days
  • Keep moist until germination
  • Depth: 1/4 inch