Cardiospermum halicacabum

Balloon Vine

£1.00

90% (2 Reviews)

This product is produced and supplied in association with Thompson & Morgan

Unusual twining climbing

Curious seedpods make an interesting focal point

Ideal for twining through shrubs or over an obelisk on the patio

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Description Sowing More Info Delivery Reviews
Cardiospermum halicacabum is actually a climbing perennial, but generally grown as a half hardy annual in the UK. Its delicate climbing stems bear finely cut foliage and tiny white flowers in summer. As the flowers fade, a profusion of papery seedpods with a curious balloon-like structure take their place. Within the seedpods, each round, black seed is painted with a white heart. This unusual plant makes an intriguing climber for twining over a willow obelisk or scrambling through shrubs. Perfect for cottage garden borders or as a talking point on the patio or in the conservatory. Height: 3m (10’). Spread: 50cm (20").


1 packet (20 seeds) (26037)

Sow Cardiospermum seed indoors from March to May. Use a good seed compost, just covering the seed with a thin layer of compost or vermiculite. Germination takes 21-30 days at 18-20C (64-68F). Seal in a polythene bag after sowing and do not exclude light.

When large enough to handle, transplant the seedlings into 7.5cm (3in) pots, and grow them on in cooler conditions. When all risk of frost has passed and plants are well grown, gradually acclimatise them to outdoor conditions or 7 -10 days before planting out in their final positions.

Plant Cardiospermum in any moist, well-drained soil in sun or semi-shade. Cardiospermum will require support for its twining stems.

Feed and water regularly throughout the growing season. Cardiospermum will require support for its twining stems. It is best grown as a half-hardy annual, but may be overwintered in a warm greenhouse or conservatory if required.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £4.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £6.99 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

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