Cardiospermum halicacabumBalloon Vine

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.

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.