IPOMOEA muelleri

A fast-growing trailing or climbing vine related to the bush potato with heart-shaped leaves and large funnel shaped flower 4 cm long and 5 cm wide that occur in various colours from pale pink to reddish-purple throughout the year in its native range.

Prefers well-drained soil in an open sunny position, drought-resistant but frost tender.

Occurs naturally in the Northern and arid regions of Australia. 

Grow notes:

Although seed can be sown most of the year in many parts of Australia seed is generally best sown in spring or autumn in temperate climates, avoid the coldest and hottest months of the year. The optimum germination temperature for germination is around 18-22°C.

Ipomoea seeds germinate readily, however, they do have a hard outer coating that is impervious to water and generally, germination will normally not occur unless the seed is scarified by abrading or pre-treated with boiling water first.

1. Place the seed in a container and pour in just-boiled water and allow to soak overnight.
2. The swollen seed can then be sown, re-treat seeds that have not swollen.
3. Sow the depth of seed keep warm & moist but not wet.
4. Germination should occur in 10-21 days @ 18-22C.

General note: Seeds of many plants are dormant and require specific conditions or pre-treatment for germination.
Do not be too hasty to discard seed that does not germinate, seeds will often lay dormant until the conditions are similar to their natural requirements for germination to occur. Containers put to one side will often surprise long after they were discarded.