Tall morning glory 'Clarke's Heavenly Blue'

Try to plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Clarke's Heavenly Blue is thought of as tender, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside. A soil ph of between 6.1 and 7.8 is ideal for Clarke's Heavenly Blue as it does best in weakly acidic soil - weakly alkaline soil.

Ensure a seed sowing distance of 1.33 feet (41.0 cm).

By our calculations, you should look at sowing Clarke's Heavenly Blue about 0 days after your last frost date.

As Clarke's Heavenly Blue is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.