Watermelon 'Ultra Cool Hybrid'

Keep in mind when planting that Ultra Cool Hybrid 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 6.5 and 7.5 is ideal for Ultra Cool Hybrid as it does best in weakly acidic soil - weakly alkaline soil.

Sow 0.39 inches (1.0 cm) deep with a guideline distance of 8.12 feet (2.50 metres). Soil temperature should be kept higher than 16°C / 61°F to ensure good germination.

As Ultra Cool Hybrid is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.