Why Melons Split

Cause for Split

• Melons are sensitive to watering, especially in the last couple of weeks of growth before harvest. If the plants are overwatered at this time, the fruit will start to split open, according to the University of Minnesota Extension. This overwatering symptom is common to all melon varieties. Reducing the amount of water at the time of ripening also helps the fruit develop better flavor.

Water Need

• The suggested way to water melon plants is with the drip irrigation system. Apply 1 to 2 inches of water once a week, watering deeply though infrequently. Make sure the soil is soaked thoroughly at the time of watering. Avoid watering in a manner that only lightly moistens the top surface of the soil, as this is not beneficial to plant growth.

Mulch

• Using mulch around melon plants is a good way to not only keep weeds in check but also conserve soil moisture. Plastic mulches raise soil temperature, helping fruit mature early with less chance of getting fruit rot. Recommended organic mulches include straw or wood chips. Wait until the soil reaches a temperatures of 75 degrees Fahrenheit or higher before applying organic mulches. When laying plastic mulches, stretch the material tightly over the soil and make sure it is wrinkle free. Secure the edges with soil.

Ripeness Indicator

• Checking the fruit regularly for signs of ripening is a good way to know when to start reducing water. One of the best signs for ripening is when the fruit underside, or the area that is in contact with the soil, starts to develop a yellowish color. Thump the fruit to check for a dull sound, also a sign of near ripening.