Growing sweet and large watermelons involves careful attention to soil, water, sunlight, and care throughout the growing season. Here are some guidelines to help you achieve big and sweet watermelons:

Select the Right Variety:

Choose a watermelon variety known for its sweetness and size. Some popular varieties include Sugar Baby, Crimson Sweet, and Charleston Gray.

Check the seed packet or plant label for information on sweetness and size.

Prepare Well-Draining Soil:

Watermelons prefer well-draining, loamy soil. Amend your soil with organic matter like compost to improve fertility and drainage.

Ensure a slightly acidic to neutral pH level, ideally between 6.0 and 6.8.

Provide Full Sunlight:

Watermelons thrive in full sunlight. Ensure that the planting site receives at least 8 hours of direct sunlight daily.

Adequate sunlight is crucial for the development of sugars in the fruit, contributing to sweetness.

Planting and Spacing:

Plant watermelon seeds or seedlings after the last frost when the soil has warmed up.

Space the plants according to the recommendations on the seed packet or plant label. Typically, they need several feet of space between plants to allow for proper growth.


Water consistently to keep the soil consistently moist, especially during the flowering and fruit-setting stages. Inconsistent watering can lead to issues like cracking or bland-tasting fruit.

Use drip irrigation or a soaker hose to water at the base of the plants, avoiding wetting the foliage.