Are you supposed to turn watermelons as they grow?

Author: Dr. Tyler Considine II  |  Last update: Thursday, March 12, 2026

To prevent rotting, gently lift the fruit as it gets bigger and turn it. you can also mulch with plastic around the plants. Common pests include cucumber beetles and vine borers. To prevent these, use floating row covers but remove them once the plants begin to flower.

Should you rotate a growing watermelon?

Once the melons start growing a decent size I rotated them about a 25 degrees clockwise and then back once a week or so. This made it a more circular fruit instead of lopsided. They were ready when there was a definite circle on the melon where the stem meets it. Good luck!

Should you turn a watermelon?

Should watermelon be rotated as it grows? Yes, the vine should be trained to go in and out as it grows.

What is the secret to growing watermelon?

The key to healthy watermelon is enough water. However, do not overwater your plants. Make sure the soil around the roots of the watermelon vines remains moist. Too much water can cause watermelon to rot. As fruits grow on the vines, protect your watermelon from moisture by placing straw under each fruit.

Does watermelon need to ripen off the vine?

Watermelons do not ripen after harvest and should be left on the vine until they are fully ripe. Signs of ripeness include: The spot where the fruit touches the ground becomes more prominent and changes color (typically yellow). The tendril closest to the fruit becomes brown and dries up.

6 Watermelon Growing Mistakes To Avoid 🍉

Will watermelon ripen if left on the counter?

Some, like watermelon, do not continue to ripen once harvested. Therefore, flavor will not improve nor will they become sweeter—t is what it is at harvest. However, cantaloupe and similar fruit will continue to ripen after harvest.

What should you not plant next to watermelon?

Because other members of the Cucurbitae family are all attacked by cucumber beetles, planting watermelons next to these crops is not recommended:
  • Cucumbers.
  • Summer squash/zucchini.
  • Pumpkins.
  • Winter squash.

What month do you harvest watermelons?

Many watermelon varieties require around 85 days, or two and a half months, to develop their fruit fully. If you planted in early June, expect an August harvest, with the reminder that temperatures above 95 degrees or below 50 degrees may have slowed development.

What makes watermelon sweeter while growing?

Heat brings out melons' sweetness, so make sure to plant them in a location that warms up early in spring and stays hot through the end of September. The south side of a fence or wall is ideal as the structure will absorb heat and light from the sun and reflect it back onto the melons.

How many watermelons should you leave on the vine?

Most watermelon vines can support two to four average-sized watermelons or one to two bigger melons. To grow a massive blue ribbon melon, prune all but one melon from the plant.

What is the two finger rule for watermelon?

To measure the stripes on your watermelon, simply hold two fingers together lengthwise along the melon. See if you can fit both fingers within the darker green area between two white stripes, as shown in the photo above. If so, your watermelon should perfectly ripe.

Can you eat unripe watermelon?

Can you eat an unripe watermelon? Underripe watermelons are safe to eat, but they aren't particularly enjoyable. Unripe melon tastes diluted and watery, instead of sweet.

What happens if you plant watermelons too close together?

In the case of spacing watermelon plants, those set too far apart waste valuable garden space while those set too close together compete for light, air and soil nutrients, resulting in a potentially compromised crop.

Do watermelons need to be kept off the ground?

Watermelons have huge appetites. Keep them well-fed with a continuous supply of nutrients by using a slow-release fertilizer regularly. Keep young melons off the ground with a bed of straw. Harvest watermelons when they turn from bright to dull green.

When should I pick my watermelon off the vine?

Answer: Harvest when the underside or "belly" of the melon turns from a greenish white to buttery yellow or cream. This color change is especially pronounced on the dark green-skinned varieties.

Do watermelons come back every year?

Let's set the record straight: watermelons are annuals, meaning they complete their life cycle in just one growing season. They cannot survive winter frosts and do not regrow from the same roots each year. Any watermelon plants that emerge in successive years are likely due to self-seeding, not perennial growth habits.

Do tomatoes and watermelon grow well together?

Can You Plant Watermelon Next to Tomatoes? No, tomatoes are considered incompatible to be planted next to watermelons. They are heavy feeders as the favorite summer fruit. In addition, its growth habit can turn into a large bush that can shade the main crop.

Can you plant watermelons in the same spot every year?

To prevent diseases, do not plant watermelon in the same spot year after year, or immediately before or after other melon. If you can, avoid planting watermelon in the same spot before or after other members of the cucurbit family as well.

What stops watermelon from growing?

Watermelon is also a heavy feeder and needs proper nutrients in the soil to grow to its full potential. When soil is infertile or sitting at the wrong pH level, this can cause stunted growth of the overall plant.

How long can a watermelon sit after being picked?

A whole watermelon can be stored at or around room temperature for 7 to 10 days, but for the freshest and sweetest flavor, the sooner you can savor the watermelon the better.

Can dogs eat watermelon?

Both red and yellow watermelon are safe and healthy fruits for most puppies and adult dogs to eat. However, dogs that have diabetes or sugar sensitivities as well as dogs that are obese should not be given the fruit.

Why are my watermelons not turning red?

Certain viruses can also affect watermelon ripening. The burst of ethylene that researchers found could also be an issue. In plants where ethylene production is compromised, this could lead to later ripening or incomplete ripening. Potassium may also be an issue.

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