The watermelon image that comes to most of our minds when we hear the word is a picnic watermelon. Picnic watermelons weigh on average 17 lbs. or 7,711 grams.
Out of the 39 watermelon varieties grown the lightest average weight was Lemon Ice at 13 lbs. and the heaviest was ORS6260 at 21.2 lbs. The average weight of the 39 different varieties grown was 17.2 lbs.
Watermelon Categories by Weight
Watermelons are separated into three main categoires by weight: personal (mini) watermelons, icebox watermelons, and picnic watermelons. Other ways watermelons are divided is seeded or seedless, yellow or green exteriors, and yellow, orange, and white fleshed watermelons.
How Much Does a Personal Watermelon Weigh?
Personal watermelons weigh about 5 lbs. and range from 3-7 lbs. These are the smallest watermelons and are also called mini-watermelons.
Pony Red Mini and Yellow Baby are two popular varieties of personal watermelons.
How Much Does an Icebox Watermelon Weigh?
Icebox watermelons were originally grown to produce a watermelon that fit into a refrigerator more easily than a picnic watermelon. They range from 6-15 lbs.
Sugar Baby, Tiger Baby, and Gold in Gold are three popular icebox watermelon varieties.
How Much Does a Picnic Watermelon Weigh?
A picnic watermelon is the biggest of the watermelons and averages around 17 lbs. with a common range of 15-25 lbs.
It is not uncommon to get larger watermelons in the garden where watermelon plants have more space than commercial grows. More space equals more light, water, and nutrients for the plant to produce bug fruit.
The largest watermelon on record was 351 lbs. This watermelon was of the variety “Carolina Cross” and was grown in Tennesse in 2013.
Picnic watermelons offer the most varieties available to choose from. A few popular picnic watermelon varieties are Jubilee, Crimson Sweet, and Buttercup.
Watermelon Weight Varies
As you can see the weight of a watermelon can range from 1 lb. to over 300 lbs. In the garden watermelon plants have more space and will produce more watermelons on an individual plant. Even the size of the watermelons from the same plant will vary.
To grow the biggest possible watermelon possible a gardener could do three basic things.
- Select a variety of watermelon that is known for producing big heavy watermelons
- Give the watermelon plant as perfect as possible growing conditions. Plenty of fertilizer, water, and shade cloths during midday if temperatures were regularly above 85 degrees.
- When the plant started to flower and enter the pollination and fruit producing stage the gardener would trim the plant to have one fruit on the plant. This way the plant could put all its resources into the one watermelon.
Obviously this is not the most efficient way to grow watermelons in the garden but the basics for growing the world’s largest watermelon.
A trick to growing watermelons is to stop watering after the melons have reached their near full size, about 10-14 days before harvest. This will concentrate the sugar content of the watermelon!
To test the sugar content of watermelons you can use what’s called a brix refractometer. This device will tell you the amount of sugar in a liquid. A good score for a watermelon is 12% and 14% above is an excellent sugar content for watermelon.
How Many Pounds of Watermelon Do You Need Per Person?
Aim to have 1/2 lb. – 5 lbs. of watermelon per person depending on the function. If you’re having a barbeque with lots of dishes available 1/2 lb. of watermelon per person should do.
If you have a group of 5 or so that are all in the mood for watermelon you would all be better served with 5 lbs. of watermelon per person.
1 lb. of watermelon is equal to 1.6 cups of watermelon fruit. This measurement does not include any weight from the rind.
Please comment below with your own thoughts about watermelons!