Are Crimson Sweet Watermelons Small

Crimson Sweet watermelons are not small—they’re actually classified as large melons, typically weighing between 15 and 35 pounds when fully mature.
 
So if you’ve been wondering whether Crimson Sweet watermelons are small, the short answer is no.
 
These melons are known for their impressive size, and that’s one of the reasons gardeners love growing them.
 
In this post, we’ll explore why Crimson Sweet watermelons aren’t small, what affects their size, and how to grow them to their full potential.
 

Why Crimson Sweet Watermelons Are Not Small

Crimson Sweet watermelons are not small because they belong to a category of watermelons bred specifically for their large, round shape and high yield.
 
Here’s why these melons consistently grow to be so big:
 

1. They’re a Classic Large Varietal

Crimson Sweet watermelons were developed by Kansas State University in the 1960s as a disease-resistant, high-yielding variety.
 
From the start, they were bred to produce large fruit with sweet, bright red flesh.
 
The average Crimson Sweet watermelon weighs between 15 and 35 pounds, though some can grow even larger with optimal conditions.
 
So when someone asks if Crimson Sweet watermelons are small, the answer is a firm no—they’re among the bigger varieties you can grow.
 

2. Genetics Set the Size Potential

The size of a Crimson Sweet watermelon is largely determined by its genetics.
 
Unlike personal or “icebox” watermelons that max out around 5 to 10 pounds, Crimson Sweet watermelons have genes that push them toward larger sizes.
 
That genetic blueprint means even an average Crimson Sweet watermelon will still be significantly larger than most small varieties.
 
You can’t shrink a Crimson Sweet watermelon down to icebox size just by picking it early—its potential is baked into its DNA.
 

3. They Need Space to Reach Full Size

One reason Crimson Sweet watermelons might appear smaller in some gardens is because they were grown in cramped conditions.
 
These vines need plenty of room to sprawl, usually 6 to 10 feet between plants.
 
When Crimson Sweet watermelons are crowded, their fruit may not reach full size, but that doesn’t mean the variety itself is small.
 
Give them space, and you’ll see just how large Crimson Sweet watermelons can get.
 

What Determines the Size of Crimson Sweet Watermelons

Several factors influence how big your Crimson Sweet watermelons will grow.
 
Understanding these can help you get the biggest, healthiest fruit possible.
 

1. Sunlight and Warmth

Crimson Sweet watermelons thrive in full sun and warm temperatures.
 
They need at least 8 to 10 hours of direct sunlight daily to produce large fruit.
 
In cooler climates or shady spots, Crimson Sweet watermelons may stay smaller than their potential.
 
That’s not because the variety is small—it’s because the growing conditions limited their growth.
 

2. Water and Soil Nutrition

Consistent watering and nutrient-rich soil are key to growing large Crimson Sweet watermelons.
 
These melons need steady moisture, especially during fruit development.
 
A soil rich in organic matter and balanced fertilizers supports the kind of vigorous growth that leads to big fruit.
 
Skip the water or nutrients, and your Crimson Sweet watermelons may end up smaller than expected.
 

3. Pollination and Fruit Set

Good pollination leads to well-formed, larger Crimson Sweet watermelons.
 
If flowers aren’t properly pollinated, the fruit may be misshapen or smaller.
 
Planting flowers nearby to attract bees can help ensure your Crimson Sweet watermelons develop to their full size.
 

How to Grow Large Crimson Sweet Watermelons

If you want to grow big Crimson Sweet watermelons, here’s what to do:
 

1. Start with Quality Seeds

Buy Crimson Sweet watermelon seeds from a reputable supplier to ensure strong genetics.
 
Healthy seeds give you the best chance at large, vigorous plants.
 

2. Prepare the Soil Well

Work plenty of compost into the soil before planting.
 
Crimson Sweet watermelons are heavy feeders and need rich soil to reach their full size.
 

3. Give Them Room to Spread

Space your Crimson Sweet watermelon plants at least 6 feet apart in rows 8 to 10 feet apart.
 
Crowding is one of the most common reasons Crimson Sweet watermelons stay smaller than they should.
 

4. Water Deeply and Consistently

Water your Crimson Sweet watermelons deeply once or twice a week.
 
Avoid letting the soil dry out completely, especially when the fruit is swelling.
 

5. Harvest at the Right Time

Don’t pick Crimson Sweet watermelons too early.
 
Wait until the tendril nearest the fruit turns brown and the underside is creamy yellow.
 
A ripe Crimson Sweet watermelon will be much larger than an unripe one.
 

So, Are Crimson Sweet Watermelons Small?

Crimson Sweet watermelons are not small—they’re large, robust melons that typically weigh 15 to 35 pounds when fully grown.
 
If yours turned out small, it’s likely due to growing conditions like poor soil, lack of water, or not enough space, not because the variety itself is small.
 
With the right care, Crimson Sweet watermelons will reward you with big, sweet fruit that’s perfect for summer picnics and family gatherings.
 
So next time someone asks if Crimson Sweet watermelons are small, you can confidently tell them no.