What To Do When Watermelon Starts To Grow

When watermelon starts to grow, it begins an exciting phase that signals your hard work is finally paying off.
 
Those tiny green fruits appear almost overnight, and suddenly you’re wondering what to do next to ensure they reach their full sweet potential.
 
Watermelon growing is a rewarding journey, but the moment those little melons show up, the care routine shifts a bit.
 
In this post, we’ll walk through exactly what to do when watermelon starts to grow, from watering and feeding to protecting them from pests and knowing when to harvest.
 
Let’s dig in so you can enjoy a bumper crop of juicy, homegrown watermelon this season.
 

What to Do When Watermelon Starts to Grow: Key Steps for Healthy Fruit

Once watermelon starts to grow, your main job is to keep the plant healthy and stress-free so the fruit can size up and ripen properly.
 
When watermelon begins growing, it’s a critical time because the plant is diverting energy from vine growth to fruit development.
 
Here’s what you should focus on to support those baby watermelons.
 

1. Keep Watering Consistent but Not Excessive

When watermelon starts to grow, consistent moisture is crucial for even fruit development.
 
Water deeply once or twice a week, aiming for about an inch of water per week, including rainfall.
 
Avoid overhead watering to keep the leaves dry, which helps prevent fungal diseases.
 
As the fruit grows, reduce watering slightly once the melons reach full size to concentrate sugars and avoid bland, watery flesh.
 

2. Side-Dress with Balanced Fertilizer

When watermelon starts to grow, the plant needs a nutrient boost, especially potassium and phosphorus, to support fruit formation.
 
Use a balanced fertilizer or one slightly higher in phosphorus and potassium, and apply it as a side-dressing about six inches from the plant base.
 
Avoid excessive nitrogen at this stage, as it encourages leafy growth at the expense of fruit.
 
A little compost tea or a slow-release organic fertilizer also works wonders when watermelon starts growing.
 

3. Protect Developing Fruit from Pests and Disease

When watermelon starts to grow, it becomes a target for pests like aphids, cucumber beetles, and squash bugs.
 
Inspect your vines regularly and remove any affected leaves or fruits immediately.
 
Row covers can help early on, but once flowers appear, you’ll need to remove them to allow pollination.
 
For disease prevention, ensure good air circulation and avoid wetting the foliage when you water.
 
If you spot powdery mildew or downy mildew, treat with a fungicide approved for edible crops.
 

4. Support the Fruit and Manage Vines

When watermelon starts to grow, the tiny melons can sometimes sit directly on the soil, which invites rot.
 
Place a piece of cardboard, straw, or a plastic tray under each fruit to keep it elevated and dry.
 
Also, trim back any excess vines that aren’t producing fruit to direct energy to the developing watermelons.
 
This simple step when watermelon starts to grow can make a big difference in fruit size and quality.
 

How to Tell When Watermelon Is Ready to Harvest

Knowing when to pick your watermelon is just as important as knowing what to do when watermelon starts to grow.
 
A ripe watermelon has a dull, hollow sound when you thump it, and the tendril closest to the fruit turns brown and dry.
 
The spot where the watermelon rested on the ground should be creamy yellow, not white or green.
 
Also, the skin should feel slightly rough and resistant to scratching with your fingernail.
 
Once these signs appear, your watermelon is ready to be cut from the vine with a sharp knife, leaving a small stem attached.
 

Common Mistakes to Avoid When Watermelon Starts to Grow

Even seasoned gardeners make a few missteps when watermelon starts to grow.
 
Overwatering is a big one—it can lead to split fruit and bland taste.
 
Another mistake is ignoring pest control, which can wipe out your crop in days.
 
Also, don’t rush the harvest; watermelons don’t ripen off the vine like some other fruits.
 
Finally, avoid disturbing the vines too much when watermelon starts to grow, as they’re fragile and can be damaged easily.
 

So, What to Do When Watermelon Starts to Grow?

When watermelon starts to grow, your job is to provide consistent water, the right nutrients, and protection from pests and disease.
 
Support the fruit, manage the vines, and watch for the signs of ripeness.
 
By following these steps when watermelon starts to grow, you’ll set the stage for a sweet, juicy harvest.
 
So keep an eye on those little green globes, and get ready to enjoy the taste of summer straight from your garden.