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You can plant cantaloupe plants in the ground once the soil has warmed to at least 65°F and all danger of frost has passed.
Timing is everything with cantaloupe, because these warm-season melons absolutely hate the cold.
If you plant cantaloupe plants too early, the seeds or transplants will just sit there, sulk, and possibly rot before they ever get a chance to grow.
In this post, we’ll walk through exactly how to plant cantaloupe plants in the ground, step by step, so you can enjoy sweet, juicy melons straight from your own garden.
Let’s dig in.
How to Plant Cantaloupe Plants in the Ground
Planting cantaloupe plants in the ground starts with picking the right spot and preparing the soil the right way.
Here’s how to do it so your cantaloupe plants get off to a strong start.
1. Pick a Sunny Spot With Plenty of Space
Cantaloupe plants need full sun, which means at least six to eight hours of direct sunlight every day.
The more sun, the sweeter your melons will be, because sunlight drives photosynthesis, which is how the plant produces the sugars that end up in the fruit.
Also, give cantaloupe plants plenty of room, since their vines can sprawl six feet or more across the ground.
If you’re short on garden space, you can train cantaloupe plants to grow vertically on a trellis, but you’ll need to support the heavy fruit with slings as it develops.
2. Amend the Soil With Compost
Cantaloupe plants thrive in loose, well-draining soil that’s rich in organic matter.
Before you plant, mix a generous amount of compost or aged manure into the top six to eight inches of soil.
This improves drainage and gives cantaloupe plants a steady supply of nutrients as they grow.
You can also form raised mounds or hills about four to six inches tall, which is a classic way to plant cantaloupe plants because the mounds warm up faster in spring and drain better after rain.
3. Plant Your Cantaloupe Plants at the Right Depth
If you’re planting cantaloupe plants from transplants, dig a hole slightly wider than the root ball and set each plant so the top of the root ball sits level with the soil surface.
Space cantaloupe plants about three to four feet apart in rows that are six feet apart.
If you’re direct sowing seeds, plant them about one inch deep, with four to six seeds per hill, then thin them down to the two or three strongest seedlings once they sprout.
Either way, firm the soil gently around the base of each cantaloupe plant and water it in well.
Caring for Cantaloupe Plants After Planting
Once your cantaloupe plants are in the ground, a little consistent care goes a long way toward a big harvest.
Here’s what to focus on after planting cantaloupe plants.
1. Water Deeply but Not Too Often
Cantaloupe plants have deep roots, so they prefer a good soak once or twice a week rather than a light sprinkle every day.
Aim for about one to two inches of water per week, including rainfall.
Water at the base of the plant, not the leaves, to help prevent fungal diseases like powdery mildew.
And as your cantaloupe plants approach harvest time, cut back slightly on watering, since too much water late in the season can dilute the flavor of the fruit.
2. Feed Them Gently
Cantaloupe plants aren’t heavy feeders, especially if you worked compost into the soil before planting.
That said, a light dose of balanced fertilizer when the vines start running gives them a nice boost.
Avoid over-fertilizing with nitrogen, though, because you’ll end up with huge, leafy cantaloupe plants and very few actual melons.
3. Watch for Pests and Diseases
Keep an eye out for common pests like cucumber beetles and aphids, which love cantaloupe plants just as much as you love the fruit.
Row covers early in the season can protect young cantaloupe plants, but remove them once flowers appear so pollinators can get in.
Also, plant cantaloupe in a different spot each year to reduce the risk of soil-borne diseases building up.
When to Plant Cantaloupe Plants in the Ground
Timing is arguably the most important part of how to plant cantaloupe plants successfully.
The best time to plant cantaloupe plants in the ground is two to four weeks after your last expected frost date, once soil temperatures stay consistently above 65°F.
In cooler climates, you can start cantaloupe seeds indoors about three weeks before your last frost date, then transplant them outside once the weather warms.
If you plant cantaloupe plants too early in cold soil, the seeds may rot and transplants may stall.
Give them warmth from the start, and your cantaloupe plants will reward you with vigorous growth and plenty of sweet fruit by midsummer.
So, How Do You Plant Cantaloupe Plants in the Ground?
You plant cantaloupe plants in the ground by choosing a sunny spot, amending the soil with compost, and setting them out after the last frost when the soil is warm.
Space cantaloupe plants three to four feet apart, water deeply, feed lightly, and keep an eye out for pests.
Hope this post has helped you learn how to plant cantaloupe plants in the ground so you can grow a healthy, productive patch this season.