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How to Grow Cantaloupe Plants: The Complete Guide

Botanical Name
Cucumis melo
Plant Type
Fruit
Sun Exposure
Full Sun
Soil pH
Slightly Acidic to Neutral

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Planting, Growing, and Harvesting Cantaloupes

Catherine Boeckmann

A juicy slice of a ripe cantaloupe is what summer is all about! This heat-loving melon has a relatively long growing season, making it especially well-suited for southern gardeners. Here鈥檚 how to grow and care for cantaloupes.

About Cantaloupes

Cantaloupes are a type of melon with a tan-green rind. Typically, the rind is covered in a spiderweb-like pattern, though some varieties may also be striped. Inside, the flesh is bright orange and sweet. Their growing requirements are similar to that of other popular melons, such as watermelons and honeydew melons.

Cantaloupes vs. Muskmelons

Oddly enough, the melon that is commonly referred to as a 鈥渃antaloupe鈥 in North America is not actually a true cantaloupe, which is more common in Europe. In fact, our 鈥渃antaloupes鈥 are a type of muskmelon. (True cantaloupe has a rough, warty rind and is not widely grown or commercially available in the US and Canada.)

In North America, the names 鈥渕uskmelon鈥 and 鈥渃antaloupe鈥 are used interchangeably, but we will refer to this fruit simply as 鈥渃antaloupe鈥 on this page to avoid confusion!

Cantaloupes sliced

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Planting

Plant in a spot that gets full sun (6-8 hours of direct sunlight per day). To produce the best melons, the plants need all the light they can get. Plus, the afternoon sun will dry off leaves, reducing the risk of fungal diseases that comes with wet foliage.

Cantaloupes do best in well-draining soil that鈥檚 a mix between loamy and sandy. (Growing the plants in raised rows鈥攁ka 鈥渉ills鈥濃攅nsures good drainage.) Amend soil with aged manure or compost before planting. Learn more about soil amendments and preparing soil for planting.

Mulching the planting site with black plastic will serve multiple purposes: it will warm the soil ahead of planting, hinder weed growth, and keep developing fruits clean.

When to Plant Cantaloupes

  • Cantaloupes may be started from seed or purchased as young plants from a nursery. In colder regions, starting with young plants is recommended, as it will give you a head start on the growing season.
  • Starting from seed:
    • If you are in a colder region, start seeds indoors 4 to 6 weeks before your last spring frost date. Cantaloupe vines are very tender and should not be transplanted until all danger of frost has passed and soil temperatures remain above 60掳F (16掳C).
    • If you live in a warmer climate, you may direct sow seeds outdoors as soon as the soil temperature warms to at least 60掳F (16掳C).

How to Plant Cantaloupes

  • Plant seeds 1 inch deep, 18 inches apart, in hills (or hilled rows) about 3 feet apart.
  • If you have limited space, vines can be trained up a support, such as a trellis.

Cantaloupes growing

Growing

  • If a soil test indicates that nutrients are lacking, fertilize with a standard liquid fertilizer when vines start growing and spreading. Later on, avoid nitrogen-heavy fertilizers, as too much nitrogen can result in lots of foliage and less fruit.
  • Row covers are a good way to keep pests like squash bugs and vine borers at bay.
  • Watering is key. While the plants are growing, blooming, and setting fruit, they need about 2 inches per square foot of water (about 1.5 gallons) per week.
    • Water in the morning, and try to avoid wetting the leaves, as wet foliage encourages fungal and other diseases.
    • If possible, use drip irrigation to keep plants consistently and evenly watered.
    • Mulching around the plants can help to retain moisture.
    • Reduce watering once fruits are growing. Hot, dry weather produces the sweetest melons.
    • If you’ve had an exceptional amount of rainfall during the ripening stage, this can cause bland fruit.
  • Once fruit begins to grow, prune end buds off vines. Your plants may produce fewer melons, but they will be larger and of better quality.
  • Vines produce male and female flowers separately on the same plant. They often begin producing male flowers several weeks before the females appear. (Don鈥檛 be discouraged when the first blooms do not produce fruit.)
    • As with other cucurbits, melon flowers require pollination to set fruit, so be kind to the bees! Here’s how to pollinate flowers yourself to increase yields (squash flowers are shown as an example, but the principle is the same for melons).
  • If your muskmelons taste bland, the trouble could be a lack of magnesium in sandy soil. Sweeten the fruit by spraying the vines with this solution: Dissolve 6 1/2 tablespoons of Epsom salts and 3 1/3 tablespoons of borax in 5 gallons of water. Spray the foliage when the vines begin to 鈥渞un鈥 and again when the fruit is about two inches in diameter.

Types

  • 鈥楢尘产谤辞蝉颈补鈥 鈥 85 days to maturity. Among the sweetest varieties.
  • 鈥楢迟丑别苍补鈥 鈥 70-80 days to maturity. Early variety that produces large, 5-6 pound fruits. 
  • 鈥楬ale鈥檚 Best Jumbo鈥 鈥 80-90 days to maturity. Produces 3-pound, aromatic melons.
  • 鈥楳innesota Midget鈥 鈥 70-80 days to maturity. Early variety well-suited for gardens in colder regions. Produces 1-pound, sweetly flavored melons.
  • 鈥楤ush Star鈥 鈥 90 days to maturity. Bush variety suits gardeners with limited space.

Harvesting

How and When to Harvest Cantaloupes

  • When rinds begin to change from green to tan or yellow, the melon is typically ripe enough to pick. Be careful not to pick too early, however.
  • Look for a crack in the stem where it attaches to the fruit. This is a sign of ripeness as well. The fruit should be easy to separate from the vine, but if they fall off by themselves, they are usually overripe.
  • Harvest melon when vines are dry, and be careful not to damage them.
  • Melons will soften after harvesting, but will not continue to sweeten off the vine.
  • Cantaloupe can be stored uncut for 5 or 6 days. If cut, they can last in the refrigerator for about 3 days, wrapped tightly in plastic.
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Wit and Wisdom

  • Cantaloupe was named for Cantalupo, a former papal villa near Rome.

Pests/Diseases

Cantaloupe Pests and Diseases
Pest/DiseaseTypeSymptomsControl/Prevention
AphidsInsectMisshapen/yellow leaves; distorted flowers; leaf drop; sticky 鈥渉oneydew鈥 (excretion) on leaves; sooty, black moldKnock off with water spray; apply insecticidal soap; inspect new plants carefully; use slow-release fertilizers; avoid excess nitrogen; encourage aphid pests such as lacewings, ladybugs, spiders
Cucumber beetlesInsectHoles in leaves/flowers; rasped fruit; plants stunted/die; may transmit bacterial wilt (Bacterial wilt signs: wilting; plants die; ends of cut stems, when pressed together for 10 seconds and pulled apart, release stringy, white sap)Handpick; mulch heavily; use row covers; destroy plants infected with bacterial wilt
Cucumber mosaic virusVirusStunting; mottled green/yellow/white pattern or ringed spots on leaves/fruit; distorted leaf growth; warts on fruitDestroy infected plants; choose resistant varieties and certified virus-free seed; use row covers; disinfect tools; weed; control aphids; use mulch
Fusarium wiltFungusPlants wilt (sometimes on just one side) in daytime; leaves turn yellow (lower ones first); later, entire plant wilts/dies; stunting; stem cross section reveals brown discolorationDestroy infected plants; avoid excessive nitrogen; in acidic soils, raise pH to 7.0; choose resistant varieties; disinfect tools; rotate crops
Powdery mildewFungusTypically, white spots on upper leaf surfaces expand to flour-like coating over entire leaves; foliage may yellow/die; distortion/stunting of leaves/flowersDestroy infected leaves or plants; choose resistant varieties; plant in full sun, if possible; ensure good air circulation; spray plants with 1 teaspoon baking soda dissolved in 1 quart water; destroy crop residue
Squash vine borers (moth & larvae)InsectLarge, wrinkled larvae become orange-red/black, wasp-like, daytime moths; larvae bore into vines; vines wilt suddenly; plants die; mushy area and/or green to orange-yellow, sawdust-like excrement on/near base of plant stemIf detected early, slit infested stem lengthwise halfway to remove borer(s), then bury the cut in moist soil to encourage rooting; wrap seedling stems in aluminum foil collar; catch moths with yellow sticky traps; use row covers if no pests previously, but uncover before flowering; destroy crop residue; rotate crops

Recipes

Grilled Cantaloupe With Prosciutto
Fruit
About The Author

Catherine Boeckmann

Catherine Boeckmann loves nature, stargazing, and gardening so it鈥檚 not surprising that she and The Old Farmer鈥檚 蜜桃恋人 found each other. She leads digital content for the 蜜桃恋人 website, and is also a certified master gardener in the state of Indiana. Read More from Catherine Boeckmann
 

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Comments

Maturity periods for several specific varieties are given above. Check your seed packet or plant tag, if you set a seedling, for the maturity period for your plant/s.

Linda Lopez (not verified)

4 years 4 months ago

Can I plant cantaloupe to grow as a fall crop in zones 9-10? It is very hot here.

You can try; remember it’s not just about temperature. The Sun’s angle and diminishing hours of daylight could prohibit the best results鈥攂ut you may enjoy the experience.

Geri Reski (not verified)

4 years 4 months ago

In a greenhouse?

Annette Mcdavid (not verified)

4 years 7 months ago

I am planting my vegetable garden and was curious about the aged manure it calls for. My grandmothers barn has tons of 15 yr old goat manure. Would that be good for a vegetable garden?

David Mitchell (not verified)

5 years 3 months ago

My betrothed and I wanted to run away and get married but her Mom said we cantaloupe ..

Heather (not verified)

5 years 4 months ago

My vines were off to a great start and I even had 3 fruits set. Then pickleworm infested my vines rapidly. They wiped out all the fruits and most of the leaves, and it took weeks to get them under control. I do have new vines sprouting off the main stem, and even a couple male flowers now. Being so late in the season is there still hope for any yield? I'm bordering zone 9b/10a.

Pamela (not verified)

5 years 6 months ago

I wonder if it is due to very high day heat and then much cooler (sometimes 50 degrees) at night. Also, have had downey/powdery mildew wipe out most of my curcubits. AND curly top has been a problem, too, though I'm not sure the bugs that cause it like melons. Any ideas? Thanks...

Caleb (not verified)

5 years 7 months ago

How do I grow cantaloupe in a backyard garden? Where do I have to grow it? What do I use and how much?

Sally (not verified)

6 years 2 months ago

What is I bore and can it be seen. My vines blossom and the next day it looks like something is digging into the root of the plant