How to Grow Honeydew

Growing guide

Overview

Honeydew is a smooth-skinned, pale-fleshed melon that turns intensely sweet when it ripens in real summer heat. It’s slower than cantaloupe and needs a long, warm season, but the flavor is worth the wait. Grow it in full sun with steady moisture and well-drained soil, and give it room to sprawl or a strong trellis.

Soil & planting prep

Honeydew grows best in loose, loamy or sandy soil that drains well and is rich in organic matter. Aim for a soil pH between 6.0 and 6.8. Work in 2 to 3 inches of compost before planting, and space plants 24 inches apart in rows 5 to 6 feet apart.

When to plant

Start honeydew seeds indoors 4 weeks before your last frost date, using a heat mat to keep soil at 80–90°F for fast germination. Transplant seedlings outdoors only after the last frost has passed and the soil has warmed to at least 65°F. In short-season northern areas, choose the fastest-maturing varieties and use black plastic mulch to warm the soil.

How to plant

1. Fill 3- to 4-inch pots with moist seed-starting mix and plant 2 seeds 1 inch deep, then thin to one seedling per pot after germination.
2. Keep seedlings at 80–90°F until they sprout, then grow them on at 70–75°F with 12–14 hours of bright light.
3. Harden off transplants over 7–10 days by gradually exposing them to outdoor sun and wind.
4. Set transplants in the garden 24 inches apart in rows 5–6 feet apart, or in hills of 2–3 plants spaced 4–6 feet apart.
5. Water deeply at planting and keep the soil consistently moist but never soggy; mulch with straw or black plastic to hold warmth and moisture.

5 common mistakes to avoid

• Starting too late in short-season climates: honeydew needs 80–110 days, so if you wait until after last frost to direct-sow, the fruit often won’t ripen before cold weather; start indoors 4 weeks early and use season extenders.
• Overwatering during ripening: too much water as fruit matures dilutes sugars and can cause fruit splitting; taper watering once melons reach full size and the skin turns creamy.
• Planting in cold soil: honeydew seeds and transplants rot or stall below 65°F, so wait until the soil has warmed and nights stay above 50°F.
• Skipping pollination: poor pollination leads to small, misshapen fruit; plant flowers that attract bees and avoid spraying insecticides during bloom.
• Harvesting too early: honeydew does not ripen off the vine, so picking while the skin is still green and hard gives you bland, crunchy fruit; wait for the blossom end to yield slightly and the skin to turn creamy yellow.

Harvesting & storage

Honeydew is ready when the skin turns from green to creamy yellow or white, the blossom end yields slightly to gentle pressure, and the melon smells sweet. Cut the stem with a sharp knife, leaving a short stub, rather than pulling the fruit. Store whole melons at room temperature for a few days to finish ripening, or refrigerate cut pieces in a sealed container for up to 5 days.

Companion planting

Good companions for honeydew include corn, radishes, and marigolds, which can help with pest control and use space efficiently. Avoid planting near potatoes, which can compete for nutrients and may attract similar pests.

Growing in containers

Honeydew can be grown in containers, but it needs a large pot—at least 10 gallons per plant—and a trellis for the vines to climb. Use a rich, well-draining potting mix and water consistently, as container soil dries out faster than garden soil.

Pro tips

Start indoors 3-4 weeks before last frost. Thin to 24 inches. Harvest when the blossom end yields slightly to pressure and the melon smells sweet.