Allsweet

Watermelon

Zone 1b Save Garden

🌱 85d to harvest Vine

Sweet, sun-warmed flavor bursts with classic picnic-watermelon charm in Allsweet—its crisp, juicy flesh delivers a clean, candy-l…

Crop Dates

Milestone	Date
Start Indoors	Jun 1st
Last Frost	Jun 1st
Transplant / Sow Outdoors	Jun 15th
Harvest Begins	Sep 8th
Harvest Ends	Aug 1st

Crop Details

Trait	Value
Days to Maturity	85
Sun Requirements	Full Sun
Growth Habit	Vine
Support Needed	Trellis
Planting Depth	Normal
Germination Temp (°F)	75
Min Soil Temp (°F)	70
Min Night Temp (°F)	55
Harden Off (days)	12

Recommended Companions

Peach Melba Nasturtium

Frequently Asked Questions

What should I do if my Allsweet melons develop powdery mildew?

Powdery mildew on Allsweet usually shows up as a white, dusty coating on older leaves around midseason. At the first signs, remove the most heavily affected leaves, water at the base (not over the foliage), and increase airflow by keeping the plant from crowding. If it keeps spreading, treat with a labeled horticultural fungicide for powdery mildew and repeat according to the label, since melons can lose leaf area quickly near ripening.

How often should I water Allsweet during the main growing phase?

During the main vine growth (roughly weeks 4–8 after emergence, leading toward flowering), keep the soil evenly moist but not soggy—about 1 inch of water per week total, split into 2–3 deep waterings depending on heat and soil type. Once the melons start forming and swelling, reduce to about 0.5–0.75 inch per week to avoid waterlogged roots and to help sweetness concentrate. Stop regular watering about 7–10 days before harvest so the fruit develops better flavor and the rind is less likely to split.

How can I tell when an Allsweet melon is ready to harvest?

Allsweet is typically ready around 85 days from sowing, but ripeness cues matter more than the calendar. Look for a creamy yellow ground color on the blossom end (not green), a sweet musky smell near the stem, and a slight softening around the stem area. The fruit should detach with gentle twisting—if it resists strongly, give it a few more days and recheck the color and aroma.

Sweet, sun-warmed flavor bursts with classic picnic-watermelon charm in Allsweet—its crisp, juicy flesh delivers a clean, candy-like sweetness from first bite to the last. The fruit is built for satisfying texture: firm yet tender, with a refreshing crunch and a bright, red interior that holds up beautifully for slicing and serving. Grow Allsweet for a reliable 85-day season and a showy, garden-to-picnic centerpiece that tastes as good as it looks.

Sowing Tips

Transplant Conditions

Wait until soil reaches 70°F and nights stay above 55°F before moving outdoors. Harden off for 12 days first.

Direct Sow Preferred

Sensitive roots — does not transplant well. If starting indoors, use biodegradable pots and disturb roots as little as possible when moving outdoors.

Expert Note

For best sweetness and size, grow in full sun with consistent watering early, then taper off as melons begin to ripen and use black plastic or mulch to warm the soil fast.