Atomic Red

Carrot

75d to harvest

Sweetly aromatic and richly colored, Atomic Red carrots bring a vivid, true-red harvest with a crisp, fine-grained bite. Danvers type roots are classically tapered with a smooth, even surface, ideal for turning out uniform, market-ready carrots from garden rows. Grow Atomic Red for fresh snacking, roasting to caramel-sweet depth, and vibrant color in salads, slaws, and sauces—its flavor stays bright from first pull to the last bite.

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	May 15th
Transplant / Sow Outdoors	May 15th
Harvest Begins	Jul 29th
Harvest Ends	Sep 1st

Crop Details

Trait	Value
Days to Maturity	75
Sun Requirements	Full Sun
Growth Habit	Taproot
Support Needed	None
Planting Depth	Surface
Germination Temp (°F)	75
Min Soil Temp (°F)	45
Min Night Temp (°F)	28
Harden Off (days)	Not Required

Frequently Asked Questions

What should I do if my Atomic Red radishes develop frosty white spots or leaf distortion?

This often points to powdery mildew (and sometimes stress-related distortion) in dense foliage. Remove and discard badly affected leaves, then improve airflow by thinning plants to about 2–3 inches apart and keeping weeds down so leaves dry faster. If it keeps spreading, spray an approved potassium bicarbonate or sulfur-based fungicide according to the label and reapply at the label interval.

How often should I water Atomic Red radishes during the main growing period (weeks 2–6)?

Keep the soil consistently evenly moist—aim for about 1 inch of water per week, but adjust so the bed never fully dries out or turns muddy. Check moisture by pressing a finger 1 inch into the soil; water right away if it feels dry, and water more lightly/more frequently after long dry stretches. Inconsistent moisture is a common cause of pithy, woody roots and hot, bitter flavor.

How do I tell when Atomic Red radishes are ready to harvest?

Atomic Red is typically ready about 75 days after sowing, but start checking much earlier—look for roots pushing up at the soil line and a bright red color. Harvest when roots reach about 1 to 1.5 inches across (check by gently pulling one plant), because radishes get pithy if left too long. For best texture, harvest during cool weather and refrigerate right away.