Start indoors 4-6 weeks before last frost, plant out 3 weeks before frost. For fall harvest, transplant 13 weeks before first frost, without additional protection. In a hoophouse, you can plant 2-3 weeks later. Harvest from the bottom of the stem up. Will over winter in most areas. Collards are most tender and delicious after frost. Waxy leaf surface reduces cabbage worms, row cover at transplant if needed. Harvest leaves from the bottom up, cool quickly, dunk in cold water to wash, store at 32˚F. Soil pH 5.0-8.5. Hardiness zones 7. Biennial.
Days from maturity calculated from the date of seeding. Average 7,000 seeds per ounce. Average 112M seeds per acre. Federal germination standard: 80%. Usual seed life: 5 years. Isolation distance for seed saving: 1 mile.
Planting Depth
1/4-1/2”Soil Temp. Germ.
50-75˚FDays to Germ.
3-10Plant Spacing
18-24”Row Spacing
24-36”Days To Maturity
75Full Sun,
Moist Well Drained