Spring Growing Guides
Carrot Growing Guide
|Seed Depth||Seed Spacing||Soil Temp for Germ.||Days to Germ.||Thin Plants To||Approximately 650-750 seeds per gram.|
|1/4″||4 per in.||55-80°F||6-21||1-3″|
Daucus carota var. sativus:
Studies on the nutritional properties of carrots have revealed that they are powerhouses of a wide range of phytonutrient antioxidants. With the vast spectrum of colors and varieties available, the amounts of individual antioxidants vary, yet the overall balance of these potent nutrients contributes to outstanding health benefits regardless of the variety.
CULTURE: The key to good carrot production is soil preparation. When the soil is somewhat dry, spade or till it to a fine texture 12–16 inches deep. Avoid the temptation to work the soil when it's too wet. Cloddy ground will not make smooth straight roots. Work in lots of composted organic matter, as this will help your soil maintain a very loose condition for uniform root development. Avoid fresh manure or excess nitrogen fertilizer which can cause forks, splits, and rough hairy roots. Optimum pH range for carrots is 5.5–7.0.
Direct sow March through July. Consider making your last sowing an overwintering variety. Sow the seeds thinly in rows 12–16 inches apart. Cover the seed with vermiculite or sifted compost. This prevents crusting and helps retain moisture. Mix 1/4 teaspoon of seed in a gallon of sand or vermiculite to uniformly sow 30–50 row feet. Maintain an even soil moisture level at all times. Thin carefully to get the most uniformly sized roots. When the plants have 7–10 leaves, hill 1–2 inches of soil around the crowns to prevent green shoulders.
INSECTS: Carrot fly maggots can be controlled by covering the rows with insect barrier fabric at planting.
DISEASE: Carrots are subject to various blights; practicing a 3-year crop rotation and proper sanitation can prevent most problems.
HARVEST: Carrots are best harvested any time their color is bright. This is when their flavor and texture are optimum. Irrigate well prior to harvest to ensure the roots have absorbed their maximum capacity of water. Store at 34°F and 95% relative humidity.
SEED SPECS: Minimum germination standard: 75%. Usual seed life: 3 years.
What is pelleted seed?
Seed that has been coated with a clay-based material to form a larger, round shape. This makes planting by hand or mechanical seeder easier and allows for more controlled sowing of small seeds such as carrots or lettuce. All pelleted seed has a National Organic Program (NOP) approved coating.
Key to Carrot Disease Resistance/Tolerance
HR indicates high resistance.
IR indicates intermediate resistance.
AB | Early (Alternaria) Blight
AS | Alternaria Stem Canker
C | Cercospora
P | Phythium Root Rot
PM | Powdery Mildew