Description
Solar Yellow Carrot
250 Seeds per pack
Days to Maturity: 60-80 days
Sun Requirements: Full sun; tolerates partial shade.
Botanical Name: Daucus carota
Solar Yellow is an open-pollinated Danvers-type heirloom with bright, buttery-yellow roots that grow 6–7″ long. These carrots are slightly sweeter than their orange cousins, with a crisp, juicy texture and mild flavor that makes them perfect for fresh eating, juicing, or cooking. Their sunny color holds well when cooked and adds cheerful contrast to salads, stir-fries, or mixed bunches with red, purple, white, or orange varieties.
This variety traces its origins to the Middle East, where yellow carrots were cultivated as early as the 14th century—long before the orange types became common. The color comes from xanthophyll, a natural pigment associated with eye health, giving these carrots both visual appeal and nutritional value.
Carrots are easy to grow and low-maintenance, needing only thinning, regular watering, and weed control. Solar Yellow prefers cool-season growing conditions and tolerates light frost, making it a good option for spring and fall plantings. Plants reach about 4–8″ tall and produce well in most garden soils.
A fine choice for gardeners looking to grow something a little different, Solar Yellow offers sweetness, dependable yields, and a splash of color to the garden!
Planting Instructions for Solar Yellow Carrot Seeds
When to Plant:
Direct sow Solar Yellow carrot seeds outdoors 2 to 3 weeks before your last expected spring frost, once the soil reaches at least 50°F (10°C). Solar Yellow grows best in cooler temperatures and can be planted again in late summer—about 10 weeks before your first fall frost—for a sweeter, fall-harvested crop. For staggered harvests, continue sowing small batches every 3 to 4 weeks during the main season. Avoid transplanting, as disturbed roots can grow misshapen.
Where to Plant:
Choose a site in full sun with light, loose, stone-free soil. Solar Yellow thrives in well-drained, fertile soil and benefits from a deeply prepared seedbed. Avoid beds that were recently amended with fresh manure, which can cause forking. A soil pH of 6.0 to 6.8 is ideal. Before planting, loosen the soil deeply and mix in well-aged compost.
How to Sow:
Sow Solar Yellow seeds ¼” deep and 1″ apart in rows spaced 12 to 18 inches apart. The seeds are tiny—try mixing them with sand to distribute them more evenly. Cover with ⅛” to ¼” of sifted compost or fine soil, not coarse dirt. Press down gently and keep the surface moist. For best results, cover rows with burlap or shade cloth until the seeds sprout. Germination may take 7 to 21 days depending on soil temperature and moisture.
Watering:
Solar Yellow seeds need consistent moisture to germinate properly. Use a fine mist spray or a micro-spray system to avoid displacing seeds. Once established, water about 1 inch per week. When carrots begin to size up, increase watering to 2 inches per week to encourage root development. Avoid inconsistent watering, which can cause roots to split. Always water at the soil level—avoid overhead sprinklers that may promote disease.
Fertilization:
Before sowing, mix in 2–3 inches of compost or well-rotted organic matter. Avoid nitrogen-rich fertilizers, which encourage leafy growth at the expense of root development. Once tops are about 4 inches tall, side-dress with a balanced organic fertilizer or compost tea. Avoid adding extra phosphorus unless your soil is deficient, as it may lead to split or misshapen roots.
Mulching:
Once seedlings are 1–2 inches tall, add a layer of mulch to retain moisture, suppress weeds, and keep soil temperatures consistent. Use straw, shredded leaves, or dried grass clippings. Avoid using fresh clippings, which release too much nitrogen too quickly and can lead to forked roots. Let clippings dry for a few days before applying in a thin layer. Mulch also helps keep carrot shoulders from turning green from sun exposure. In early spring, black plastic mulch can warm the soil and speed up germination.
Thinning:
Thin Solar Yellow seedlings when they are 1–2 inches tall to about 2–3 inches apart. Use scissors to snip the tops at soil level rather than pulling, which can disturb nearby roots. Proper spacing allows Solar Yellow to grow straight and uniform.
Pest & Disease Management:
Solar Yellow is vulnerable to the same pests as other carrots, including carrot rust fly, weevils, nematodes, and leafhoppers. To prevent damage, use floating row covers from planting until harvest, and avoid disturbing the foliage when weeding, as its scent can attract pests. Rotate crops yearly, and don’t plant carrots in the same area more than once every three years. Keep the bed free of weeds and debris. For nematodes, avoid planting in infected soil and consider interplanting with French marigolds.
Common Diseases:
This variety may be affected by powdery mildew, leaf blights, and root canker. Ensure good air flow by thinning and avoiding overcrowding. Water early in the day and avoid wetting the foliage. Remove any infected plants immediately to prevent spread.
Harvesting:
Solar Yellow is typically ready to harvest 60 to 80 days after planting. Begin pulling when roots are about 6 to 7 inches long. These Danvers-type carrots have bright yellow skin, juicy texture, and a sweet, mild flavor. Loosen soil with a fork before pulling to avoid breakage. Trim tops to ½–1 inch after harvest.
Storage:
Store freshly harvested Solar Yellow carrots in the refrigerator for up to two weeks. For longer storage, leave them in the ground under mulch and harvest as needed, provided your soil doesn’t freeze. Alternatively, store in damp sand or sawdust in a root cellar. Solar Yellow also preserves well by freezing, canning, or dehydrating.
Freezing:
Wash, peel, and cut Solar Yellow carrots into slices or small pieces. Blanch in boiling water for 2 minutes (or 5 minutes for whole carrots), then transfer immediately to an ice bath. Once cooled, drain thoroughly and spread in a single layer on a parchment-lined baking sheet. Freeze until firm, then pack into freezer bags or containers. Label and store in the freezer for up to 12 months.
Canning:
Use a pressure canner. Wash, peel, and cut Solar Yellow into slices or small chunks. Raw pack or hot pack (simmer 5 minutes). Fill clean jars with carrots and boiling water, leaving 1 inch headspace. Optional: add 1 tsp canning salt per quart. Remove air bubbles, wipe rims, and seal. Process in a pressure canner based on your altitude. Cool completely and check seals after 24 hours.
Dehydrating:
Wash, trim, and peel if desired. Slice or dice carrots, blanch for 2 minutes, and cool in ice water. Drain and arrange in a single layer on dehydrator trays. Dry at 125°F (52°C) for 4–12 hours, until brittle or leathery. Let cool fully before storing in airtight containers in a cool, dark, dry place.
Seed Saving:
Solar Yellow is a biennial variety. Leave healthy carrots in the ground or replant them to overwinter. In year two, they’ll flower and produce seed. Isolate by at least ½ mile from other carrot types or use row covers to prevent cross-pollination. Collect and store dried seed in a cool, dry place. Properly saved Solar Yellow seeds remain viable for 2–4 years. We offer pre-labeled seed-saving envelopes to help you stay organized.
FAQ:
How long do Solar Yellow carrots take to grow?
Solar Yellow carrots mature in 60 to 80 days, depending on weather, soil, and spacing. Harvest when roots are 6–7″ long and deep yellow in color.
When is the best time to plant Solar Yellow carrot seeds?
Plant Solar Yellow in early spring, 2–3 weeks before your last frost, or again 10 weeks before your first fall frost for a sweeter autumn crop. Avoid summer sowings during hot weather.
Do Solar Yellow carrots need full sun?
Yes, Solar Yellow prefers full sun, though it tolerates partial shade. For best color, shape, and sweetness, choose a bright, sunny location with loose, fertile soil.
What do Solar Yellow carrots taste like?
They have a slightly sweeter, milder flavor than orange carrots, with a crisp, juicy texture that makes them ideal for fresh eating, roasting, juicing, or stir-frying.
Can I grow Solar Yellow carrots in containers?
Yes, if the container is at least 10–12″ deep with light, well-drained soil. Choose a deep pot, thin seedlings properly, and keep soil consistently moist.
Where does Solar Yellow carrot come from?
This variety has deep roots—originally cultivated in the Middle East, yellow carrots like Solar Yellow were grown centuries before orange ones became common.
What makes Solar Yellow carrots yellow?
Their sunny color comes from xanthophyll, a natural plant pigment that supports eye health and gives these roots their distinctive buttery-gold appearance.
How do I prevent pests and disease on Solar Yellow carrots?
Use floating row covers, practice crop rotation, and avoid disturbing the foliage. Solar Yellow can be susceptible to carrot rust fly, nematodes, and leaf blight, so weed control and air circulation are a good preventative measure.
How should I harvest and store Solar Yellow carrots?
Harvest when roots are 6–7″ long. Loosen soil with a fork and trim tops to ½–1″. Store in the fridge for up to 2 weeks or in damp sand, mulch, or a root cellar for longer storage.
Clint M. (verified owner) –
Excellent germination
Linda Traynor (verified owner) –
For next year.