Giant Prague Celeriac

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Giant Prague Celeriac is a flavorful twist on a classic root vegetable! Also known as Celery Root, this white, knob-shaped, tender, aromatic root has flavorful stalks, leaves, and blades that are aesthetically elegant and bright. This ingredient has been favored among European chefs; it can be mashed into Celery Root puree, sliced into soups and casseroles, and used as a garnish. The root, leaves, and stalks are all edible and have a distinctive mild, nutty, and celery-like flavor that is used to add depth and aroma to soups, stews, purees, and roasts. Harvest when knobs are 4"-5" in diameter or tear leaves and stalks as need for a touch of European flair.

Also Known As: Celery Root, Turnip-Rooted Celery, Knob Celery, Root Celery, Celery Knob, Celery Tuber, Turnip-Root Celery, German Celery, Sellerie-Knolle


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Plant Name:
Celeriac, Giant Prague
Latin Name:
Apium graveolens var. rapaceum
Days to Germinate: 9-21
Days to Harvest: 110
Germination Rate: 85%
Test Date: 8/24
Growth Habit: Upright
USDA Zones: 3-12
Lifespan: Annual
Brand: TomorrowSeeds
Sunlight: Full Sun, Partial Shade
GMO: No
Pollination:
Heirloom, Open-Pollinated
Fungicide-Treated Seeds:*: No
Seeds Packed For**: 2025

*Fungicide-treated seeds protect the seedlings from diseases until they are up and growing. Do not eat treated seeds.
**Seeds are freshly packed for the growing season of the year listed. Seeds are still viable beyond pack date. Store in a cool and dry location such as the refrigerator or basement to best preserve germination rates.


Planting Instructions:

 

Soil Preparation:

To prepare soil, remove weeds, large rocks, and litter from the planting area. Leave small weeds and dead grass, they will enrich the soil when turned under. Spade the soil 8-12 inches deep and turn each shovel of soil over completely to cover the plant materials with soil. You may add fertilizer or 2-3 inches of organic material such as compost, leaves, or rotted hay over the planting area at this point. Till to mix this organic material into the top 8-10 inches of soil. Make rows of soil beds 4-6 inches high and at least 2 feet apart. This formation of ridges will help with drainage. Grows best in moist soil rich in organic matter.
 

Planting:

Start indoors 10 weeks before the last average frost in Spring then transplant seedlings when 4" - 5" tall in at least 55F temperatures. Transplant outdoors when day temperatures are stay above 55° and night temperatures are above 40F. Or, directly sow in at least 55F soil in Spring, or late Summer/Fall, in loose, fertile, moist, well-draining soil in full sun if planting in a cloudy climate or in partial shade if in hot climates. Plant seeds in a single seed line in 2-foot apart raised beds at inches apart at 1/8 inch depth. Apium seeds need light to germinate, so barely cover the seed. Soil temperature for best germination is 70F and soil temperature for best growth is 60F-70F. Keep weed free and water as needed to keep soil moist but not soggy. Mulch may be used to keep the shoulders of the root bulbs covered. Plant in rich soil that has been amended with a good amount of rich organic matter.


Planting Depth: 1/8 inch
Within-Row Spacing:
6-8 inches
Between-Row Spacing:
24 inches

 

Care During the Season:

Watering: Water the plants enough to keep from wilting, about every 5-7 days.
 
Weeding: Keep plants as weed-free as possible. When plowing or hoeing try to prevent cutting the feeder rooters which may slow the plant's growth.

Fertilizing: You may optionally add scatter 1/2 a pound of a complete fertilizer for each 100 square feet of garden area. Work into the soil and leave the surface smooth. For small gardens, use 1 tablespoon of fertilizer for each hill. Scatter the fertilizer evenly over a 2 foot by 2 foot area. work it into the top 2-3 inches of soil.

Insecticides: Insecticides may be used to protect plants. Bt-based insecticides and sulfur are organic options that can be used for prevention. Sulfur also has fungicidal properties and helps in controlling many diseases. Before using a pesticide, read the label and always follow cautions, warnings and directions.

Diseases: Check the plants daily and if spots or mold appear, treat the plant with an approved fungicide. Neem oil, sulfur, and other fungicides may be used. Please always follow label directions.
 

Harvesting:

Harvest Celeriac bulbs when they are at least 2" in diameter, or after the first frost for best flavor when bulbs reach 3" - 4" in diameter. Dig up bulbs and remove leaf shoots for a smooth root crown. Clean and allow to dry. Store Celeriac at 32F at high humidity for best storage.


Nutrition Facts:

Celeriac, raw
Calories 65
% Daily Value*
Total Fat 0.4 g 0.5%
Saturated fat 0 g 0%
Cholesterol 0 mg 0%
Sodium 156 mg 6%
Potassium 468 mg 14%
Total Carbohydrate 14 g 5%
Dietary fiber 2.8 g 10%
Sugar 2.5 g 3%
Protein 2.3 g 5%
Vitamin C 14% Calcium 5%
Iron 6% Vitamin D 0%
Vitamin B6 15% Cobalamin 0%
Magnesium 7%
*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.