Rampart

Family: Apiaceae Root Vegetable

Aromatically rich and deeply satisfying, Rampart celeriac forms a bold, knuckled crown with a creamy, ivory interior that carries a sweet, nutty celery perfume.

Its smooth, well-balanced bulbs roast up beautifully for caramelized edges, while the tender flesh shines when sliced thin for crisp, refreshing salads and slaws. Grow Rampart for a dependable harvest at about 120 days, delivering a standout centerpiece for gratins, purées, and tangy pickles alike.

Light: Full SunMaturity: 120 DaysHabit: Upright

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Feb 14th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 11th
Harvest Begins	Aug 9th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	120
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	40
Min Night Temp (°F)	35
Harden Off (days)	6

Culinary Notes

Chef's Note

Rampart celeriac is built for heat—its creamy core turns luxurious while the rough outer surfaces caramelize for real, browned flavor. Use it thin and raw only when you want that sweet-nut celery snap; otherwise it thrives in gratins, purées, and vinegar-driven pickles.

Best Uses

hot roasting for caramelized edges (sheet-pan wedges)
silky purées and gratins where it replaces potato’s heft
thin-shaved salads and slaws to keep that crisp, peppery snap
tangy quick pickles that amplify the celery-sweet character

Flavor Profile

sweet, nutty celery perfume creamy ivory interior with a dense, knuckled bite roasty, caramelized edges when heated clean, crisp finish when shaved thin

Kitchen Pairings

mustard black pepper butter parmesan lemon apple cider vinegar

Frequently Asked Questions

What disease or pest commonly affects Apium graveolens var. rapaceum (celeriac), and what should I do?

Celeriac often suffers from foliar septoria leaf spot and other leaf-spot diseases, especially in warm, humid weather. Remove and discard infected leaves, improve airflow, and avoid overhead watering; if the problem keeps spreading, use a labeled fungicide approved for edible roots/leaf-spot on celery-family crops. Watch for aphids on new growth—rinse them off with a strong water spray and use insecticidal soap if they persist.

How often should I water celeriac (Apium graveolens var. rapaceum) during the main growing phase?

From when bulbs start forming until harvest (mid-season onward), keep the soil evenly moist but not soggy—aim for consistent moisture at about 2–3 cm depth. Water deeply when the surface crusts or dries, typically around 2–3 times per week depending on heat and soil texture, and reduce frequency only if you’re getting regular rain. Too little moisture causes stunted, woody roots, while waterlogging encourages rot.

How can I tell when celeriac (Apium graveolens var. rapaceum) is ready to harvest?

Harvest at about 120 days when the root is fully swollen and feels firm, with the surface forming a solid “knob” above the soil. Use a light scrape or partial lift to check size and firmness—if it’s still small or spongy, give it more time. The tops usually look thick and steady rather than rapidly wilting; pull before hard freezes for best eating quality.