Merengo

Family: Apiaceae Root Vegetable

Aromatic and deeply satisfying, Merengo celeriac forms an elegant, knobbly crown with a creamy, ivory interior and a crisp, fine-grained bite.

Its flavor is bold yet refined—earthy celery depth with a gentle sweetness—making it a standout for roasting, purees, and velvety sauces, as well as for fresh grating. Grow Merengo for a long, steady season that rewards patience with a harvest-ready root at about 120 days, ideal for the home gardener who loves distinctive, garden-grown character.

Light: Part 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 18th
Harvest Begins	Aug 16th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	120
Sun Requirements	Part Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	45
Min Night Temp (°F)	35
Harden Off (days)	7

Culinary Notes

Chef's Note

Merengo’s knobbly root turns luxuriously creamy when roasted or simmered, with celery’s signature snap underneath instead of disappearing. It’s the kind of celeriac that holds its flavor in a velvety puree or a hot sauce, and still gives a crisp, aromatic bite when grated raw.

Best Uses

roasted wedges or batons until caramelized at the edges, then smashed for a spoonable side
silky celeriac puree to anchor rich mains—smooth without tasting gluey
velvety celeriac velouté or cream sauce that clings to pasta
fresh grating for snappy salads with acidic dressings

Flavor Profile

bold celery-earthiness gentle sweetness creamy, ivory interior texture crisp, fine-grained bite when fresh aromatic, clean finish

Kitchen Pairings

potato butter parmesan lemon black pepper chicken stock

Frequently Asked Questions

What disease or pest commonly affects celery root (Apium graveolens var. rapaceum), and how can I control it?

Celery root is especially prone to early blight/leaf blights (often starting on older leaves) and may also suffer from celery leaf spot—look for dark spots that spread and yellowing. Remove and discard affected tops immediately, keep the foliage dry by watering at the soil line, and rotate beds so Apiaceae aren’t grown in the same spot for at least 3 years.

How often should I water celery root during its main growth phase (after thinning/establishment)?

During the main bulbing stage, keep soil consistently evenly moist—aim for about 1–1.5 inches (2.5–4 cm) of water per week, adjusting for heat and rain. If the soil dries out between waterings, the swollen roots can split or become pithy, so use mulch and water deeply to reach the root zone rather than frequent light sprinkling.

How do I know when celery root is ready to harvest (Apium graveolens var. rapaceum)?

Harvest when the “bulb” at the soil surface reaches a good size and the plant shows early natural decline, typically around 120 days from sowing. A practical cue is that the root should feel firm and substantial, and the leaves begin to yellow—lift before hard freezes to avoid quality loss.