🥔 Monarch Celeriac
What it looks like
Why this variety
Monarch is the celeriac that trial growers keep recommending: about 110 days from transplant, with large, smooth, round roots — described as tankard-shaped, heavy, and exceptionally white-fleshed — with a mild, nutty taste and excellent storage. It was the best in one seed company’s trial of open-pollinated celeriacs, and its reputation for smooth roots matters, because a smooth celeriac peels in minutes while a knobbly one fights you for every gram.
Use it as celery root is meant to be used: grated raw into remoulade, simmered into soups, mashed with potatoes, or roasted until sweet. Monarch’s white, firm flesh is the reason celeriac lovers forgive the plant’s long season and fussy seedling stage — the root at the end is worth it.
If you are new to choosing between cultivars, the Varieties Matter guide explains why the name after the plant matters as much as the plant itself. And if you want the whole clan at a glance, the broader Celeriac guide covers celeriac generally.
How to grow
In Florida, Monarch is a fall-and-winter crop, best in the north: start seed indoors 10 to 12 weeks before transplanting, set plants out in fall, and harvest in winter. Celeriac is a cool-season biennial grown as an annual, and it wants a long, cool, moist season — Florida summer is not its season, and bolting from cold snaps is the risk to manage by transplanting at the right time, not too early.
Start indoors in trays, prick out when true leaves form, and transplant into rich, moist, compost-heavy soil. Keep the bed consistently moist from transplant to harvest — celeriac is a thirsty plant, and a dry spell gives you small, cracked, woody roots. Space as listed and mulch well.
Water & feeding
Water, water, water: celeriac is the thirstiest root in this guide, and it shows drought immediately in cracked, tough roots. Keep the soil consistently moist, mulch heavily, and feed with compost and a balanced side-dressing during the long season. It is a heavy feeder over a long season, so steady fertility beats a single feast.
Common problems
Bolting is the classic celeriac failure: exposure to cold below about 45 degrees for more than ten days can trigger flowering, so time transplants carefully and keep young plants warm. Celery leaf miner, slugs, and dry soil are the other usual troubles; steady moisture and mulch prevent most of them. Cracked roots mean uneven watering — the plant is telling you its schedule.
Harvest
Harvest when roots are firm and round, roughly tennis-ball to softball sized, from winter on. Trim leaves and rootlets, and store in cool, moist conditions — Monarch stores well, up to months in a root cellar or refrigerator, which is why it is a winter keeper rather than a use-it-or-lose-it crop.
Nerdy fact: Celeriac and celery are the same species, Apium graveolens, bred in opposite directions: celery for its stalks, celeriac for its swollen root — two vegetables from one plant, which is a neat reminder that breeding is just humans choosing which part of a plant to flatter.
Saving seeds
Monarch is the celeriac that trial growers keep recommending: about 110 days from transplant, with large, smooth, round roots — described as tankard-shaped, heavy, and exceptionally white-fleshed — with a mild, nutty taste and excellent storage. It was the best in one seed company’s trial of open-pollinated celeriacs, and its reputation for smooth roots matters, because a smooth celeriac peels in minutes while a knobbly one fights you for every gram. As an open-pollinated variety it comes true from seed: in Florida, start seed indoors 10 to 12 weeks before transplanting, set plants out in fall, and harvest in winter. The full method is in the Saving seeds section of the Celeriac guide.