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Brilliant celeriac seeds are easy to grow and harvest. The big white root has few external markings and grows vigorously. Flavour hovers between a mild celery and parsley and it has the consistency of a potato. Celeriac is surprisingly versatile and makes a fantastic puree that matches well with other root vegetables. Or try dicing some and adding to winter soups. Add some to stir-fries, or sliced thin in a scalloped or gratin dish. Try cutting some raw celeriac thinly in to matchsticks or small cubes, and pickling them in some sweet vinegar. The firm texture of pickled celeriac adds crunch and a bright flavour to salads and stews.
Matures in 110 days. (Open-pollinated seeds)
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Latin
Latin
Apium graveolens
Family: Apiaceae
Difficulty
Difficulty
Moderately challenging
Season & Zone
Season & Zone
Season: Cool season
Exposure: Full-sun
Timing
Timing
Start indoors in late winter to mid-spring. Optimal soil temperature: 15-24°C (60-75°F). Seeds take up to 20-30 days for germination.
Starting
Starting
Sow seeds no more than 5mm (¼”) deep, 3 seeds per pot, and thin to the strongest plant.
Days to Maturity
Days to Maturity
From transplant date.
Growing
Growing
Ideal pH: 6.0-6.5. Celery is a heavy feeder and needs rich, moist soil. Add compost to soil and apply ¼-½ cup of complete organic fertilizer per 1.5m (5′) of row. Transplant when seedlings are 10-12cm (4-5″) tall. Avoid transplanting until night time temperatures are reliably at 10°C (50°F) or warmer. Space transplants 30cm (12″) apart in rows at least 45cm (18″) apart. Water frequently. Premature bolting may result from young plants being exposed to temperatures below 13°C (55°F) for several days.
Harvest
Harvest
For best flavour and longer storage, water plants the day before harvest. Stalks on the outside of the plant can be harvested at any time. The entire plant may be harvested once the desired size is reached, but the home gardener should leave the plant in the garden and take only what is needed, leaving the root intact. If winter is not too cold, celery will stand in the garden until spring, allowing for light pickings for soups and salads.
Seed Info
Seed Info
In optimal conditions at least 55% of seeds should germinate. Usual seed life: 3 years.
Diseases & Pests
Diseases & Pests
Use floating row covers early in the season, and put up collars if cutworms are present.
Pests
Pests: Aphids, Whiteflies, Cutworms, Tarnished plant bug, and Cabbage loopers.
Diseases: Celery mosaic, Leaf blight, Black heart (calcium deficiency: add lime).
Companion Planting
Companion Planting
Celery is a good partner for beans, the Brassicas, cucumber, garlic, leek, lettuce, onion, and tomatoes.
More on Companion Planting.
West Coast Seeds is a family-owned company that embraces an organic lifestyle. A group of imagination catalysts and passionate educators, dedicated to producing products and services that better the environment. As part of our mission to repair the earth, we aim to inspire and empower people to take responsibility for the state of the planet. For us, organic is about much more than saying no to chemicals, it is about saying yes to building a healthy soil for the future.
For over 35 years, we have upheld our strong reputation as a leading seed supplier, seeking out the highest quality untreated seeds for organic growing and putting them through rigorous independent testing. We built our company on the exchange of generational wisdom in a masterclass community of newbies and masters alike. Our world may have changed, but our commitment to our people, our customers, and our planet has not.
We’re a values-based business that has blossomed into a lifestyle ethos, with products that support seeders, feeders, keepers, and the tiniest of creepers. Our mission? To mobilize the next generation of gardeners with products that nourish soil and grow vigorous, sustainable gardens. We believe all plants should be grown without the use of chemicals, and that the seeds we supply are an important component of regenerative gardening.
We don’t just offer seeds, we offer experience, insight, and understanding. From timeless garden wisdom to new tech know-how, this is learning on the job: knowledge gleaned not from the pages of a book but from burying our fingers in the soil. We test, experiment, observe and adapt, never happier than when we get to share what we’ve learned with others.
Gardens don’t just grow seeds. They grow minds and imaginations, people and communities. Our vision encompasses both the micro and the macro. We eat locally, protect pollinators, teach people to grow from seed, and support regional biodiversity. We think big but act small and deliver unexpected impact — always with community and purpose.
At West Coast Seeds we believe in the power of small and that little can be large. Like the tiniest seed germinates to evoke incremental change with massive potential, so to can our community of gardeners and growers together. Gardeners are the earth’s stewards, planting seeds of creative declaration. The soil provides the canvas, we provide the seeds.
Start indoors in late winter to mid-spring. Optimal soil temperature: 15-24°C (60-75°F). Seeds take up to 20-30 days for germination.
Sow seeds no more than 5mm (¼”) deep, 3 seeds per pot, and thin to the strongest plant.
Ideal pH: 6.0-6.5.
Celery is a heavy feeder and needs rich, moist soil. Add compost to soil and apply ¼-½ cup of complete organic fertilizer per 1.5m (5′) of row. Transplant when seedlings are 10-12cm (4-5″) tall. Avoid transplanting until night time temperatures are reliably at 10°C (50°F) or warmer. Space transplants 30cm (12″) apart in rows at least 45cm (18″) apart. Water frequently. Premature bolting may result from young plants being exposed to temperatures below 13°C (55°F) for several days.
Days to maturity: From transplant date.
In optimal conditions at least 55% of seeds should germinate. Usual seed life: 3 years.
For best flavour and longer storage, water plants the day before harvest. Stalks on the outside of the plant can be harvested at any time. The entire plant may be harvested once the desired size is reached, but the home gardener should leave the plant in the garden and take only what is needed, leaving the root intact. If winter is not too cold, celery will stand in the garden until spring, allowing for light pickings for soups and salads.
