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Vegetable
Apiaceae
Les jardins de l'écoumène
Apium graveolens ‘Géant de Prague’
Apium graveolens var. rapaceum
The organic celeriac ‘Géant de Prague' is a long-established variety that immediately inspires confidence in its vigour, regularity and rustic elegance at the vegetable garden. Grown for its large, rounded roots with firm white flesh and a delicate aroma, celeriac provides a quiet but valuable presence through the growing season. Its slow growth calls for patience from the gardener, but the reward is a generous harvest of roots that are well suited to comforting autumn and winter dishes. It needs rich, deep soil with consistent moisture around the roots to develop fully without water stress interrupting its growth. By letting some plants complete their cycle, its umbel bloom becomes very attractive to pollinators and many useful insects.
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Discover the plant
Common nameGéant de Prague Celeriac
FamilyApiaceae
GenusCelery
Speciesrank-smelling
CultivarPrague Giant
TypeVegetable
Botanical nameApium graveolens var. rapaceum
Reproducible seedsYes
Heirloom varietyYes
Apium graveolens ‘Géant de Prague’ — Géant de Prague Celeriac. The organic celeriac ‘Géant de Prague' is a long-established variety that immediately inspires confidence in its vigour, regularity and rustic elegance at the vegetable garden. Grown for its large, rounded roots with firm white flesh and a delicate aroma, celeriac provides a quiet but valuable presence through the growing season. Its slow growth calls for patience from the gardener, but the reward is a generous harvest of roots that are well suited to comforting autumn and winter dishes. It needs rich, deep soil with consistent moisture around the roots to develop fully without water stress interrupting its growth.
Recommended planting period: early spring. The depth to be respected is 0.5 cm (0.2 in.). Germination usually takes 7 to 20 days. For germination, keep the soil at 15 to 24°C (59 to 75°F). Start celery indoors, as its small celeriac seeds and slow early growth require careful attention while the young plants develop. Distribute the seeds over fine-textured potting mix and maintain consistent moisture throughout the germination period. The young seedlings need light as soon as they emerge from the growing medium. Transplant without burying the growing centres, then gradually harden off the plants before setting them into soil that has warmed sufficiently.
Cultivating ‘Géant de Prague' means bringing into the garden a great classic, reliable and tasty, whose harvest accompanies home cooking for long months. Give celery a section of the garden with rich soil that you can easily reach for regular watering. Leave the large leaf stalks easy to reach so that you can harvest them cleanly. In a mixed vegetable bed, position lettuce or radishes along the edge, leaving enough distance for the celery plants to receive the light they need. Use this crop’s need for consistent moisture to guide your choice of plants to grow alongside it.
In the garden
- Exposure
- Full sun
- Life cycle
- Biennial grown as an annual for harvest
Sowing guide
Sowing & germination
Sowing depth
0.5 cm (0.2 in)
Germination temperature
15 to 24°C (59 to 75°F)
Germination time
7 to 20 days
Sowing period
Early Spring
Propagation
From seed
Growing method
Recommended planting period: early spring. The depth to be respected is 0.5 cm (0.2 in.). Germination usually takes 7 to 20 days. For germination, keep the soil at 15 to 24°C (59 to 75°F). Start celery indoors, as its small seeds and slow early growth require careful attention while the young plants develop. Distribute the seeds over fine-textured potting mix and maintain consistent moisture throughout the germination period. The young seedlings need light as soon as they emerge from the growing medium. Transplant without burying the growing centres, then gradually harden off the plants before setting them into soil that has warmed sufficiently. When celery experiences a period of dry soil, its growth slows and the harvested stalks lose some of their tenderness. Water consistently enough to maintain moisture, without allowing the soil to remain saturated. A layer of mulch placed around the plants helps the soil retain an even supply of moisture. Remove any damaged leaves and inspect the base of the leaf stalks as the plants develop. Remove the outer ribs or harvest the plant according to the size desired. Harvest the celeriac when the swollen base of the plant has reached the size you want for use in the kitchen. A delicate extraction of the soil helps to clear the swollen part without damaging it. Remove the soil and the small roots before preparing the bulging part in the kitchen.
Soil and care
Soil & care
Watering
Celery requires fresh soil regularly during its growth. Water before the root zone dries completely and wet the soil on the foot, without keeping it saturated. A mulch can stabilize moisture, leaving the base of the plant unobstructed. For container-grown plants, monitor the soil more often during hot or windy periods. After a rain, check the actual humidity before starting again. Followed applications are better suited than alternating drought and excess water.
Soil type
Prepare a rich, deep and constantly moist soil. Start celery indoors, as its small seeds and slow early growth require careful attention while the young plants develop. Distribute the seeds over fine-textured potting mix and maintain consistent moisture throughout the germination period. The young seedlings need light as soon as they emerge from the growing medium. Transplant without burying the growing centres, then gradually harden off the plants before setting them into soil that has warmed sufficiently.
Fertilization
Fertilization supports growth and should take into account the nutrients already present in the soil or potting mix. Use mature compost or a fertilizer suitable for the crop, following the recommended application rate. Avoid combining too many products, especially in a container where the roots have a limited volume of growing medium. Water as needed after applying nutrients, and observe foliage growth before deciding whether another fertilizer application is necessary.
Moisture
Keep the growing mix moist during germination, without standing water; then adjust to the crop
Seasonal care
Its slow growth calls for patience from the gardener, but the reward is a generous harvest of roots that are well suited to comforting autumn and winter dishes. Start celery indoors, as its small seeds and slow early growth require careful attention while the young plants develop. Distribute the seeds over fine-textured potting mix and maintain consistent moisture throughout the germination period. The young seedlings need light as soon as they emerge from the growing medium. Transplant without burying the growing centres, then gradually harden off the plants before setting them into soil that has warmed sufficiently. When celery experiences a period of dry soil, its growth slows and the harvested stalks lose some of their tenderness. Water consistently enough to maintain moisture, without allowing the soil to remain saturated. A layer of mulch placed around the plants helps the soil retain an even supply of moisture. Remove any damaged leaves and inspect the base of the leaf stalks as the plants develop. Remove the outer ribs or harvest the plant according to the size desired. Harvest the celeriac when the swollen base of the plant has reached the size you want for use in the kitchen. A delicate extraction of the soil helps to clear the swollen part without damaging it. Remove the soil and the small roots before preparing the bulging part in the kitchen. Rinse the harvest just before use or dry it thoroughly before a short stay in the refrigerator. Grown for its large, rounded roots with firm white flesh and a delicate aroma, celeriac provides a quiet but valuable presence through the growing season. The organic celeriac ‘Géant de Prague' is a long-established variety that immediately inspires confidence in its vigour, regularity and rustic elegance at the vegetable garden.
Container growing
Container growing
Suitable for containers
Yes
Recommended pot size
A stable container with drainage holes, enough width for the plant’s spread and sufficient depth for its roots
Choose a location in full sun. Reserve this spread around the plant: 60 cm (24 in.). Growing celery in a container calls for a sufficient volume of potting mix that retains moisture around the roots between one watering and the next. Place the bin in an accessible place, because a small forgotten pot dries quickly in summer. Keep the heart above the soil and leave room between the plants. Water slowly until the entire root ball is moistened, then allow the excess to flow. The organic celeriac ‘Géant de Prague' is a long-established variety that immediately inspires confidence in its vigour, regularity and rustic elegance at the vegetable garden. Grown for its large, rounded roots with firm white flesh and a delicate aroma, celeriac provides a quiet but valuable presence through the growing season. Its slow growth calls for patience from the gardener, but the reward is a generous harvest of roots that are well suited to comforting autumn and winter dishes. It needs rich, deep soil with consistent moisture around the roots to develop fully without water stress interrupting its growth. By letting some plants complete their cycle, its umbel bloom becomes very attractive to pollinators and many useful insects. Check drainage holes regularly.
Bloom and dimensions
Size, flowering & harvest
Mature height
60 cm (24 in.)
Width / spread
60 cm (24 in.)
Foliage type
Seasonal foliage
Bloom period
This plant normally forms its flowers during a cycle subsequent to that of the first vegetable harvest. For the production of leaves, bulbs or roots, flowering is not the desired stage. Bolting before the intended harvest can reduce the tenderness of the parts you plan to eat. Keep plants intended for seed production separate from those grown for harvest, allowing enough room for their developing flower stems.
Fruiting
Grown for its large, rounded roots with firm white flesh and a delicate aroma, celeriac provides a quiet but valuable presence through the growing season. Its slow growth calls for patience from the gardener, but the reward is a generous harvest of roots that are well suited to comforting autumn and winter dishes. Harvest the celeriac when the swollen base of the plant has reached the size you want for use in the kitchen.
Harvest
110 days after sowing
Garden associations
Companion plants & uses
Companion plants
In a mixed planting, you can reserve sections close to these plants: leek, cabbage, tomato, bean. The association is used here to organize space and crops. Allow for the height, light requirements and water needs of each plant, leaving enough room between the foliage. Keep a path clear for watering and harvesting, then remove finished crops to make room for the next planting. This arrangement makes maintenance easier without promising protection against garden pests. Give celery a section of the garden with rich soil that you can easily reach for regular watering.
Garden use
Grown for its large, rounded roots with firm white flesh and a delicate aroma, celeriac provides a quiet but valuable presence through the growing season. Its slow growth calls for patience from the gardener, but the reward is a generous harvest of roots that are well suited to comforting autumn and winter dishes. The organic celeriac ‘Géant de Prague' is a long-established variety that immediately inspires confidence in its vigour, regularity and rustic elegance at the vegetable garden. It needs rich, deep soil with consistent moisture around the roots to develop fully without water stress interrupting its growth.
Recipe idea
From garden to table
Edible parts
Swelled part at the base of the plant, petioles and leaves
Recipe idea using Géant de Prague Celeriac: vegetable stir-fry for four servings. Prepare 400 g of the harvested part, a clove of garlic, 15 ml of oil and 30 ml of water. Cut stems, leaf ribs or other firm parts into small pieces, and set the leaves aside to add separately. Heat the oil, sauté the garlic without burning it, then add the firm pieces and water. Cover for a few minutes. Then add the leaves or other tender parts and continue cooking until they reach the texture you prefer. Season to taste and serve hot. Prepare the ingredients with clean utensils and adapt the cut to the size of your harvest. This recipe highlights freshly picked parts: remove damaged pieces before preparation. If you double the quantities, keep enough space in the dish to mix or cook evenly. Quickly place leftovers in the refrigerator in a closed container and consume them within two days. For a two-person meal, simply divide all quantities by two.
Frequently asked questions
Frequently asked questions
How do I grow Géant de Prague Celeriac from seed?
Recommended planting period: early spring. The depth to be respected is 0.5 cm (0.2 in.). Germination usually takes 7 to 20 days. For germination, keep the soil at 15 to 24°C (59 to 75°F). Start celery indoors, as its small seeds and slow early growth require careful attention while the young plants develop. Distribute the seeds over fine-textured potting mix and maintain consistent moisture throughout the germination period. The young seedlings need light as soon as they emerge from the growing medium. Transplant without burying the growing centres, then gradually harden off the plants before setting them into soil that has warmed sufficiently. When celery experiences a period of dry soil, its growth slows and the harvested stalks lose some of their tenderness.
Can I grow Géant de Prague Celeriac in a container?
Choose a location in full sun. Reserve this spread around the plant: 60 cm (24 in.). Growing celery in a container calls for a sufficient volume of potting mix that retains moisture around the roots between one watering and the next. Place the bin in an accessible place, because a small forgotten pot dries quickly in summer. Keep the heart above the soil and leave room between the plants. Water slowly until the entire root ball is moistened, then allow the excess to flow. The organic celeriac ‘Géant de Prague' is a long-established variety that immediately inspires confidence in its vigour, regularity and rustic elegance at the vegetable garden. Grown for its large, rounded roots with firm white flesh and a delicate aroma, celeriac provides a quiet but valuable presence through the growing season.
When can I harvest Géant de Prague Celeriac?
Grown for its large, rounded roots with firm white flesh and a delicate aroma, celeriac provides a quiet but valuable presence through the growing season. Its slow growth calls for patience from the gardener, but the reward is a generous harvest of roots that are well suited to comforting autumn and winter dishes. Harvest the celeriac when the swollen base of the plant has reached the size you want for use in the kitchen. A delicate extraction of the soil helps to clear the swollen part without damaging it. Remove the soil and the small roots before preparing the bulging part in the kitchen. Rinse the harvest just before use or dry it thoroughly before a short stay in the refrigerator.
What makes Géant de Prague Celeriac distinctive in the garden?
The organic celeriac ‘Géant de Prague' is a long-established variety that immediately inspires confidence in its vigour, regularity and rustic elegance at the vegetable garden. Grown for its large, rounded roots with firm white flesh and a delicate aroma, celeriac provides a quiet but valuable presence through the growing season. Its slow growth calls for patience from the gardener, but the reward is a generous harvest of roots that are well suited to comforting autumn and winter dishes. It needs rich, deep soil with consistent moisture around the roots to develop fully without water stress interrupting its growth. By letting some plants complete their cycle, its umbel bloom becomes very attractive to pollinators and many useful insects.
How do I arrange a planting of Géant de Prague Celeriac?
Give celery a section of the garden with rich soil that you can easily reach for regular watering. Leave the large leaf stalks easy to reach so that you can harvest them cleanly. In a mixed vegetable bed, position lettuce or radishes along the edge, leaving enough distance for the celery plants to receive the light they need. Use this crop’s need for consistent moisture to guide your choice of plants to grow alongside it. When celery experiences a period of dry soil, its growth slows and the harvested stalks lose some of their tenderness. Water consistently enough to maintain moisture, without allowing the soil to remain saturated. A layer of mulch placed around the plants helps the soil retain an even supply of moisture. Remove any damaged leaves and inspect the base of the leaf stalks as the plants develop.
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