Name: Sibilla Swiss Chard Seeds
Brand: Weston
Price: 3.99 CAD
Availability: InStock

Sale Sold out

Sibilla Swiss chard with an upright rosette of slightly blistered dark green leaves and broad, glossy white stalks. This Italian variety is grown for edible leaves and stalks in vegetable gardens, raised beds and large containers.

Vegetable seeds Amaranthaceae

Weston

Beta vulgaris var. cicla

From seed to harvest

Open-pollinated

Common nameSwiss chard

FamilyAmaranthaceae

GenusBeta

Speciesvulgaris var. cicla

CultivarSibilla

TypeVegetable seeds

Botanical nameBeta vulgaris var. cicla

Reproducible seedsYes

Quantity per packet200 to 230 seeds

Sibilla Swiss Chard Seeds (Beta vulgaris var. cicla) is an Italian variety with an upright habit, slightly blistered dark green leaves and broad, glossy white stalks. Variety catalogues describe moderate vigour and good resistance to bolting, useful traits for producing consistent bunches in spring and summer. Although grown as an annual in the vegetable garden, Swiss chard is botanically biennial. Both the leaves and stalks are edible, but it does not develop the swollen root harvested from beets. Gradual harvesting makes good use of its compact growth and fleshy texture.

Direct sow in mid-spring in fertile, loose, well-drained soil, then thin to give the rosettes enough room. The source specifies a sowing depth of 1 to 2 cm, germination in 7 to 14 days and a temperature range of 10 to 24°C; follow the seed packet if its directions differ. Even moisture keeps the leaves and stalks tender without leaving the roots waterlogged. Sun supports steady growth, while light partial shade can help during hot spells. Add mature compost and fertilize moderately according to the soil's fertility.

Harvest the outer leaves first by cutting at the base; use the thinnings as baby greens. Harvest the outer leaves first, cutting cleanly near the base without damaging the centre where new leaves develop. Thinnings can be used as baby greens. Larger stalks can be cooked separately because they often need longer than the leaf blades. Sibilla suits vegetable gardens, raised beds and large containers with effective drainage. Watch for slugs, aphids and leaf miners, and remove badly affected leaves. After careful washing, use the harvest in sautés, braises, soups, gratins or pasta dishes.

Light and life cycle

In the garden

Exposure: Full sun / partial shade
Life cycle: Biennial grown as an annual

Sowing and germination

Sowing guide

Sowing & germination

Sowing depth

1 to 2 cm (1/2–3/4 in.)

Spacing / density

Thin to 10 cm (4 in.); rows 45 cm (18 in.) apart

Germination temperature

10 to 24°C (50–75 °F)

Germination time

7 to 14 days

Sowing period

Direct sow from mid-spring; repeat every two weeks until early summer.

Propagation

Seed sowing

Growing method

Direct sow in mid-spring when the soil is workable and starting to warm. For an earlier start, sow a few plants in cells four to six weeks before transplanting and handle the roots carefully. The source specifies a depth of 1 to 2 cm, a germination temperature of 10 to 24°C and emergence in 7 to 14 days. Thin early to keep the strongest plants, as each seed cluster can produce several seedlings. Give indoor seedlings plenty of light and keep the medium moist without saturating it. Harden plants off over several days before planting outside. Follow the packet spacing; the source suggests thinning to 10 cm with rows 45 cm apart. More generous spacing allows larger leaves and stalks to develop. Work in mature compost, water regularly and apply light mulch once the soil warms. Sow again in late summer if the local season allows enough time before hard frosts. Harvest outer leaves without damaging the centre. The packet's directions take priority if the lot specifies a different depth or schedule.

Soil and care

Soil & care

Moisture

Even moisture without standing water

Care level

Easy

Watering

Maintain even moisture to keep the leaves and stalks tender.

Soil type

Fertile, well-drained soil, ideally pH 6.5 to 7.5.

Fertilization

Work mature compost into poor soil before sowing. Light, balanced fertilization is generally sufficient in fertile soil. Avoid excessive nitrogen, which can produce overly soft tissue and unbalanced growth. Check plant colour and vigour before adding fertilizer, and follow the label rate. In containers, split applications into smaller amounts and water after applying granular fertilizer.

Seasonal care

In spring, loosen the soil and work in mature compost before sowing. Keep the seedbed moist until emergence, then thin promptly because each seed cluster can produce several seedlings. Give indoor seedlings plenty of light and harden them off before transplanting. In early summer, water regularly, mulch as the soil warms and pick outer leaves before they become too large. Watch young plants for slugs, inspect leaves for leaf miners and check stalks for aphids. Remove badly affected tissue and avoid unnecessary wetting of the foliage. During hot periods, light partial shade and even moisture can reduce stress, although no variety is completely immune to bolting. Sow again in late summer only if your local Canadian growing season leaves enough time before hard frosts. In autumn, harvest the remaining leaves, remove diseased residues and clean your tools. The plant is botanically biennial but is generally grown as an annual for leaves and stalks. Follow the packet if it specifies a different sowing depth or schedule. Always use a clean harvesting tool and preserve the centre so new leaves can develop. Spring sowings benefit from cool soil, and a late-summer sowing may extend the harvest where local conditions allow.

Growing in containers

Container growing

Recommended pot size

Well suited to large containers.

Choose a stable container at least 30 cm deep, with several drainage holes and enough width for spaced rosettes. Fill it with fertile, free-draining vegetable potting mix and sow at the packet's recommended depth. Thin early because a seed cluster can produce several seedlings. Keep the pot in sun during cool periods; light partial shade can help during strong heat. Water until excess drains out, then wait until the surface begins to dry without allowing the whole root ball to dry out. A thin mulch reduces moisture fluctuations. Fertilize moderately according to the label and avoid a buildup of salts. Harvest outer leaves with a clean tool while preserving the centre. Check leaf undersides for aphids and signs of leaf miners, and inspect around the pot for slugs. No staking is needed. At the end of the season, remove the roots and refresh part of the potting mix before another demanding crop. Follow the packet if it specifies a different depth or schedule, and preserve the centre at each harvest so new leaves can develop.

Growth and harvest

Size, flowering & harvest

Mature height

30 to 40 cm (12–16 in.)

Width / spread

35 to 45 cm (14–18 in.)

Edible parts

Leaves and stalks

Days to maturity

60 to 65 days

Harvest

Harvest the outer leaves first by cutting at the base; use the thinnings as baby greens.

Garden companions

Garden associations

Companion plants & uses

Companion plants

Swiss chard can share a bed with lettuce, radishes, onions or beans when each crop has enough space, light and moisture. These combinations mainly help organize harvests and use the soil efficiently; they do not automatically repel pests. Keep access to the leaves for checking leaf miners and aphids. Prevent tall crops from shading the rosettes completely and avoid thirsty neighbours that rapidly dry the root zone.

Plants to avoid

Flea beetles, aphids, slugs and leaf miners.

Other recommended plants

California Wonder Sweet Pepper; Topepo Rosso Red Pepper

Garden use

Plant Sibilla in a leafy vegetable bed, raised bed or edible border where the dark green foliage and white stalks are easy to inspect. Leave a path for regular harvesting without trampling soil around the roots. A spring sowing can be followed by another in late summer if local conditions allow. Combine it with low crops that have compatible watering needs, allowing enough light and air for each rosette. A deep, fertile, well-drained container suits small spaces. Inspect for leaf miners, aphids and slugs instead of relying on neighbouring plants to control them, and respond to the problems observed. After the last harvest, remove diseased residues and rotate to a different vegetable family. This layout keeps production accessible while showing the variety's upright habit. Follow the packet if it specifies a different depth or schedule. Use a clean harvesting tool and preserve the centre so new leaves can develop.

Recipe and storage

Recipe idea

From garden to table

For four servings, wash about 600 g of Sibilla Swiss chard leaves and stalks. Separate the stalks from the leaf blades, cut the stalks into 1 to 2 cm pieces and roughly shred the leaves. Heat two tablespoons of olive oil in a large frying pan. Add one chopped garlic clove and the stalks, then cook for five to seven minutes with a little water. Add the leaves and continue cooking until tender. Season with salt and pepper and finish with lemon juice. Serve as a side dish or toss with pasta and white beans. Cool leftovers promptly, refrigerate in a closed container and use within a reasonable time. Discard spoiled leaves before preparation and wash garden produce carefully. For growing and harvesting, follow the packet directions, use a clean tool and preserve the centre so new leaves can develop.

Frequently asked questions

When should I sow Sibilla Swiss chard?

Direct sow in mid-spring when the soil is workable, or start a few plants indoors four to six weeks before transplanting. The source specifies a depth of 1 to 2 cm and germination in 7 to 14 days at 10 to 24°C. Thin early because each seed cluster can produce several seedlings. Harden indoor seedlings off before planting outside. A second sowing in late summer is possible if your region has enough time before hard frosts. Adjust the schedule to your local Canadian growing conditions and the directions on the packet sold.

How can I harvest without stopping production?

Use a clean knife or scissors to cut the outer leaves close to their attachment point without damaging the centre of the rosette. Leave the young central leaves to continue growing and return when new leaves reach the size you want. Avoid removing too much foliage at once, especially after heat or drought. Water regularly to support regrowth. Clean young thinnings can be eaten as baby greens. Cool harvested leaves promptly, keep them clean and dry in the refrigerator and use them while they are still firm and fresh. Follow the seed packet if its directions differ from the general guidance.

Can I grow Sibilla in a container?

Yes. Choose a stable pot at least 30 cm deep with several drainage holes and enough width to space the rosettes. Use fertile vegetable potting mix and sow at the depth indicated on the packet. Thin excess seedlings promptly. Keep the container in sun during cool weather and provide light partial shade during strong heat. Check moisture often because potting mix dries faster than garden soil. Water until excess drains out, empty the saucer and fertilize moderately. Cut outer leaves while preserving the centre to extend production. Follow the packet if it specifies a different sowing depth or schedule.

Why do several seedlings emerge together?

Commercial Swiss chard seed is often a seed cluster: a small natural group that can contain several embryos. Two or more seedlings may therefore emerge almost in the same place. Once they are large enough to handle, thin by cutting excess seedlings at soil level so the remaining plant's roots are not disturbed. Clean young thinnings can be used as edible baby greens. Early thinning improves air circulation, reduces competition for water and gives the stalks more room to develop. Follow the seed packet if it specifies a different sowing depth or schedule.

How should I cook the leaves and stalks?

Wash the leaves and separate the stalks from the blades, as thicker stalks generally need longer cooking. Cut the stalks into even pieces, then cook them with a little oil and a small amount of water until they begin to soften. Add the shredded leaves and cook for a few more minutes. Garlic, lemon, white beans, tomatoes and pasta pair well with Swiss chard. Remove damaged portions before preparation. Cool leftovers promptly and refrigerate them in a closed container rather than leaving them at room temperature. Follow the packet if it specifies a different sowing depth or schedule.