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Zea mays

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From seed to harvest

Common nameBlue Jade Sweet Corn
FamilyPoaceae
GenusZea
Speciesmays
TypeOrganic seeds
Botanical nameZea mays

Organic 'Blue Jade Sweet' Corn Seeds (Zea mays). Organic Blue Jade Sweet Corn seeds are part of our organic seed selection for Canadian gardens. (Zea mays) is a unique heirloom variety celebrated for its miniature stature and vibrant blue kernels. The plants typically reach 3 to 4 feet in height and produce 2 to 5 small cobs per stalk. The kernels transition from white to deep blue as they mature, offering a rich, sweet flavour. Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. For practical seed starting, growing from seed succeeds best when the verified product depth, moisture and temperature guidance is followed.

Soaking in warm water for up to 12 hours is recommended for improved germination. Direct sow as soon as the soil has warmed up to 19°C. 1-2″ direct 15-32°C 5 to 8 days (Soak) Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots. Move seedlings into bright light as soon as they emerge and rotate containers regularly to encourage balanced growth. Use the product details as a clear guide on how to start seeds while keeping the growing medium evenly moist, never saturated.

Harvest when ear silks have dried out and kernels are full and filled up and appropriate colour has appeared. Beans, Squash, Melon, Amaranth, Cucumber, Peas, Parsley, Potato, Pumpkin, Tansy, Sunflower. The packet contains 50 seeds. Water at soil level when the surface begins to dry, then adjust frequency for weather, drainage, and container volume. A light mulch can reduce splashing and moisture swings after the soil has warmed and plants are established. Inspect foliage, stems, and leaf undersides regularly so stress or pests can be addressed early. Feed moderately according to soil fertility; steady growth is preferable to excessive or unbalanced fertilizer applications.

Light and life cycle

In the garden

Exposure
Partial shade
Life cycle
Annual
Sowing and germination

Sowing guide

Sowing & germination

Sowing depth

25 to 51 mm (1-2″) direct

Spacing / density

30 to 46 cm (12-18″)

Germination temperature

15-32°C

Germination time

5 to 8 days (Soak)

Propagation

Seed propagation

Growing method

For Blue Jade Sweet Corn, follow these sowing and growing guidelines for the variety. Soaking in warm water for up to 12 hours is recommended for improved germination. Direct sow as soon as the soil has warmed up to 19°C. 1-2″ direct 15-32°C 5 to 8 days (Soak) Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots. Move seedlings into bright light as soon as they emerge and rotate containers regularly to encourage balanced growth. Where several seedlings compete for the same space, thin carefully and retain the strongest plants without disturbing their roots. Before outdoor planting, gradually acclimatize young plants to wind, sunlight, and changing temperatures over several days. Follow the stated spacing so air can move between plants and each plant receives adequate light, water, and nutrients. Water at soil level when the surface begins to dry, then adjust frequency for weather, drainage, and container volume. A light mulch can reduce splashing and moisture swings after the soil has warmed and plants are established. This seed starting sequence supports reliable growing from seed while preserving the product-specific depth and temperature facts.
Soil and care

Soil and care

Soil & care

Care level

Moderate

Seasonal care

For Blue Jade Sweet Corn, adjust seasonal care to the plant’s actual growth cycle. Soaking in warm water for up to 12H is recommended for improved germination. Direct sow as soon as the soil has warmed up to 19°C. 1-2″ direct 15-32°C 5 to 8 days (Soak) Harvest when ear silks have dried out and kernels are full and filled up and appropriate colour has appeared. Beans, Squash, Melon, Amaranth, Cucumber, Peas, Parsley, Potato, Pumpkin, Tansy, Sunflower. The packet contains 50 seeds. Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots. Move seedlings into bright light as soon as they emerge and rotate containers regularly to encourage balanced growth. Where several seedlings compete for the same space, thin carefully and retain the strongest plants without disturbing their roots. Before outdoor planting, gradually acclimatize young plants to wind, sunlight, and changing temperatures over several days. Follow the stated spacing so air can move between plants and each plant receives adequate light, water, and nutrients. Water at soil level when the surface begins to dry, then adjust frequency for weather, drainage, and container volume. A light mulch can reduce splashing and moisture swings after the soil has warmed and plants are established.
Growing in containers

Container growing

Container growing

Growing Blue Jade Sweet Corn in a container requires suitable volume, drainage, and exposure. In-ground growing recommended; use a very large container of 40 L or more only with support and regular watering. Match the container to the plant's development and provide free drainage from planting onward. Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots. Move seedlings into bright light as soon as they emerge and rotate containers regularly to encourage balanced growth. Where several seedlings compete for the same space, thin carefully and retain the strongest plants without disturbing their roots. Before outdoor planting, gradually acclimatize young plants to wind, sunlight, and changing temperatures over several days. Follow the stated spacing so air can move between plants and each plant receives adequate light, water, and nutrients. Water at soil level when the surface begins to dry, then adjust frequency for weather, drainage, and container volume. A light mulch can reduce splashing and moisture swings after the soil has warmed and plants are established.
Growth and harvest

Size, flowering & harvest

Mature height

0.9 to 1.2 m (3-4′)

Foliage color

Green

Foliage type

Herbaceous

Growth rate

Moderate

Growth habit

Tall and upright
Garden companions

Garden associations

Companion plants & uses

Plants to avoid

Tomato, Celery.

Garden use

In the garden, place Blue Jade Sweet Corn according to its habit, vigour, and access for harvest. Harvest when ear silks have dried out and kernels are full and filled up and appropriate colour has appeared. Beans, Squash, Melon, Amaranth, Cucumber, Peas, Parsley, Potato, Pumpkin, Tansy, Sunflower. The packet contains 50 seeds. Read the packet directions before starting and keep the label so the variety remains clearly identified throughout the season. Prepare a clean, loose, well-drained growing medium and moisten it before placing the seeds so they are not displaced by the first watering. Keep the seedbed evenly moist without standing water because excess moisture reduces air around developing roots. Move seedlings into bright light as soon as they emerge and rotate containers regularly to encourage balanced growth. Where several seedlings compete for the same space, thin carefully and retain the strongest plants without disturbing their roots. Before outdoor planting, gradually acclimatize young plants to wind, sunlight, and changing temperatures over several days. Follow the stated spacing so air can move between plants and each plant receives adequate light, water, and nutrients. Water at soil level when the surface begins to dry, then adjust frequency for weather, drainage, and container volume.

Frequently asked questions

Frequently asked questions

How many 'Blue Jade Sweet' Corn seeds are in the packet?
For Blue Jade Sweet Corn, the packet information states: Approximately 50 seeds · lot GO24158 · germination >85%. This wording preserves the commercial approximation when one is provided and helps plan the number of containers or the length of the row without turning an estimate into a guaranteed count. Keep the packet closed in a cool, dry, dark place until sowing time. Keep the label with the seedlings so the variety remains correctly identified throughout the season. Use clean containers and write the sowing date on a water-resistant label. Avoid exposing unused seed to moisture or large temperature swings.
How should I start 'Blue Jade Sweet' Corn seeds in Canada?
For Blue Jade Sweet Corn, follow the sowing directions on the packet. The recommended method is propagation by seed, at a depth of 25 to 51 mm (1-2″) direct. Follow these product-specific directions and adjust timing to the average last-frost date in your area. Moisten the growing medium before placing the seed so the first watering does not displace it. Label every container and maintain even moisture without allowing standing water. Move seedlings into bright light as soon as they emerge to encourage balanced growth. Thin carefully when several seedlings compete for the same space. For seed starting, label the cultivar and use the stated sowing depth instead of a generic estimate.
How long do 'Blue Jade Sweet' Corn seeds take to germinate?
For Blue Jade Sweet Corn, the stated germination period is 5 to 8 days (Soak), with a germination temperature of 15-32°C. Keep these conditions as steady as practical while allowing excess water to drain away. The temperature of the growing medium matters more than the surrounding air during this stage. Check moisture below the surface before watering again and avoid saturating the medium. Good air circulation helps young plants remain vigorous after emergence. Wait until the normal germination window has passed before assuming a seed will not emerge. When growing from seed, keep conditions stable for the full stated germination window before disturbing the mix.
Where should I grow 'Blue Jade Sweet' Corn in the garden?
For Blue Jade Sweet Corn, the recommended exposure is partial shade. The stated spacing guideline is 30 to 46 cm (12-18″). For container growing, use a freely draining container sized for the plant’s mature root system. Allow for the mature habit so neighbouring plants do not restrict light or access for harvest. Choose a site that is easy to water and leave enough room for air to circulate around the foliage. In a container, make sure several holes allow excess water to drain freely. A light mulch can steady moisture after the soil has warmed and plants are established. Place plants where their growth can be observed and stress can be addressed early.
When and how should I harvest 'Blue Jade Sweet' Corn?
For Blue Jade Sweet Corn, the confirmed edible parts are seeds or pods harvested at the recommended stage. Harvest them at the stage stated in the product record, then sort the crop before preparation. Use only the parts correctly identified as edible for this plant. Use a clean tool and handle the harvest carefully to avoid unnecessary injury to the plant. Harvest in dry weather when practical and remove damaged portions promptly. Wash only the parts intended for the kitchen and refrigerate perishable produce promptly. Never eat a plant part whose identity or edibility is uncertain.

Seed-starting essentials

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