Organic 'Osaka Purple' Mustard Seeds

Brassica iuncea

Product code : GAIAS-0107

This organic variety is part of Gaia's seed selection for Canadian gardens. Commonly grown as a baby leaf for salad mixes. The spicy mustard flavour can add quite a kick to a salad mix. Cold tolerant and flavour intensifies as it becomes colder. 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. Match the site to the plant's verified light, soil and spacing requirements. 'Osaka Purple' Mustard seeds are presented here with Canadian seed starting and seasonal care guidance.
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Detailed plant guide
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Exposure
Partial shade
Life cycle
Annual

Discover the plant

Common nameOsaka Purple Mustard
FamilyBrassicaceae
GenusBrassica
Speciesiuncea
TypeOrganic seeds
Botanical nameBrassica iuncea

Organic 'Osaka Purple' Mustard Seeds (Brassica iuncea). This organic variety is part of Gaia's seed selection for Canadian gardens. Commonly grown as a baby leaf for salad mixes. The spicy mustard flavour can add quite a kick to a salad mix. Cold tolerant and flavour intensifies as it becomes colder. Life cycle: annual. 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 seed as soon as the soil can be worked. Harvest leaves as desired. 1/2 to 1 in direct 2 to 23 °C 5 to 10 days (after soaking). Space plants 30.5 to 45.7 cm (12 to 18 in). Use the product details as a clear guide on how to start seeds while keeping the growing medium evenly moist, never saturated.

Harvest when leaves are 3 in tall by cutting 1 in from ground. Dill, Fennel, Yarrow, Mint, Corn, Peas, Rosemary, Thyme, Beets, Celery, Carrot, Lettuce, Onion, Cucumber. The packet contains 90 seeds.

Organic 'Osaka Purple' Mustard Seeds by Gaia, product image prepared for Canadian gardeners.

Sowing guide

It all startswith a seed.

Sowing depth

13 to 25 mm (1/2-1″) direct

Spacing / density

30 to 46 cm (12-18″)

Germination temperature

2-23°C

Germination time

5 to 10 days (after soaking)

Propagation

Seed propagation

Growing method

For Osaka Purple Mustard, follow these sowing and growing guidelines for the variety. Soaking in warm water for up to 12 hours is recommended for improved germination. Direct seed as soon as the soil can be worked. Harvest leaves as desired. 1/2 to 1 in direct 2 to 23 °C 5 to 10 days (after soaking). 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

The right care,at the right time.

Care level

Moderate

Seasonal care

For Osaka Purple Mustard, adjust seasonal care to the plant's actual growth cycle. Soaking in warm water for up to 12 hours is recommended for improved germination. Direct seed as soon as the soil can be worked. Harvest leaves as desired. 1/2 to 1 in direct 2 to 23 °C 5 to 10 days (after soaking). Harvest when leaves are 3 in tall by cutting 1 in from ground. Dill, Fennel, Yarrow, Mint, Corn, Peas, Rosemary, Thyme, Beets, Celery, Carrot, Lettuce, Onion, Cucumber. The packet contains 90 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.

Container growing

A garden,within reach.

Growing Osaka Purple Mustard in a container requires suitable volume, drainage, and exposure. 5 to 10 L per plant with free drainage. 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.
Organic 'Osaka Purple' Mustard Seeds by Gaia, additional product image for Canadian gardeners.

Bloom and dimensions

Its place,in your garden.

Foliage color

Green

Foliage type

Herbaceous

Growth rate

Moderate

Growth habit

Rosette or compact clump
Organic 'Osaka Purple' Mustard Seeds by Gaia, product image prepared for Canadian gardeners.

Garden associations

In goodcompany.

Plants to avoid

Sunflower, Beans, Strawberry, Turnip, Notweed.

Frequently asked questions

Your questions,answered.

How many 'Osaka Purple' Mustard seeds are in the packet?
For Osaka Purple Mustard, the packet information states: Approximately 90 seeds · lot GO-0000612 · 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 'Osaka Purple' Mustard seeds in Canada?
For Osaka Purple Mustard, follow the detailed sowing schedule in the product record. The recommended method is sowing from seed, at a depth of 13 to 25 mm (1/2 to 1 in) when direct-sown. 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 'Osaka Purple' Mustard seeds take to germinate?
For Osaka Purple Mustard, the stated germination period is 5 to 10 days (after soaking), at a germination temperature of 2 to 23 °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 'Osaka Purple' Mustard in the garden?
For Osaka Purple Mustard, the recommended exposure is Partial shade. The stated spacing guideline is 30 to 46 cm (12-18″). For container growing, the product record recommends: 5 to 10 L per plant with free drainage. 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 'Osaka Purple' Mustard?
For Osaka Purple Mustard, observe seasonal development and use the period of interest stated in the product record as a guide for enjoying the plant in the garden. No part should be eaten without explicit confirmation that it is edible for the exact species. 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.