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Photo de Tournesol ‘Mammoth Russian’. La couleur caractéristique est : jaune. Le visuel permet d’observer les contours, les teintes et la disposition des éléments présentés. Les détails de forme et les contrastes donnent un aperçu de l’apparence de cette plante ou de sa récolte. Cette photographie accompagne la variété nommée afin de l’identifier dans la sélection de semences.

Non-organic seeds, Treated seeds, open-pollinated variety, coated seeds Asteraceae

Ornamental flowers seeds

Mammoth Russian sunflower

Name: Mammoth Russian sunflower ( Helianthus annuus )
Brand: W.H. Perron
SKU: 61-8833-010
Price: 5.09 CAD
Availability: InStock

Helianthus annuus

Product code : 61-8833-010

Mammoth Russian sunflower has confirmed characteristics that help you plan its placement and cultivation. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. Mammoth Russian A large seeded type, with simple yellow flowers.

Quantity: Approximately 50 bare seeds per packet
Exposure: Full sun
Life cycle: Annual

Common nameMammoth Russian sunflower

FamilyAsteraceae

GenusHelianthus

Speciesannuus

CultivarMammoth Russian

TypeNon-organic seeds, Treated seeds, open-pollinated variety, coated seeds

Botanical nameHelianthus annuus

Mammoth Russian sunflower (Helianthus annuus) Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. Mammoth Russian A large seeded type, with simple yellow flowers. Growth is worth checking after major changes in temperature, light exposure, rainfall, or watering frequency. You can keep the labelled packet until harvest or flowering so the variety details remain easy to consult.

The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. For containers, drainage and soil volume directly influence moisture stability around the roots and the frequency of watering. In the garden, an accessible position makes observation, occasional watering, harvesting, and timely maintenance easier. It is recommended to remove only damaged material while retaining healthy foliage needed for continued growth. Results may vary with weather, sowing date, soil quality, and the number of hours of useful light each day.

This approach helps gardeners enjoy the variety’s confirmed qualities without adding more maintenance than the plant requires. For best results, check the growing medium before watering and adjust frequency to the actual conditions around the plant. You can review foliage and new growth each week to notice water stress, slowed development, or damage at an early stage. Good air movement and spacing that follows the product information support steady development throughout the growing season. Gradual hardening helps reduce transplant stress when seedlings have been started indoors before moving into the garden.

Sowing guide

It all startswith a seed.

Sowing depth

Approximately 2 to 3 cm

Spacing / density

Space 40 to 60 cm apart; thin to one vigorous plant

Germination temperature

16 to 18°C according to W.H. Perron

Germination time

7 to 14 days

Sowing period

Indoors 4 weeks before final frost or direct sow after the last frosts

Propagation

Seed

Growing method

For best results with Mammoth Russian sunflower, follow the confirmed sowing information and observe growth at each stage. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. Mammoth Russian A large seeded type, with simple yellow flowers. It is recommended to remove only damaged material while retaining healthy foliage needed for continued growth. Results may vary with weather, sowing date, soil quality, and the number of hours of useful light each day. This approach helps gardeners enjoy the variety’s confirmed qualities without adding more maintenance than the plant requires. For best results, check the growing medium before watering and adjust frequency to the actual conditions around the plant. You can review foliage and new growth each week to notice water stress, slowed development, or damage at an early stage.

Soil and care

The right care,at the right time.

Soil pH

Slightly acid to neutral; avoid strongly acidic soils

Minimum temperature

Frost sensitive; sow or plant after the last frost

Care level

Moderate because of height, head weight, and wind risk

Watering

For Mammoth Russian sunflower, check soil moisture before watering and adjust frequency to weather and observed growth. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds.

Soil type

This variety prefers soil or growing medium that follows the drainage and texture information published for Mammoth Russian sunflower. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds.

Fertilization

Fertilization for Mammoth Russian sunflower can remain moderate and be adjusted to soil fertility and observed vigour. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds.

Moisture

Moderate with good air movement

Seasonal care

Seasonal care for Mammoth Russian sunflower relies on regular observation, measured intervention, and respect for its growth cycle. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. Mammoth Russian A large seeded type, with simple yellow flowers. It is recommended to remove only damaged material while retaining healthy foliage needed for continued growth. Results may vary with weather, sowing date, soil quality, and the number of hours of useful light each day. This approach helps gardeners enjoy the variety’s confirmed qualities without adding more maintenance than the plant requires. For best results, check the growing medium before watering and adjust frequency to the actual conditions around the plant. You can review foliage and new growth each week to notice water stress, slowed development, or damage at an early stage. Good air movement and spacing that follows the product information support steady development throughout the growing season. Gradual hardening helps reduce transplant stress when seedlings have been started indoors before moving into the garden.

Container growing

A garden,within reach.

Recommended pot size

Open ground recommended; otherwise an extremely large, heavy, deep container

Mammoth Russian sunflower can be considered for a container when volume, drainage, and light match the expected growth. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. Mammoth Russian A large seeded type, with simple yellow flowers. It is recommended to remove only damaged material while retaining healthy foliage needed for continued growth. Results may vary with weather, sowing date, soil quality, and the number of hours of useful light each day. This approach helps gardeners enjoy the variety’s confirmed qualities without adding more maintenance than the plant requires. For best results, check the growing medium before watering and adjust frequency to the actual conditions around the plant. You can review foliage and new growth each week to notice water stress, slowed development, or damage at an early stage.

Bloom and dimensions

Its place,in your garden.

Mature height

300 cm (118.1 in)

Width / spread

40 to 50 cm (15.7 to 19.7 in)

Flower color

Yellow with a large brown to greenish centre

Foliage color

Dark green

Foliage type

Large annual, dark-green leaves

Growth rate

Very fast in warmth, full sun, and deep soil

Growth habit

Giant, upright, sturdy, and generally bearing one large main head

Fragrance

No pronounced fragrance confirmed

Bloom period

Flowering of Mammoth Russian sunflower can be appreciated according to the timing, colour, and garden role described for this variety. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds.

Fruiting

Reaching up to 3 meters (300 cm) in height, this garden giant is perfect for flowerbeds, cut flowers, or as a source of edible seeds for humans and birds. Add a spectacular dimension to your garden with the 'Mammoth Russian' sunflower, ideal for majestic landscapes and a generous harvest of tasty seeds. During its flowering period from July to September, keep this variety accessible to remove damaged parts without crushing still-fresh flowers.

Days to maturity

10 to 14 weeks

Garden associations

In goodcompany.

Companion plants

Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. Mammoth Russian A large seeded type, with simple yellow flowers.

Recipe idea

From the gardento your plate.

Edible parts

Mature seed harvested from the plant; do not eat sowing seed directly from the packet

After harvesting Mammoth Russian sunflower, use only the specified edible parts, washed carefully and gathered at the proper stage. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. Mammoth Russian A large seeded type, with simple yellow flowers. It is recommended to remove only damaged material while retaining healthy foliage needed for continued growth. Results may vary with weather, sowing date, soil quality, and the number of hours of useful light each day. This approach helps gardeners enjoy the variety’s confirmed qualities without adding more maintenance than the plant requires.

Frequently asked questions

Your questions,answered.

When should Mammoth Russian sunflower be sown?

Sowing time for Mammoth Russian sunflower depends on the confirmed packet information, the last frost date, and your region. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. Mammoth Russian A large seeded type, with simple yellow flowers.

Which light exposure suits Mammoth Russian sunflower?

Light exposure for Mammoth Russian sunflower should follow the published variety information and the light actually available in your garden. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. Mammoth Russian A large seeded type, with simple yellow flowers.

How should Mammoth Russian sunflower be watered?

Before watering Mammoth Russian sunflower, check the growing medium and foliage so frequency reflects current conditions. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. Mammoth Russian A large seeded type, with simple yellow flowers.

Can Mammoth Russian sunflower be grown in a container?

Mammoth Russian sunflower can be grown in a container when the pot provides effective drainage and enough volume for expected growth. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs.

When can you enjoy the harvest or flowering of Mammoth Russian sunflower?

Mammoth Russian sunflower is enjoyed during the flowering or decorative development period indicated for this variety. Mammoth Russian sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 300 cm, spread:, colour: yellow. The packet contains approximately 50 bare seeds, and the formulation is non-organic seeds, treated seeds, open-pollinated variety, coated seeds. For best results, follow the sowing, light, and spacing information associated with this variety. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. Mammoth Russian A large seeded type, with simple yellow flowers.