Name: King Kong F1 sunflower ( Helianthus annuus )
Brand: Norseco
SKU: 61-8848-010
Price: 5.09 CAD
Availability: InStock

Sale Sold out

Photo de Tournesol 'King Kong' F1. 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, F1 hybrid, bare seeds Asteraceae

Ornamental flowers seeds

Norseco

From seed to harvest

Common nameKing Kong F1 sunflower

FamilyAsteraceae

GenusHelianthus

Speciesannuus

CultivarKing Kong F1

TypeNon-organic seeds, Treated seeds, F1 hybrid, bare seeds

Botanical nameHelianthus annuus

Quantity per packetApproximately 25 bare seeds per packet

King Kong F1 sunflower (Helianthus annuus) King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. You can adjust care to your soil, weather, and observed growth without exceeding the plant’s actual needs. King Kong F1 You want a true giant sunflower? It is a real monster, growing to 5 meters (16 feet) tall, is great fun for children and birds love it too, because of the mass of seeds.

The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare seeds. For best results, follow the sowing, light, and spacing information associated with this variety. A suitable mulch can help stabilize moisture, reduce soil splash, and limit competition from weeds around established plants. 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. Measured care based on the plant’s condition generally supports better balance than unnecessary routine treatments.

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.

Light and life cycle

In the garden

Exposure: Sun
Life cycle: Annual

Sowing and germination

Sowing guide

Sowing & germination

Sowing depth

Approximately 2 to 3 cm

Spacing / density

Space at least 40 to 50 cm apart; allow extra room and no overhead obstruction

Germination temperature

16 to 18°C according to W.H. Perron

Germination time

7 to 14 days

Sowing period

Direct sow after the last frost; start indoors two to four weeks early if needed

Propagation

Seed

Growing method

For best results with King Kong F1 sunflower, follow the confirmed sowing information and observe growth at each stage. King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare 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. King Kong F1 You want a true giant sunflower? It is a real monster, growing to 5 meters (16 feet) tall, is great fun for children and birds love it too, because of the mass of seeds. You can keep the labelled packet until harvest or flowering so the variety details remain easy to consult. Measured care based on the plant’s condition generally supports better balance than unnecessary routine treatments. 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.

Soil and care

Soil & care

Soil pH

Slightly acid to neutral; avoid strongly acidic soils

Moisture

Moderate with good air movement

Minimum temperature

Frost sensitive; sow or plant after the last frost

Care level

Moderate to high because of height, water needs, and wind protection

Watering

For 'King Kong' F1 sunflowers, it is recommended to check soil moisture before watering and adjust frequency according to the weather. This true giant can reach up to 5 meters (500 cm) in height, delighting children and birds alike with the large quantity of seeds it produces. Transform your garden into a natural spectacle with the 'King Kong F1' sunflower, a giant variety that will amaze young and old while nourishing birds with its abundant seeds.

Soil type

This variety prefers soil or growing medium that conforms to the drainage and texture indications published for Sunflower ‘King Kong’ F1. Fertilization for Sunflower ‘King Kong’ F1 can remain moderate and be adjusted according to soil fertility and observed vigor. In late spring, when the soil has warmed up for Sunflower ‘King Kong’ F1, it is recommended to check soil moisture before watering and to adapt the frequency to the weather.

Fertilization

Fertilization for King Kong F1 sunflower can remain moderate and be adjusted to soil fertility and observed vigour. King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare seeds.

Seasonal care

Seasonal care for King Kong F1 sunflower relies on regular observation, measured intervention, and respect for its growth cycle. King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare 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. King Kong F1 You want a true giant sunflower? It is a real monster, growing to 5 meters (16 feet) tall, is great fun for children and birds love it too, because of the mass of seeds. You can keep the labelled packet until harvest or flowering so the variety details remain easy to consult. Measured care based on the plant’s condition generally supports better balance than unnecessary routine treatments. 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.

Growing in containers

Container growing

Recommended pot size

Open ground recommended; no small container is appropriate

King Kong F1 sunflower can be considered for a container when volume, drainage, and light match the expected growth. King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare 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. King Kong F1 You want a true giant sunflower? It is a real monster, growing to 5 meters (16 feet) tall, is great fun for children and birds love it too, because of the mass of seeds. You can keep the labelled packet until harvest or flowering so the variety details remain easy to consult. Measured care based on the plant’s condition generally supports better balance than unnecessary routine treatments. 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.

Growth and harvest

Size, flowering & harvest

Mature height

500 cm (196.9 in)

Width / spread

40 to 50 cm (15.7 to 19.7 in)

Flower color

Bright yellow with a dark centre

Foliage color

Dark green

Foliage type

Large annual, dark-green leaves

Growth rate

Very fast in deep, fertile, warm, regularly watered soil

Growth habit

Giant, upright, branching, and massive

Fragrance

No pronounced fragrance confirmed

Bloom period

King Kong F1 produces multiple large yellow flowers on a branching plant that can exceed 4 m and reach up to 5 m under excellent conditions. Flowers provide pollen and nectar, while mature heads produce abundant seed valued by birds. W.H. Perron lists 10 to 11 weeks to maturity. To support this growth, provide full sun, deep fertile soil, regular watering, and protection from strong winds. Allow some heads to mature, or protect them with netting if you wish to observe or collect seed.

Days to maturity

10 to 11 weeks

Garden companions

Garden associations

Companion plants & uses

Companion plants

King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare 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.

Garden use

In your garden, King Kong F1 sunflower is best positioned according to its habit, dimensions, and confirmed use. King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare 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. King Kong F1 You want a true giant sunflower? It is a real monster, growing to 5 meters (16 feet) tall, is great fun for children and birds love it too, because of the mass of seeds. You can keep the labelled packet until harvest or flowering so the variety details remain easy to consult. Measured care based on the plant’s condition generally supports better balance than unnecessary routine treatments. 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.

Wildlife and pets

Wildlife & precautions

Attracts birds

Yes

Supporting wildlife

King Kong F1 sunflower is associated with pollinators or useful garden wildlife in confirmed information; visits vary with flowering and local conditions. King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow.

Frequently asked questions

When should King Kong F1 sunflower be sown?

Sowing time for King Kong F1 sunflower depends on the confirmed packet information, the last frost date, and your region. King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare 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.

Which light exposure suits King Kong F1 sunflower?

Light exposure for King Kong F1 sunflower should follow the published variety information and the light actually available in your garden. King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare 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.

How should King Kong F1 sunflower be watered?

Before watering King Kong F1 sunflower, check the growing medium and foliage so frequency reflects current conditions. King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare 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. King Kong F1 You want a true giant sunflower?

Can King Kong F1 sunflower be grown in a container?

King Kong F1 sunflower can be grown in a container when the pot provides effective drainage and enough volume for expected growth. King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare 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 King Kong F1 sunflower?

King Kong F1 sunflower is enjoyed during the flowering or decorative development period indicated for this variety. King Kong F1 sunflower is an ornamental flowers variety offered as seed for gardeners who want clear, practical product information. Confirmed details include maturity:, height: 500 cm, spread:, colour: yellow. The packet contains approximately 25 bare seeds, and the formulation is non-organic seeds, treated seeds, f1 hybrid, bare 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. King Kong F1 You want a true giant sunflower?