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Sunflower Inca Empire Mix Seeds - Helianthus annuus

Helianthus annuus Inca Empire Mix
Sunflower, common sunflower

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A selection of bright and radiant sunflowers, ideal for enhancing summer flower beds. This mix is composed of flowers with various colours and shapes, growing on plants that can reach a height of 2 to 3 m. Perfect flowers for creating beautiful bouquets. This annual plant is easily sown and cultivated without difficulty. It grows quickly and thrives in all well-drained soils.
Flower size
20 cm
Height at maturity
2.50 m
Exposure
Sun
Annual / Perennial
Annual
Germination time (days)
12 days
Sowing method
Direct sowing, Sowing under cover
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Sowing period March to June
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Flowering time July to October
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Description

Helianthus annuus 'Inca Empire Mix' is a blend of various varieties of decorative sunflowers, carefully chosen for their vibrant colours and long flowering period. Throughout the summer, these flowers with their varied shapes and vibrant colours enhance the garden and enrich bouquets. They are also valuable for pollinating insects. Easy to sow and grow in well-nourished and moist soil, in full sun. This tall annual plant can be sown from March to April, in pots, or directly in the ground between May and June after the last frost.

Helianthus annuus is the famous sunflower cultivated on a large scale for the oil extracted from its seeds. This tall annual plant from the Asteraceae family, domesticated for a long time by humans, has a controversial origin, but it is native to the American continent.

The 'Inca Empire Mix' sunflower blend is composed of several horticultural sunflower varieties reaching a height of 2 to 3 m and a spread of 0.40 to 0.60 m. Flowering begins in July-August and continues until September-October, if you take care to remove faded flowers. The flowers are in heads measuring 12 to 20 cm in diameter. Under optimal conditions, it takes about 8 weeks from sowing to the start of flowering. The flower stalks are strong and well-branched. The foliage consists of dark green, simple, cordate (heart-shaped), toothed leaves, alternately arranged, sometimes opposite at the base. They are attached to the stem by a petiole and have a rough texture.

Its ease of cultivation and large, easy-to-germinate seeds are very popular with children who are getting started in gardening. The 'Inca Empire Mix' sunflowers are particularly suitable for ornamental seasonal beds, but also for decorating the vegetable garden where they attract many beneficial animals. They only require sunlight and soil that is not too dry to thrive effortlessly. They have a rustic appearance and as such, they blend well in slightly wild areas of the garden, alongside cosmos, sainfoin, perennial sweet peas, scabiosa, gaillardia, and more.

Before flowering, the plant optimises its growth by following the path of the sun. This phenomenon, called heliotropism, has given rise to some of its common names: Héliotrope, Tournesol, Sunflower...

To enjoy your cut sunflowers for longer, follow these tips: Cut the flowers in the morning just after they have opened. Use a clean knife. Remove the leaves from the bottom, leaving only 2 or 3 leaves below the flower. Change the water in the vase with fresh water every day.

An ecological asset: Throughout the summer, the nectar-rich flowers of sunflowers attract pollinating insects and butterflies to your garden. A good way to improve the ecosystem and promote fruit and vegetable production in your vegetable garden.

Flowering

Flower colour multicoloured
Flowering time July to October
Inflorescence Flower head
Flower size 20 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Annual
Foliage colour green
Foliage description The 40 to 60 cm long, cordate leaves are deep green and bristly with hairs.

Plant habit

Height at maturity 2.50 m
Spread at maturity 50 cm
Growth rate fast

Botanical data

Genus

Helianthus

Species

annuus

Cultivar

Inca Empire Mix

Family

Asteraceae

Other common names

Sunflower, common sunflower

Origin

Cultivar or hybrid

Planting and care

Sunflowers can be sown:

. Either in March-April, in pots under cover, to prepare young plants that can be placed in your flower beds after the last frost.

. Or from May to June, after the frost, directly in place. In a sunny spot in your garden. To enjoy beautiful fresh flowers all season, we recommend staggering your sowings as much as possible.

Sow the 'Inca Empire Mix' Sunflower seeds from March to April in pots in groups of 2 at a depth of 1 cm. Use a good quality potting soil sieved on the surface to bind the seed to its substrate. Before sowing, lightly tamp down the soil with a board. Cover the seeds by sprinkling soil on top or using vermiculite, lightly tamp down and water copiously with a fine rain. Place your pots in the light, without direct sunlight, at a temperature of 20°C to 25°C. Lower the temperature at night to 17°C to create a beneficial alternation for germination. The seeds will take 10 to 15 days to germinate. Keep the soil moist, but not excessively during growth.

20 days after the appearance of the young plants, remove the weaker shoot to keep only one per pot. To promote branching of the main stem, you can cut the terminal bud when the plant has developed its fifth leaf.

15 days before their final placement, start gradually acclimatising them to a temperature of 15°C.

At the end of May or the beginning of June, the temperature will be warm enough in the garden to plant your young plants. Choose a sunny location. Add a good shovelful of compost to each planting hole. Space your plants 0.50 to 0.60 m apart.

The vigorous growth of the Sunflower will require regular watering. Once the plant has reached about 1m, you can stop watering and let it rely on rainfall even if it is scarce.

It takes 84 days between sowing and flowering.

Protect your seedlings from attacks by snails and slugs, which are fond of these young plants. Sowing chives near your sunflowers can keep aphids away.

Sowing period

Sowing period March to June
Sowing method Direct sowing, Sowing under cover
Germination time (days) 12 days

Intended location

Suitable for Meadow, Flowerbeds
Type of use Back of border
Ease of cultivation Beginner
Exposure Sun
Soil pH Any
Soil moisture Moist soil, moist, well-draining, and fertile

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