Helianthus Red Sun - Red Sun Sunflower - 10 seeds

Kindly take note:
The Helianthus 'Red Sun' sunflowers are open-pollinated, which means natural variations in flower color can occur. While many blooms showcase the classic deep-red petals, it is not uncommon for some flowers to appear in shades of yellow, burnt orange, or different hues of red.

By purchasing this product, you acknowledge and accept that these natural colour variations are characteristic of open-pollinated sunflowers.

The Helianthus 'Red Sun' is a striking variety of sunflower known for its bold, deep-red petals that often darken towards a chocolate-brown center. This dramatic plant adds a unique splash of color to gardens, contrasting beautifully with traditional yellow sunflowers. Growing to a height of 150-180 cm, 'Red Sun' produces multiple blooms per stem, making it a fantastic choice for borders, wildlife gardens, or cut-flower arrangements.

Its vibrant flowers not only look stunning but also attract pollinators like bees, butterflies, and birds, enhancing the biodiversity of your garden.

Light:

Full sun is essential — at least 6-8 hours of direct sunlight daily.

Sunflowers turn their heads to follow the sun, a behavior known as heliotropism, especially when young.

Soil:

Prefers well-draining, fertile soil.

Loamy or sandy soil with a pH between 6.0-7.5 is ideal.

Enrich the soil with organic compost before planting for better growth.

Water:

Water deeply and consistently, especially during dry spells.

Ensure the top 2.5 cm of soil remains moist but not soggy.

Reduce watering once the plants are established, as sunflowers are moderately drought-tolerant.

Temperature:

Thrives in warm conditions, with optimal temperatures between 18-25°C.

Protect young plants from frost — sow only after the last frost date in your area.

Fertilizer:

Use a low-nitrogen fertilizer (such as 5-10-10) to encourage flower production rather than excessive leafy growth.

Feed every 2-3 weeks during the growing season.

Sowing and Propagation:

Direct sow seeds outdoors after the danger of frost has passed.

Plant seeds 2.5 cm deep and 30 cm apart.

Germination usually takes 7-14 days.

Thin seedlings once they reach about 15 cm tall, keeping the strongest ones spaced apart.

Spacing:

Space plants 45-60 cm apart to allow for their tall growth and branching stems.

Maintenance:

Staking may be necessary for taller plants, especially in windy areas.

Deadhead spent blooms to encourage continuous flowering.

Leave some seed heads in late summer or fall — they attract birds like finches and can add winter interest to your garden.

Would you like tips on pairing 'Red Sun' with other plants for a stunning garden display, or help with creating a pollinator-friendly planting scheme? Let me know!