Sunflower 'Valentine' Helianthus annuus 'Valentine'

👤 Non-toxic to humans
🐾 Non-toxic to pets
🌸 Blooming
🍪 Edible
‍🌱 Easy-care
sunflower 'Valentine'


'Valentine' is a robust annual with single flowers to 17cm across, with light yellow rays around a contrasting deep brown centre

Plant Info
Common Problems

About this plant

  • memoNames

    • Family


    • Synonyms

      Common Sunflower, Garden Sunflower, Valentine Sunflower.

    • Common names

      Helianthus annuus.

  • infoCharacteristics

    • Life cycle


    • Foliage type


    • Color of leaves


    • Flower color


    • Height

      5-6 feet (1.5-1.8 meters)

    • Spread

      1.5-2 feet (0.45-0.6 meters)

    • Plant type


    • Hardiness zones


    • Native area

      North America


  • money-bagGeneral Benefits

    • Aesthetic Appeal: Helianthus annuus 'Valentine', also known as the sunflower, adds vibrant color and visual interest to gardens and landscapes with its bright, yellow flowers.
    • Attracts Pollinators: It serves as a source of nectar and pollen, attracting bees, butterflies, and other beneficial pollinators to the garden.
    • Edible Seeds: The sunflower produces seeds that are edible for humans and can be used for making sunflower oil or consumed as a snack.
    • Wildlife Food Source: The seeds are also a food source for birds and other wildlife, particularly in the fall and winter months.
    • Easy to Grow: Sunflowers are known for being easy to cultivate, requiring minimal maintenance, which makes them suitable for novice gardeners.
    • Drought Tolerance: They are drought-resistant, allowing them to thrive in a variety of climates and conditions with less water.
    • Soil Improvement: Sunflowers can help improve soil health by loosening compacted soil with their deep roots and adding organic matter as they decompose.
    • Educational Tool: Their growth pattern and large size are often used to teach children about plant life and gardening practices.
    • Social and Cultural Significance: Sunflowers are often associated with happiness and optimism, making them popular in social and cultural contexts such as art and festivals.
    • Agricultural Benefits: In crop rotation, they can be used to break disease cycles and improve the soil for subsequent crops.

  • medicalMedical Properties

    This plant is not used for medical purposes.

  • windAir-purifying Qualities

    This plant is not specifically known for air purifying qualities.

  • leavesOther Uses

    • Helianthus annuus 'Valentine', commonly known as sunflower, can be used to extract natural dyes for fabrics, yielding a range of yellow and orange hues.
    • The fibrous stalks of sunflowers can be processed into a low-density material suitable for making biodegradable planting containers.
    • Sunflower seed shells can be used as a rough material for creating non-slip surfaces, such as for decking.
    • The dried stems of sunflowers are sturdy enough to be repurposed into garden stakes for supporting other plants as they grow.
    • Hull waste from sunflower seeds can serve as a combustible biomass fuel for industrial energy production.
    • Sunflower 'Valentine' petals can be included in natural potpourri mixes for a light, fresh floral scent.
    • The pith of sunflower stems, being light and spongy, can be used in the production of a vegan alternative to leather.
    • Sunflower oilcakes, byproducts of oil extraction, can be utilized as a high-protein feed for livestock.
    • Sunflower heads can work as scrubbing pads when dried, due to their abrasive texture.
    • Pressed sunflower oil can be used as a natural lubricant for fine machinery and locks.

Interesting Facts

  • bedFeng Shui

    Sunflower is not used in Feng Shui practice.

  • aquariusZodiac Sign Compitability

    Sunflower is not used in astrology practice.

  • spiralPlant Symbolism

    • Adoration: Helianthus annuus, commonly known as the sunflower, turns its head to follow the sun across the sky, symbolizing unwavering faith and adoration toward the source of light and life.
    • Loyalty: The behavior of sunflowers to consistently face the sun represents loyalty and constancy in affection, reflecting how people may remain devoted to those they love.
    • Positivity: With their bright and sunny appearance, sunflowers signify happiness and optimism, serving as a reminder to look on the brighter side of life.
    • Longevity: As sunflowers have a long blooming season, they are often associated with a long life and good health.
    • Vitality: The sheer size and vibrant color of sunflowers convey vitality and energy, symbolizing the vibrancy of life and the strength to grow under the full sun.
    • Intellectual Pursuits: The sunflower’s name, Helianthus, comes from the Greek words ‘helios’ (sun) and ‘anthos’ (flower), hinting at a connection to enlightenment and the pursuit of knowledge.

Every 7-10 days
2500 - 10000 Lux
Not needed
Not needed
  • water dropWater

    Sunflowers, including the Helianthus annuus 'Valentine', should be watered deeply once a week with about 2 gallons of water, particularly during hot and dry spells. They do well with a consistent watering schedule to maintain moist soil as they establish. However, once established, sunflowers are drought-tolerant and may require less frequent watering. The goal is to encourage deep root growth, so a thorough soak is preferable to frequent light waterings. During peak blooming time, you may need to water more frequently to support their large flower heads.

  • sunLight

    Sunflowers like the Helianthus annuus 'Valentine' thrive best in full sunlight, ideally receiving 6 to 8 hours of direct sun per day. To achieve optimal growth and bloom, position them in a spot where they will not be shaded by larger plants or structures. These sun-lovers will reach towards the sun, so an unobstructed, bright environment is best for their development.

  • thermometerTemperature

    Sunflowers, including the 'Valentine' variety, prefer warm temperatures and are best grown when the soil has reached at least 55 to 60 degrees Fahrenheit. They can survive in temperatures ranging from 70 to 78 degrees Fahrenheit during the day, which is ideal for their growth. Sunflowers can tolerate a maximum temperature up to about 90 degrees but may suffer in prolonged heat above this without adequate water.

  • scissorsPruning

    Pruning sunflowers like the 'Valentine' variety is generally unnecessary since they are annuals and only bloom once. If desired for aesthetic reasons or to remove damaged leaves or spent blooms, it can be done at any time. Pruning should be light, focusing on maintaining plant health rather than shaping.

  • broomCleaning

    As needed

  • bambooSoil

    For the common sunflower, a well-draining, nutrient-rich soil mix is best. Combine loamy garden soil with compost and a bit of sand to improve drainage. The ideal pH range for sunflowers is between 6.0 and 7.5, so test your soil and adjust accordingly.

  • plantRepotting

    Sunflowers, being annuals, don't typically require repotting. They are grown from seed each year and do not live long enough to need transferring to larger containers.

  • water dropsHumidity & Misting

    Sunflowers are adaptable to a range of humidity levels but perform best in moderate conditions. They do not require any special humidity adjustments for optimal growth.

  • pinSuitable locations

    • Indoor

      Ensure full sun by a window and use a large pot with drainage.

    • Outdoor

      Plant in direct sunlight with ample space for growth.

    • Hardiness zone

      2-11 USDA

  • circleLife cycle

    The common name for Helianthus annuus 'Valentine' is Sunflower 'Valentine'. The life cycle of Sunflower 'Valentine' starts with the germination of seeds, which occurs when conditions are warm and moist. The seedlings emerge with their first pair of true leaves after the cotyledons (seed leaves) and establish themselves quickly. During the vegetative growth stage, the plants develop a sturdy stem and large leaves to capture sunlight and perform photosynthesis. This is followed by the flowering stage, where the plant produces its distinctive large, typically yellow flower heads with a central disk that contains many small flowers capable of producing seeds. After pollination, often facilitated by bees, the plant enters the maturation stage, developing seeds within the flower head that can be harvested and either planted for the next generation or used for various purposes like oil production or as a food source.

  • sproutPropogation

    • Propogation time


    • Helianthus annuus 'Valentine', commonly known as the 'Valentine' sunflower, is typically propagated through seeds. The ideal time for sowing sunflower seeds is in the spring after the last frost when the soil has warmed up. This usually occurs between April and May, depending on the local climate. To propagate sunflowers by seed, you should plant the seeds about an inch deep in soil and space them roughly 6 inches (approximately 15 cm) apart, in rows spaced 24 to 30 inches (about 61 to 76 cm) apart. The seeds require full sun and should be watered well after planting. Germination usually occurs within 7 to 10 days. Once the seedlings are a few inches tall, they should be thinned out to allow the strongest plants room to grow, leaving about 18 to 24 inches (approximately 46 to 61 cm) between each plant.