Sunflower Tall (20-Seeds)^Sale

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Description Review

Buy Sunflower Tall Seeds Online in India

Bring the bright, cheerful beauty of sunflowers to your garden with SeedVanam Sunflower Tall Seeds. Sunflowers are among the most recognisable garden flowers, admired for their vibrant yellow petals, strong upright stems and large flower heads.

Tall Sunflower varieties are particularly suitable for gardeners who want height and visual impact in their outdoor space. Instead of remaining close to the ground like compact dwarf varieties, tall sunflowers develop strong upright stems and can create an impressive vertical display when grown in a sunny garden.

The botanical name of the common cultivated sunflower is Helianthus annuus. It belongs to the Asteraceae family and is grown widely as an ornamental flower as well as an agricultural crop.

SeedVanam currently lists this product as Sunflower Tall with 20 seeds per packet and an indicated germination percentage of 85–90%. The product is also listed as Desi, Native, Non-Hybrid, Open Pollinated and Non-GMO.

Tall Sunflowers are ideal for creating a strong garden backdrop, adding height to flower beds, decorating open spaces and attracting attention around entrances, fences and pathways.

The bright yellow flower heads also work beautifully against green foliage, making sunflowers particularly effective in natural and informal garden designs.

Sunflowers are generally warm-season plants and perform best when they receive plenty of direct sunlight. They prefer fertile, well-drained soil and regular moisture during early growth and flowering.

Tall varieties also benefit from adequate spacing and support, particularly in exposed locations where strong wind may bend the stems.

Whether you are an experienced gardener or growing sunflowers for the first time, SeedVanam Sunflower Tall Seeds offer a simple way to begin your sunflower garden directly from seed.

Why Grow Tall Sunflowers?

Produces attractive bright yellow sunflower blooms
Tall upright growth adds height to gardens
Excellent choice for sunny outdoor spaces
Suitable for home gardens
Ideal for flower beds and borders
Suitable for large pots and grow bags
Creates an attractive garden backdrop
Can be used around pathways and fences
Suitable for terrace gardens with adequate container space
Excellent for natural-style garden designs
Attractive to visiting bees and other pollinators
Suitable for cut flower displays
Easy to grow when planted during suitable weather
Fast-growing compared with many ornamental plants
Suitable for beginner and experienced gardeners
Can create a striking seasonal garden display

Product Information

Common Name: Sunflower Tall
Other Names: Common Sunflower, Tall Sunflower, Sun Flower
Botanical Name: Helianthus annuus
Plant Family: Asteraceae
Plant Type: Annual flowering plant
Flower Type: Large daisy-like flower head
Typical Flower Colour: Yellow petals with a darker central disc
Plant Habit: Tall, upright and strongly branching depending on variety
Seed Quantity: 20 seeds per packet
Listed Germination Percentage: 85–90%
Seed Type Listed by SeedVanam: Desi, Native, Non-Hybrid, Open Pollinated and Non-GMO
Sunlight Requirement: Full sunlight
Preferred Soil: Fertile, loose and well-drained soil
Water Requirement: Regular during establishment and flowering
Germination Time: Approximately 5–14 days under suitable conditions
Preferred Soil Temperature: Approximately 20–25°C
Growing Method: Direct sowing preferred
Suitable For: Gardens, flower beds, large containers, grow bags and landscaping
Approximate Flowering: Approximately 70–100 days depending on variety and growing conditions
Seed Saving: Possible when the supplied variety is confirmed open-pollinated

Plant height, flower size, branching, flowering time and seed development can vary according to genetics, temperature, soil, sunlight, watering, spacing and growing conditions.

Sunflower Tall Plant Appearance

Tall Sunflowers develop an unmistakable upright appearance.

The plant generally produces:

The broad leaves help the plant capture sunlight during active growth.

As the plant develops, the stem becomes stronger and supports the growing flower head.

The final height depends strongly on the genetics of the particular seed variety and environmental conditions. Therefore, gardeners should not expect every plant from a packet to reach exactly the same height.

Tall sunflower varieties are particularly attractive when planted in groups.

A row of sunflowers can create:

A colourful garden backdrop
A seasonal boundary
A natural screen
A vertical flower display
A striking background for shorter flowers

Sunflower Flower Appearance

The sunflower flower head is actually a composite structure made up of many small individual flowers.

The outer yellow petals create the familiar sunflower appearance, while the central disc contains numerous tiny florets.

The centre may range from:

Brown
Dark brown
Deep reddish-brown

depending on the variety.

The combination of yellow petals and dark centre creates one of the strongest colour contrasts in an ornamental garden.

The flower heads can become quite heavy as they mature, particularly when seeds develop.

This is why tall sunflowers grown in windy areas may benefit from staking.

Sunflower and Sunlight

Sunflowers are named for their strong association with sunlight.

Young sunflower plants require plenty of light for healthy development.

Full sunlight supports:

Strong stems
Healthy leaves
Better flower development
More compact growth
Better flower orientation

A location receiving approximately 6–8 hours of direct sunlight is ideal for most garden sunflowers.

Avoid planting tall sunflowers behind buildings, walls or large trees where they receive only a few hours of light.

Plants grown in shade may become:

Thin
Weak
Stretched
Slanted
Less productive

Tall varieties are especially dependent on strong light because they need sufficient energy to support their vertical growth.

Best Location for Tall Sunflowers

Select an open area with plenty of sunlight.

Good locations include:

Because tall sunflowers can shade shorter plants, place them toward the back of a flower bed.

This allows shorter flowers to continue receiving sunlight.

Best Sowing Season for Sunflower in India

Sunflowers are warm-season plants, but the best sowing period varies according to the region and intended crop.

General Home-Garden Sowing

Suitable periods may include:

February to April
June to August
September to November in suitable warm regions

The ideal period is one where the plant can receive warm weather, sufficient sunlight and adequate water without prolonged extreme conditions.

Telangana and Andhra Pradesh

For Hyderabad and surrounding areas, practical garden sowing windows can include:

February to April

and

September to November

Avoid sowing during periods of extreme heat if water availability is limited.

During monsoon, make sure the soil drains quickly.

Karnataka

Depending on local weather, sunflowers can be grown during warm periods with adequate moisture.

Tamil Nadu

Warm conditions allow flexible sowing, but local rainfall and seasonal temperatures should be considered.

North India

Spring and early summer can provide suitable conditions after severe winter temperatures have passed.

Important Advice

Do not select a sowing date only because it appears on a general calendar.

Consider:

Sunflower performs best when the crop can grow continuously without severe stress.

How to Grow Sunflower Tall from Seeds

Tall sunflowers are generally easiest to grow by direct sowing.

Sunflowers develop a strong root system, and direct sowing reduces transplant disturbance.

Step 1 – Select the Growing Area

Choose an open location receiving full sunlight.

Make sure there is enough vertical and horizontal space for mature plants.

Step 2 – Prepare the Soil

Remove:

Weeds
Stones
Large roots
Construction debris

Loosen the soil to approximately 20–30 cm depth.

Mix mature compost into the soil.

Step 3 – Improve Drainage

Sunflowers need moisture but do not perform well in permanently waterlogged soil.

If the soil is heavy clay, add suitable organic matter and coarse material to improve drainage.

Raised beds are useful in areas where rainwater tends to collect.

Step 4 – Sow the Seeds

Make a hole approximately 2.5–5 cm deep.

Place one seed in each hole.

Cover gently with soil.

Direct-sowing guidance commonly recommends planting sunflower seeds around 1–2 inches deep.

Step 5 – Water Immediately

Water gently after sowing.

The soil should remain evenly moist but not saturated.

Step 6 – Maintain Moisture

During germination, check the soil regularly.

Do not allow the seed bed to dry completely.

Step 7 – Germination

Sunflower seeds can germinate relatively quickly.

Under suitable conditions, emergence may occur within approximately 5–10 days, while some seeds may take up to two weeks.

Temperature, seed freshness and soil moisture affect germination.

Step 8 – Thin the Seedlings

If multiple seeds germinate too closely together, retain the healthiest plant.

Remove weaker seedlings carefully.

Thinning is especially important for tall varieties because overcrowding produces weaker stems.

Direct Sowing vs Transplanting

Direct Sowing

Recommended for most home gardeners.

Advantages:

Less root disturbance
Stronger initial root development
Simple process
Lower transplant stress

Transplanting

Possible when seedlings are started in large individual containers.

However, sunflower roots can become disturbed during transplantation.

If transplanting is necessary, move young seedlings while the root ball is intact.

Recommended Plant Spacing

For tall sunflower varieties, provide approximately:

30–45 cm between plants

For particularly large-growing plants, additional space may be beneficial.

Adequate spacing provides:

Avoid planting tall sunflowers too close together.

Growing Tall Sunflowers in Pots

Tall sunflowers can be grown in containers, but the container needs to be large enough to support the plant.

Recommended Container

Use:

40–50 cm deep pots
Large grow bags
Heavy containers
Large terrace planters

The larger the expected plant, the more important container stability becomes.

Container Width

A container approximately 30–40 cm wide can support one tall sunflower plant when soil volume is adequate.

Drainage

The container must have several drainage holes.

Do not grow sunflowers in containers where excess water cannot escape.

Pot Placement

Place the container where it receives:

6–8 hours of direct sunlight

Wind Protection

Tall sunflowers grown in pots are more vulnerable to wind because the container has limited weight.

Place containers near a stable structure while ensuring the plant still receives sufficient sunlight.

Soil Mix for Container Sunflowers

A practical mixture can contain:

40% garden soil
30% mature compost
20% cocopeat
10% perlite or coarse sand

The growing medium should:

Drain excess water
Retain moderate moisture
Provide root support
Remain loose

Avoid filling the container with pure cocopeat because tall plants need stronger physical support.

Watering Guide

Sunflowers need regular moisture during active growth.

Germination Stage

Keep the soil evenly moist.

Seedling Stage

Water when the upper soil begins drying.

Rapid Growth Stage

Tall sunflowers can use more water as leaves and stems become larger.

Water deeply enough to moisten the root zone.

Flowering Stage

Maintain consistent moisture during bud development and flowering.

Maturity Stage

As the flower head matures and the plant begins drying, watering can gradually be reduced.

Avoid keeping mature seed heads continuously wet.

Signs of Underwatering

Signs of Overwatering

Yellow leaves
Soft stems
Permanently wet soil
Root problems
Slow growth

Do not follow a fixed “water every day” rule.

Check the soil and adjust watering according to weather and container size.

Feeding Sunflowers

Sunflowers are vigorous plants.

Good soil preparation is more important than excessive fertilisation.

Before sowing:

Mix mature compost into the soil.

During growth:

Apply a light compost top-dressing when required.

A balanced fertiliser can be used according to label instructions if the soil is poor.

Avoid excessive nitrogen.

Too much nitrogen may produce:

Excessive leafy growth
Very soft stems
Delayed flowering
Reduced flower quality

Tall sunflowers need balanced nutrition rather than simply high fertiliser levels.

Staking Tall Sunflowers

Staking may be useful for tall sunflowers, particularly when:

Plants are grown in pots
The location is windy
Flower heads become heavy
Stems are unusually tall
Plants are exposed to storms

How to Stake

Use:

Bamboo stakes
Wooden supports
Garden canes

Place the stake near the plant while avoiding damage to the main roots.

Tie the stem gently using:

Soft garden ties
Cloth strips
Flexible plant tape

Do not tie tightly around the stem.

Install support before the plant becomes too tall.

Flowering Time

Many garden sunflowers begin flowering approximately 70–100 days after sowing, although the exact period depends on variety and growing conditions.

The current SeedVanam Tall Sunflower page does not specify an exact flowering period, so avoid promising a fixed number of days on the product page.

Flowering can be influenced by:

How to Encourage Better Flowers

For a strong flowering display:

Provide full sunlight
Use fertile but well-drained soil
Maintain adequate spacing
Water consistently
Avoid excessive nitrogen
Support tall plants when necessary
Remove competing weeds
Protect developing flower heads from severe wind

Sunflower Flower Orientation

Young sunflower plants can display movement toward sunlight.

As the flower head matures, this movement becomes much less pronounced and the mature flower may remain oriented in one direction.

Therefore, avoid promising that mature sunflowers will continuously “follow the sun.”

Sunflower as a Pollinator Plant

Sunflower flower heads can attract bees and other visiting insects.

The central disc contains numerous small florets that provide an accessible feeding area.

Planting several sunflowers together can create a more noticeable pollinator-friendly area.

Combine sunflowers with:

Avoid applying unsuitable chemicals directly to open flowers when pollinators are active.

Companion Planting

Tall Sunflowers can act as a vertical background for shorter flowers.

Suitable companions include:

Marigold

Creates a strong yellow-orange garden combination.

Zinnia

Adds additional colours beneath tall sunflower stems.

Cosmos

Creates a soft, natural garden appearance.

Salvia

Red or purple Salvia creates a strong contrast against yellow sunflowers.

Gaillardia

Yellow and red-orange flowers complement the sunflower colour.

Gomphrena

Compact flowering plants can fill the lower portion of the garden.

Remember that tall sunflowers can cast shade. Plant sun-loving companions where they will still receive enough direct light.

Growing Sunflowers on a Terrace

Terrace gardens can successfully grow tall sunflowers if large containers are used.

Choose Large Containers

Avoid small decorative pots.

Provide Stability

Use heavy containers or place pots where they cannot easily tip.

Protect from Strong Winds

Tall stems can act like sails during storms.

Maintain Drainage

Terraces must drain quickly after rainfall.

Check Moisture

Containers may dry rapidly during hot weather.

Plan the Height

Do not place tall sunflowers where they block access or interfere with overhead structures.

Monsoon Care

During heavy rain:

Rain combined with wind can bend tall sunflower stems.

Summer Care

Sunflowers enjoy sunlight, but young plants still require adequate water.

During extreme summer:

Water deeply
Check containers more frequently
Mulch garden soil lightly
Avoid fertilising severely stressed plants
Protect newly emerged seedlings from sudden severe heat

Established plants generally tolerate warm conditions better than young seedlings.

Common Sunflower Growing Problems

Seeds Are Not Germinating

Possible causes:

Seeds planted too deeply
Soil too cold
Dry soil
Excessive water
Poor seed quality

Sow approximately 2.5–5 cm deep and maintain moderate moisture.

Seedlings Are Weak

Possible causes:

Insufficient sunlight
Overcrowding
Excess moisture

Provide strong sunlight and thin crowded plants.

Plant Is Growing Very Tall and Thin

Insufficient sunlight can produce weak, stretched growth.

Move container plants into a brighter location.

Stem Is Bending

Possible causes:

Strong wind
Heavy flower head
Weak stem
Overcrowding

Use a support stake and provide adequate spacing.

Leaves Are Turning Yellow

Possible causes:

Overwatering
Poor drainage
Nutrient imbalance
Natural ageing

Check soil moisture and drainage.

Leaves Have Holes

Possible causes include:

Caterpillars
Leaf-eating insects
Grasshoppers

Inspect plants regularly and remove visible pests where practical.

Aphids on New Growth

Aphids may gather around tender stems and flower buds.

Inspect regularly and use suitable garden-safe pest management according to product instructions when necessary.

Birds Eating Seeds

Birds may be attracted to mature sunflower seed heads.

If you want to harvest seeds, protect mature flower heads using breathable bags or suitable bird netting.

Sunflower Seed Harvesting

If the objective is to collect mature sunflower seeds, allow the flower head to remain on the plant after flowering.

Signs of maturity include:

Petals drying
Back of flower head turning yellow-brown
Central disc becoming dry
Seeds becoming firm
Flower head beginning to droop

Protect mature heads from birds before harvesting.

Cut the flower head with a portion of stem attached.

Dry it in a dry, shaded and well-ventilated location.

Once completely dry, rub or brush the seeds from the flower head.

Saving Sunflower Seeds for Future Sowing

The current SeedVanam page lists this product as Non-Hybrid and Open Pollinated.

If the seed batch has been correctly identified as open-pollinated, gardeners can save seeds for future planting.

For better seed selection:

If multiple sunflower varieties are flowering nearby, cross-pollination can occur and future plants may show variation.

Sunflower Seeds for Cut Flowers

Tall Sunflowers are excellent candidates for decorative cut flowers.

Harvest when the flower has opened but is not overly mature.

Use clean, sharp scissors.

Cut the stem at a suitable length.

Remove lower leaves that would sit below the waterline.

Place stems in clean water immediately.

Tall sunflower stems can make a strong visual statement in large vases.

Cut Flower Arrangement Ideas

Sunflowers can be combined with:

The yellow sunflower provides a strong focal point in the arrangement.

Why Buy Sunflower Tall Seeds from SeedVanam?

SeedVanam makes it convenient for gardeners across India to buy Sunflower Tall Seeds online.

The current product contains approximately 20 seeds per packet and lists an 85–90% germination percentage. It is also listed as Desi, Native, Non-Hybrid, Open Pollinated and Non-GMO.

Tall Sunflowers are suitable for: