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When To Plant Sunflower Seeds?

  • Amy 

When should I plant sunflower seeds?

The best time to plant sunflower seeds is when the soil temperature is between 50°F and 70°F. If you wait too long to produce them, they won’t germinate.

Also, don’t plant them too early because they need at least four weeks to mature.

Moisture levels are also necessary. You want to keep the soil moist until about two weeks before planting. Then, water the seedlings only if the soil dries out.

Your planting depths will depend on how big your plants grow. For example, if you’re raising small sunflowers for a bouquet, you can sow the seeds in the ground.

But if you plan to grow larger ones, it’s better to cover the seeds with an inch of dirt or compost. It will help protect them from birds and other predators.

The abundance of flowers

An impressive, long-lasting flower is one of the main reasons people choose sunflowers as their favorite flowers.

Sunflowers have been since ancient times, used by Egyptians, Greeks, Romans, Chinese, Indians, and many others.

The word “sunflower” comes from solidus Florida, meaning “the flower of the sun.”

There are several types of sunflowers: single, double, and giant varieties. Single sunflowers have one large head that grows above the rest of the plant.

Double sunflowers have two heads, and giant sunflowers have three or more leads.

Single sunflowers are usually planted in springtime, while double and giant sunflowers are well-sewn in fall.

You may notice that some sunflowers have red petals, whereas others have yellow ones. These differences are due to different genes.

Sunflower seed starting tips.

The choice for flower gardens

There are wide varieties of sunflowers with different shapes, colors, and sizes. Some types of sunflowers are more popular than others. Here are some of the most common:

  • Perennial sunflower

The perennial sunflower has been around for many years. It produces flowers all year round. 

The flowers look like daisies.

They come in shades of yellow, orange, red, pink, purple, white, and blue. These flowers are easy to grow indoors or outdoors. They need little maintenance.

  • Cheerful sunflowers

These happy flowers are the nation’s best-loved flowers. Their bright colors make them fun to grow. 

They produce large blooms.

You can find cheerful sunflowers in various colors such as yellow, orange, red, and white. They are very hardy. They do well in both sunny and shady areas.

  • Tall sunflowers

If you love tall sunflowers, then this is the variety for you. They grow up to five feet tall. Tall sunflowers are great for cutting.

You can use these flowers for bouquets, arrangements, and even wreaths. They bloom in late summer and fall.

  • Moss sunflowers

This type of sunflower looks like moss. Moss is grown for its attractive foliage. They can be as cut flowers.

They can grow up to three feet tall. Moss comes in various colors, including green, brown, gray, and white.

  • Dwarf sunflowers

These flowers are 10 inches tall. It is a shorter varieties of sunflowers in pots. 

Dwarf sunflowers are good choices for hanging baskets.

They are well-planted in groups.

  • Perennial sunflower seeds

The Perennial Helianthus is a sunflower variety that grows into a bushlike shape. Its leaves turn gold in autumn.

It does well in full sun and partial shade. It requires no fertilizer.

Sow the seeds in spring and transplant them once they sprout.

Seedlings are transplanted after the danger of frost has passed.

  • Maximillian sunflower

It is a Mexican sunflowers that has a unique color pattern. It is known for its beautiful hues of golden yellow, bronze, and orange.

It is a fast-growing sunflower. It takes less space than other sunflowers.

  • Mongolian sunflowers

The Mongolian types of sunflower are for mid-spring flowering. They have a rich fragrance.

They are easy to grow because they don’t need much attention. It is drought tolerant.

It has edible flower buds. You can eat them raw or cook them.

Choose the right soil.

Choose a rich loam that drains well when planting golden flowers in your garden.

If you live in an area where summers are hot and dry, add some organic matter to improve drainage.

You may also want to add sand or perlite to ensure the soil stays moist.

Average garden soil has enough nutrients to support a healthy crop of sunflowers. But if you have sandy soil, you may need to fertilize your plants.

Other types of soil,

  • Acidic soil

If your soil tends to be acidic, you’ll need to apply lime as soon as possible after planting.

It helps neutralize any excess acidity.

Lime is available at nurseries and home improvement stores.

  • Well-draining soil

A well-draining soil is essential for growing sunflowers. The roots must be able to absorb moisture.

If your soil doesn’t drain well, you may need to amend its pH level.

  • Alkaline soil

It is a type of soil that contains high amounts of alkali (sodium). Alkaline soils tend to be hard and compacted.

To remedy this problem, you’ll need to add plenty of organic matter.

  • Fertile soil

For weak stems, use a fertilizer such as 10-10-20.

Use a fertilizer that works for your specific needs.

Check the label for information on the amount of nitrogen, phosphorus, potassium, and trace elements your particular variety needs.

Make sure you follow all directions. Fertilizer labels often include warnings.

  • Jug with potting soil /Jug with soil

Start with a jug full of potting soil if you’ve never tried growing sunflowers before.

This way, you can practice watering and care for the plants without risking damage to your lawn.

  • Mid-June in well-drained soil

Sow your seeds in mid-June.

Depending on the weather conditions, it could take three days to a week for the seeds to sprout.

You might even get a few sprouts in warm climates within 24 hours.

Keep weeds away

To prevent weed problems, use a mulch layer around the base of each plant.

It will slow down the growth of weeds and keep moisture in the soil.

You can also plant your seeds in raised beds. These allow air to circulate through the plants.

Compost before planting

For consecutive plantings, you should avoid a dry spot between sowing.

Soak your seeds in water overnight before planting. It prevents them from drying out and cracking when grown.

Two days after planting. The first leaves appear about two days after germination.

They look like small green lumps.

Keep the soil moist but not wet. If the soil dries out too much, the roots may rot.

Protect your flowers and plants from slug

Using organiciron phosphate-based slug bait kills slugs and snails.

Slugs and snails feed on young seedlings and blossoms. The best time to treat your yard is during spring and summer.

Apply the bait once every month until the threat disappears.

Treat your garden with insecticide spray.

If you’re concerned about insects eating your sunflower seedlings, you can protect them with an insecticide spray.

The most common pests are aphids, whiteflies, and spider mites.

Spray your plants at least twice per season.

The first application usually occurs in late May or early June.

Wait a couple of weeks before applying again.

The final verdict

Planting sunflowers is easy if you have good soil, ample sunlight, and patience.

Sunflower seeds are cheap, and they grow.

But don’t expect instant results. It takes several months before you see any flowers.

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Amy Toliver

Hey'all I'm Amy, a born foodie and diagnosed with celiac disease 7 years ago. I refused to cave into tasteless, boring gulten free food and create my own! On my blog you'll find info & cool facts along with recipes, all on gluten free foods!