Growing Sunflowers in Pots – facts about sunflowers

The sunflower has a tall, thick stem crowned by what seems like a single giant flower. Interestingly, this flower is no flower at all;  but a constellation made up of hundreds of small flowers called the sunflower head.

sunflower in Arizona
sunflower in Arizona

Although the sunflower head resembles a huge flower with yellow petals and a brown center, it is actually the brown that is the constellation of flowers, with the yellow leaves acting more as a protectant to the sunflowers during the flowering and seed development phases.

happy sunflower field
common sunflower

The sunflower’s cheery facade plus its sheer height make it a wonderful plant that everybody will enjoy, either in the vegetable garden or at the back of a flower bed.

Sunflower in pots
Arizona Sunflower in a container

A sunflower can grow to become well over 10 feet (3 meters) tall and the head can become quite wide. Once open,  the sunflower head will start to follow the sun while it is moving across the sky.

species of sunflowers
Large Sunflower Head of “LEMON QUEEN” variety

The flowers in the center of the sunflower will then start to grow fruits, sunflower seeds, and after a while these seeds will loosen and scatter across the ground.

Once that is done, the life cycle is complete and it will eventually wilt and die so that the new seeds can grow to become sunflowers in the next growing season.

When growing sunflowers it is important to consider where you want to plant them because they will need full sun to mature successfully. Many people grow sunflowers close to walls since the sunflower can be quite sensitive to the wind;  but, planting close to a wall will unfortunately come at a loss.

sunflower with multiple buds, blooms

Sunflowers are sensitive to the amount of sunlight they obtain, and how much water required to optimize their growth.  Too much water may result in the soil loosening and becoming far too unstable to support the weight of the sunflower head as it sways in the wind.

wild sunflowers arizona
SONJA sunflower variety

Planting a larger grouping of sunflowers has the benefit of helping to stabilize the immediate area of soil and helps to create some barrier to wind damage. I put stakes into the ground close to the sunflower stem making sure it stands strong and stable on its own. Next, you can tie small pieces of thick string,  florist ties or velcro around the stake and the sunflower, thus helping them to support each other.

sunflower in container
sunflowers in pots

Currently we have several sunflowers growing in large pots.  Sunflowers do not do well if they sit in water so it is important that your pot or garden container drains well. You can use a layer of sand or rocks in your container. The garden soil you choose needs to be full of nutrients.

When placing your sunflower seeds in a pot, do not put them close together. Depending on the size of your container, space them at the minimum of 3 inches apart.

Typically, sunflowers, Helianthius annuus, require absolutely no pruning at all.

sunflower seeds to harvest
sunflower seeds to harvest

To enjoy the seeds of your sunflowers here are simple harvesting tips:

  • When the backside of the sunflower head turns yellow be sure to protect them from birds, squirrels and other animals that eat sunflower seeds!
  • Once the back of the sunflower head is brown it means time to harvest!  Cut the head off about 12 inches down the stem
  • Then rub the head using your hand and the sunflower seeds will fall off
seeds ready
sunflower seeds ready to harvest

extra tidbit:  If pressed, sunflower seeds will give you sunflower oil. This oil can be used for many purposes and ongoing research is mapping new and improved uses every day. First of all, sunflower oil is great in cooking and will give food a very mild but distinct taste, similar to mild olive oils. Sunflower oil can also be transformed into lubricants for engine parts and can even work as a fuel for engines.

Advertisements

Author: tjsgarden

We are a family that loves the Arizona Desert. A lot of research and team efforts go into our articles and photos. Come discover the beauty and mystery with us. Don't forget your sunscreen!

1 thought on “Growing Sunflowers in Pots – facts about sunflowers”

We love your comments and questions!

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s