How to Grow Passion Flower (Maypop)

Updated on May 6, 2020
OldRoses profile image

Caren White is a Master Gardener and instructor at Home Gardeners School. She has been associated with Rutgers Gardens for over a decade.

A maypop, a passion flower species that is native to the Southeastern United States.
A maypop, a passion flower species that is native to the Southeastern United States. | Source

What is Passion Flower?

The name passion flower (Passiflora spp.) is associated with an entire genus of plants. They are mainly vines. A few are trees or shrubs. Most are native to the area of Mexico, Central and South America though other members of the genus are found throughout the world. The plants are known both for their distinctive flowers and their fruit.

The passion in the name refers to the crucifixion of Jesus. The association was made by Spanish Christian missionaries. Different parts of the plant and flowers were assigned meanings to the story of the crucifixion. For instance, the most well-known is that the flowers’ radial filaments represent the crown of thorns that Jesus was forced to wear.

The passion fruit is the fruit of the passion flower. It is popular both for eating raw and for cooking. The size and flavor of the fruit depends on the species of passion flower that produced it.

P. miniata, a red passion flower
P. miniata, a red passion flower | Source

What is Maypop?

Maypop is the common name given to the passion flower species that is native to North America, P. incarnata, specifically the Southeastern US. It is hardy in zones 5- 8 and can withstand winter temperatures of -4⁰F. It is a vine that grows to 8 feet. The flowers are violet.

Maypop was used as a medicinal plant by the Native Americans. They passed on their knowledge of the plant to the European colonists. The leaves were used fresh or dried to make a tea with sedative properties. There is no medical evidence to support this.

How to Grow Passion Flowers

Most passion flowers are tropical plants. Outside of tropical areas they are grown in containers and brought indoors during the winter.

They will grow in full sun to partial shade. In tropical areas, it is best to plant them in a spot where they will get afternoon shade to protect them from scorching afternoon temperatures. They prefer rich, well-drained soil with a pH of 6.1 to 7.5. They also need to be watered regularly, 1 to 1 ½ inches per week.

Passion flowers are heavy feeders. Plan on fertilizing them every 4 to 6 weeks with a balanced fertilizer.

P. eichleriana, a white passion flower
P. eichleriana, a white passion flower | Source

How to Grow Passion Flowers in a Container

Thankfully for us northern gardeners who love passion flowers, they grow well in containers so that we can bring them indoors during the winter. Use rich potting soil, water frequently (containers dry out quickly) and fertilize often using the same balanced fertilizer. You will need to fertilize weekly because the constant watering needed to maintain your plant in its container also washes away nutrients in the soil very quickly.

Plan on bringing your plant indoors in the fall when night time temperatures fall below 50⁰F. You can overwinter it in one of two ways.

Dormant

A lot of gardeners prefer to allow their plants to go dormant during the winter indoors because they require little care. Store your plant in a cool, dark place such as your basement. It will drop its leaves. This is normal. Water it about once a month. You want to keep the roots moist so that they don’t die. In the spring when night time temperatures are above 50⁰F, you can bring your plant back outdoors and it will start growing again.

As a Houseplant

Alternatively, you can bring your plant indoors and grow it like your houseplants. Since passion flowers need full sun outdoors, you will want to place your plant in the sunniest window in your home. South-facing is best. Water regularly to keep it moist as you did when it was outdoors. Our homes are too dry for these plants so you will need to provide humidity for them either by misting them regularly or by creating a humidity tray.

A humidity tray is a shallow pan that you fill with ornamental gravel (not the gravel form your driveway!) and then fill with water. Place your plant on top of the gravel. As the water evaporates, it creates a humid environment for your plant. Be sure to keep refilling the tray to provide constant evaporation.

You can bring your plant outdoors in the spring when night time temperatures are above 50⁰F.

Passiflora × decaisneana, a hybrid passion flower
Passiflora × decaisneana, a hybrid passion flower | Source

How to Prune Passion Flowers

Passion flowers should be pruned in the early spring. They bloom on new wood which means that the flower buds are formed on the new growth in the current year. If you wait too long to prune, you will risk pruning away the developing buds and end up with few flowers or none at all. While you are pruning, be sure to also get rid of any dead branches.

Passion flowers that die to the ground in the fall do not require any pruning in the spring.

How to Grow Passion Flowers From Leaf Cuttings

You can propagate your passion flower from cuttings using leaves. Choose a healthy leaf on your vine. Carefully remove the leaf from the vine. Do not detach it from its stem. Do not detach the stem from the vine. Instead cut a small slice from the vine that includes the bud from which the leaf and stem grew.

Plant your cutting in a container deep enough so that only the leaf shows above the soil. Place the container in a sunny window and keep the soil moist. When new growth appears, you will know that your cutting has rooted.

How to Grow Passion Flower From Seed

Passion flower seeds can be started any time. They have hard seed coats, so you will need to soak the seeds 1 to 2 days to soften them. After soaking them, surface sow them in a container of pre-moistened soil. Do not cover the seeds. They need light to germinate. Cover the container with a plastic bag to create a humid environment. You can also place your container on a heat mat to warm the soil and hasten germination.

Be patient. It will take a few weeks or a few months for the seeds to germinate. Keep the seedlings out of direct sunlight until they have their first true leaves.

Questions & Answers

    © 2020 Caren White

    Comments

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      • OldRoses profile imageAUTHOR

        Caren White 

        33 hours ago

        Maypops are hardy in your area so you can safely plant them in the ground. There is no need to protect them from the cold in the winter because they are hardy in much colder areas than yours in the Northeast. Enjoy your maypops!

      • MizBejabbers profile image

        Doris James MizBejabbers 

        2 days ago from Beautiful South

        I've seen only the Maypops. They grow wild in the woods next to our house and in the park by the Arkansas River where we like to walk. I had already decided to buy a couple of live plants and grow them. We live in zone 8, maybe on the cusp of zones 7 and 8 because our temperatures usually fall down to the teens at least once during the winter. Should I plant them in pots or can they be planted in a flowerbed and be covered during extreme temperatures? I'm really glad to find this article and have your information. Good job!

      • OldRoses profile imageAUTHOR

        Caren White 

        2 weeks ago

        Yes, most big box stores should have them. They are usually sold as plants. They can be grown from seed but it is difficult to find. Most of them are vines so they will need support such as a trellis or a wall.

      • purl3agony profile image

        Donna Herron 

        2 weeks ago from USA

        Wow, these passion flowers are gorgeous! I've never seen this flower before. Is this plant available for purchase at most big box stores? Do you start them from seed? Your article mentions that they have a long vine, so are they a climber?

      • OldRoses profile imageAUTHOR

        Caren White 

        2 weeks ago

        Truthfully, I've never seen a red one either. I hope that you will be able to replace your passion plant soon so that you can enjoy its lovely flowers.

      • aesta1 profile image

        Mary Norton 

        2 weeks ago from Ontario, Canada

        We used to have passion plants in our garden but sadly, we have not yet replaced it when it died. We enjoyed it so much. I haven't yet seen the red one.

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