Primula x polyantha: How To Grow and Care For Primrose Flower

Primula x polyantha, also known as “Primrose Flower,” is a tough perennial flowering plant in the Primulaceae family. It sprouts deep green leaves with crinkled edges. Primroses bloom during spring and last through summer, producing flowers with colors ranging from red, orange, and pink to white, cream, and light yellow.

Primula x polyantha
PlantMaster

Mostly grown as an outdoor plant, primrose flowers are great for use as border plants. Primroses are finicky when it comes to indoor cultivation, as they mostly do not survive for long after the blooming period is over. The best way to preserve your primrose house plants will be by transferring them and planting them outside after the blooming season is over.

Primrose is native to parts of Africa, Europe, and Asia. Under the right growing conditions, primrose can reach a height of 6 to 20 inches and a spread of 8 to 20 inches.

The raw leaves of primrose are considered toxic to both pets and humans. It is advisable to always use protective coverings such as gloves when handling its leaves as they cause irritation.

Scientific name Primula x polyantha.
Common name Primrose Flower.
Origin Native to Northwest Africa, Northern and Southern Europe, 
Size 6 to 20 inches in height, 8 to 20 inches in width.
Lighting Bright indirect light.
Soil Moist but also well-draining soil.
Temperature 50 – 65 degrees Fahrenheit ( 10 – 18 degrees Celsius). 
Fertilizer Diluted well Balanced fertilizer.
Toxicity Toxic.
Propagation Root division.

Primrose Flower Care

Primrose Flower Care
Blomidon Nurseries

Primroses are considered short-lived plants when grown indoors.

Growing and caring for the primrose flower as an indoor plant can be challenging. This is because the plant dies off after the flowering season is over.

But with the right growing conditions, you can extend the life of the plant.

Light Requirements

Primroses grown indoors require a daily supply of bright, indirect, or filtered sunlight. Avoid exposing the plant to direct sunlight to prevent wilting. Place your primrose close to an east-facing window so it can receive the weak early morning sunlight.

For outdoor growth, ensure your primrose is located in a shaded area. The plant can withstand both partial to full shade, provided it is in a bright location.

Soil Requirements

The primrose plant loves a nutrient-rich potting mix that’s capable of draining fast and, at the same time, remaining moist. Avoid soggy soil as primrose roots are susceptible to root rot.

When growing in pots indoors, make a potting mix using part soil, part perlite, and part peat moss to create a well-draining soil. Also, add organic compost to the pot to help increase soil acidity.

For outdoor cultivation, always ensure the soil is kept moist.

Water Requirements

Water Requirements
Garden Chronicle

Provide your primrose plant with just enough water to keep the soil moist. Waterlogged soil can cause root rot and wilt.

Do not over or underwater your primrose plant, irrespective of whether it is being grown indoors or outdoors.

For those grown in pots, make drainage holes underneath the pot to help drain out excess water.

Fertilizer Requirements

Feed your primrose plants using a well-balanced fertilizer or manure. For indoor growth, apply the diluted fertilizer once a month during the growing season.

For outdoor growth, use a well-balanced fertilizer such as 10-10-10 and apply it at the base of the plant.

You can also use diluted organic manure such as cow dung or mustard cake to feed the plant.

Temperature And Humidity

The primrose grows better in a warm and humid environment. The ideal temperature for growing this plant is around 50–65 degrees Fahrenheit (10–18 degrees Celsius).

Higher temperatures can cause wilting, so ensure you move the plant indoors when the summer heat becomes too much.

The primrose loves humidity, so try to maintain a humid environment for your plant. Place the plant on a pebble tray to help boost its humidity level.

Pruning

Pruning
The Spruce

Carry out deadheading by pinching off dead and faded flowers from the primrose plant. This will help the plant focus all its new energy on growing new leaves other than flowers.

Clean up your primrose plant by cutting off any old and dead stems or leaves from the plant. You can also prune primroses to your desired size by cutting off unwanted or extra long stems.

Propagation

Propagating through root division is easy and faster compared to other methods like seeds.

The first step involves getting a primrose plant, preferably one that’s done with flowering. Completely remove the plant from its pot.

Remove every bit of soil from the roof of the plant. Divide the root into parts and plant each individual part in a separate pot.

Water the plant, and after a few weeks, it should start producing leaves.

Common Health Problems/Pests And Diseases

Primroses grown outdoors are less likely to be attacked by pests compared to those indoors.

Common pests affecting this plant include aphids, leafminers, mealybugs, and spider mites. This pest can be controlled by spraying insecticidal soaps on the plant’s leaves.

Common health problems include root rot caused by overwatering and leaf wilting caused by either excessive sunlight or underwatering.

FAQs

Is Primula x polyantha toxic to pets?

Yes. Primula x polyantha leaves are toxic to cats and dogs if ingested, and can also cause irritation to humans if handled carelessly.

How large can a primrose grow?

Primrose can grow between 6 to 20 inches in height and 8 to 20 inches in width.

What family does Primula x polyantha belong to?

It belongs to the Primulaceae family.

Is Primula x polyantha a perennial flowering plant?

Yes. Primula x polyantha is a hardy perennial plant.

How much sunlight does my primrose need?

When growing indoors, provide bright and indirect sunlight for your plants. Place it under partial or full shade when growing outdoors.

Marijke Puts
About Marijke Puts
Marijke Puts has Bachelor’s Degree in Communication Science and is from The Netherlands. She has a certified master gardener and loves everything about houseplants and gardening.

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