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How to care for Primula acaulis flowers

Updated November 21, 2016

Primula acaulis, commonly called English primrose, is a perennial which thrives in partial shade. English primrose plants will grow to approximately 22.5 cm (9 inches) tall. Their relatively low height makes them a good choice for flower borders, small accent flowers or container gardening. The flowers grow in tight bunches and bloom in the spring. They appear in hues of yellow, blue and purple. English primrose can be grown all over the British Isles.

Use a sun meter to record the amount of sunlight your garden receives during the day. Place the stake of the sun meter into the planting area. Leave the sun meter in the ground all day. Read the results of the sun meter. If the sun meter does not read partial sun, look for another area to plant the primrose.

Prepare the soil by laying down a 5 cm (2 inch) thick layer of organic compost. Use a garden rake to push the compost down into the top 10 cm (4 inches) of soil. Primula acaulis has a very shallow root system. They will only use nutrients from the top of the soil.

Plant the primrose by digging a hole, the same size at the plant's root system, with a garden spade. Place the primrose into the hole, and back fill with soil.

Water your primrose plants with a garden hose every day during the growing season. The top 5 cm (2 inches) of soil needs to be wet at all times. Place your finger down into the soil to check for moisture. If the top 5 cm (2 inches) of soil is not moist, your flowers need additional water.

Dissolve a complete water soluble fertiliser in a bucket of water. Pour the fertiliser into the soil near the primrose plant's root system. Feed the plants once a month during the growing season. Discontinue feedings when the plant becomes dormant in the cold weather.

Lay a 7.5 cm (3 inch) thick layer of mulch around the base of each primrose plant before the weather turn cold in the fall. The heavy layer of mulch will keep the plant warm over the winter.

Things You'll Need

  • Sun meter
  • Organic compost
  • Garden rake
  • Garden hose
  • Complete water soluble fertiliser
  • Bucket
  • Mulch
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