Height:

5.0-8.0 Inches

Spread:

10.0-12.0 Inches

Hardiness Zones:

4,5,6,7,8

Flower Color:

Red shades

Foliage Color:

Green shades

Sunlight:

Part Shade (4-6 hrs. Direct Sun) Full Shade (< 4 hrs. Direct Sun)

Water Requirements:

Consistent Water Needs

Soil Quality:

Fertile Soil Quality

Soil Chemistry:

Acidic Soil (pH < 7.0) Neutral Soil (pH = 7.0) Alkaline Soil (pH > 7.0)

Bloomtime:

Early Spring Mid Spring Late Spring

Attracts Wings:

Bee Friendly

Growth Rate:

Medium

Garden Style:

Patio Container Cottage Eclectic Woodland Shade

Other Features:

Bog Plant Border Plant Container Cut Flower

Origin:

Not Native to North America

Primroses will produce dazzling flowers each spring if they are well-maintained. They should be planted in areas where they will have consistent moisture but their shallow roots will not dry out. Plants will go dormant in hot, dry summer weather unless they are kept well-watered. Though they are fully hardy in the North, primroses need protective insulation such as snow cover in the late winter months so they are not lost to late hard freezes.

Growing Temperature:

65-70° F

Holding Temperature:

40-50° F

Soil PH:

5.8-6.2

EC (What is EC?):

2.0-3.0

Fertility:

Feed moderately at 100-150 ppm N at each watering.

Vernalization:

Provide 8-10 weeks of temperatures below 45 degrees F for best flower performance.

Pests & Diseases:

Watch for mites, thrip, and aphids.

Potting & Timing:

Plant in late summer to fall under warm temperatures. Grow indoors so as not to introduce cold nights until finished. Once bulked then plants should be vernalized.
Primula will flower under cool temperatures as spring approaches.

Moisture:

Consistant moisture.

Planting Level:

Top of plug level with soil line.

Lighting:

Provide high light levels.