Catharanthus is the botanical name for Periwinkle and Vinca
Catharanthus Germination Information

Catharanthus Seed Germination How to Sow Catharanthus:

  • Sow indoors 12 weeks prior to the last frost
  • Cover the seeds with 4 times their thickness in soil
  • Maintain a temperature within the medium of 68-70° F
  • Germination takes 15-20 days
  • Outdoor sowing is NOT recommended

How to Grow Catharanthus:
Spacing: Plant 12 inches apart in full sun to part shade in an average, well-drained garden soil

Temperature:  For best results, grow in a hot, sunny climate

Soil: Keep the soil evenly moist and feed moderately. Do NOT over water the plants

Additional Information: No pinching is required. Heat and drought tolerant; grow as a perennial in Zones 9-10

Appearance and Use:

Periwinkle, or Vinca is often used as a ground cover, in beds and borders, or as a container plant. Plants, 4-18 inches tall, can be bushy and well-branched to spreadingmounds. Rounded, 11/2- inch to 2- inch blooms of white, pink, crimson, and lavender with overlapping petals are borne from summer till frost. The glossy, dark green foliage is 1-2 inches long, and oblong on this upright and spreading plant


About Catharanthus:
Pronunciation:  kath-å-ran’-thus
Lifecycle:  Annual
Origination: Apocynaceae; native to Africa and Southwest Asia
Common Names:Periwinkle and Vinca