What kind of soil does vinca like?
Consequently, does vinca like acidic soil?
Vinca performs best in acidic soil with a pH of 5.4 to 5.8. An alkaline soil with a pH above 6.0 may cause the leaves to turn yellow. A soil test, available at most garden centers, can determine the pH of your soil.
Correspondingly, how do you care for vincas?
Annual vinca is drought tolerant but does best if you water the plants whenever the top inch or so of the soil feels dry to the touch. Take care not to overwater this plant; it's easily susceptible to root rot. Keep potted vinca blooming well by fertilizing regularly with any general-purpose garden fertilizer.
The two most common garden and potting plants given the familiar name periwinkle, Vinca minor and Vinca major, have similar care needs. Both can be grown in the ground as ground cover or in pots as a low-growing and trailing plant that accentuates taller pot plants.