Purple flowers contrast beautifully against green foliage for a striking yard. These options are ideal for shadier garden ...

How to Identify Periwinkle Flowers Periwinkle flowers (botanic name Vinca minor) grow as a ground cover in Zones 4 to 9. They typically reach heights of up to 6 inches, and widths of between 6 and 18 ...

Plant biotechnology articles from across Nature Portfolio Plant biotechnology can be defined as the introduction of desirable traits into plants through genetic modification.