Convolvulus Species, Ground Morning Glory

On Apr 17, 2012, nifty413 from Garland, TX (Zone 8a) wrote:

This plant has survived many challenges here in my Zone 8a garden: the worst single-year drought ever recorded combined with the greatest number of 100°F+ high temperatures in a calendar year – without any supplemental irrigation (it went dormant); a recorded low temperature of 11°F; heavy clay soil with limestone fragments (relatively high pH).

On Apr 5, 2010, peejay12 from Porthleven, Helston, Cornwall,
United Kingdom (Zone 9b) wrote:

This is a real gem of a plant - an evergreen, fast growing ground cover with a constant supply of flowers.

I live in a zone 9b area, and In the right conditions, ie full sun, well drained soil, this plant can grow five feet across or more, and flowers all summer. In warmer climates it might be invasive -- but who cares? It spreads by underground stems which pop up a foot or so from the main plant. These make good cuttings.

For five years my two plants made a spectacular display, but an unusually severe frost of -6 C killed both plants. Later on I grew a lot more and these survived every winter - I plant them everywhere. As R Weiler said, sometimes they refuse to grow and die off (?)

The flowers open sky blue and then change to a more violet ... read moreblue, and the combination is superb.

A dark form is available which I must try.

Edit: one of my plants is 6 years old now, and the gravelly sandy soil suits it, because it is now 10 feet across.

On Aug 15, 2005, rweiler from Albuquerque, NM wrote:

I was excited to find these in my local Albuquerque nurseries. I planted 2 (gallon size) in different locations, 1 fun sun and one partial. One died suddenly after one month, from seemly healthy to dried up completely in 4 days. The other has been fantastic for 4 months. Then again suddenly, died the same death in 4 days. I am baffled. I was wondered I had overwatered, but in dry, 90 degree NM weather it is extremely hard to overwater. I hope you have better luck!