Question
When do I plant trumpet vines, hummingbird vines, or morning glory in N. Mississippi?
Thanks

Answer
Regarding Morning Glory: (these are annual vines in climates where it freezes, but they wll re-seed on their own)
Plant after threat of frost has passed.
They should be planted in full sun. The soil shouldn't be too fertile or moist because those conditions tend to stimulate production of foliage instead of flowers. Fertilizing should be kept to a minimum for the same reasons. After all danger of frost is past, sow the seeds 1/2 inch deep and 8 apart. You may also start the seeds indoors in 3-inch peat pots four to six weeks before the last frost is due and then plant the pots directly into the garden when you can be sure they won't be killed off by a late frost. Success is unlikely if the seeds are started in flats because morning glories resent transplanting. Prior to sowing, the seeds should either be scarified (slightly nicked with a file) or soaked overnight in room temperature water to soften the hull.


Regarding Trumpet Vines (AKA humingbird vines)Seeds should be sewn in fall but can also be planted from cuttings. See these web sites.
http://www.seedsofknowledge.com/trumpetvine.html
http://davesgarden.com/pf/go/644/index.html
http://www.google.com/search?hl=en&lr=&q=trumpet+vines

Good Luck


Sean J Murphy, LA,ISA, LEED AP
Please check out my blogs and articles on landscape topics like this on my websites.
http://www.seanjmurphy.com
http://amenityarchitects.com