Our results suggest that the rate of evolution of reproductive character displacement in I. Most notably, the response to selection for reduced separation of the tallest and shortest anthers, which reduces the degree of detrimental heterospecific pollen flow, is substantially constrained. We also demonstrate, using new statistical approaches, that the predicted response to selection for four of these six traits is substantially constrained by their genetic correlation structure. ![]() We found that the six floral traits we measured are all positively genetically correlated. To assess the importance of genetic constraints for the evolution of character displacement, we examined the genetic architecture of a suite of floral traits previously shown to be under selection in the annual plant Ipomoea hederacea when this species co-occurs with Ipomoea purpurea. However, the rate and direction of character displacement will depend not only on the strength of selection for trait divergence, but also on the amount of genetic variation for selected traits and the nature of genetic correlations between them. Maintain a temperature in the growing medium of 68°-86° until germination, which only takes 5-7 days.Evolutionary theory predicts that interactions between species such as resource competition or reproductive interference will generate selection for character displacement where similar species co-occur. Morning Glories resent transplanting, so for the best results, plant the seeds in 3" peat pots which can be dropped in the garden without disturbing the roots. Start your Morning Glory seeds indoors, 4-6 weeks before your last killing frost. apart in the gardenĪfter all danger of frost has passed in the spring. Sow the seeds 1/2 inch deep and up to 8 ft. In room temperature water for 24 hours to soften the hull. Prior to sowing, Morning Glory seeds should either be scarifiedīy gently nicking the hull with a file, or the seeds can be soaked Stem cuttings taken during the summer months. Propagating Morning Glory Vines and Growing them from Seed Perennial species of Morning Glory can easily be propagated with The soil shouldn't be too fertile nor kept too moist because these conditions tend toįertilizing should be kept to a bare minimum for the same reason. ![]() Morning Glories thrive in conditions that won't support most ornamental, landscape plants. Provide a trellis, arbor or other structure for your Morning Glory to climb on at planting time. Morning Glories should be planted in an area where they will receive full sun for most of the day. Growing Requirements for Morning Glory Plants They may die in the winter, but Morning Glories readily re-seed themselves each year,Īnd will rapidly cover your fence the next spring. Morning Glory flowers will attract both hummingbirds and butterflies to your gardens. Moon Flowers may also open on overcast days. The Moon Flower, Ipomoea alba is a night blooming species with fragrant white flowers. Sometimes fragrant flowers from early summer until the first hard frost.Įach flower only lasts for a single day or night. They produce a non-stop show of large, blue, pink, purple, red, or white trumpet shaped, Morning Glories are very fast growing plants, that depending on the species, may be annual or tender perennial vines with light green, heart shaped leaves. If you want to cover your fence FAST, the best choice would probably have to be Morning Glories. I suppose that Clematis plants or Passion Flower Vines would be too slow as well. Since Honeysuckle vines don't grow fast enough for you, I already have yellow, orange, and red Honeysuckle, but they don't grow very fast." ![]() I am interested in flowering vines that grow fast and attract hummingbirds and butterflies. I have a 9 foot, chain-link fence in my backyard, and I would like to cover it with vines. Ipomoea species DrScream2 wrote: " Hey, I would need to what are the best vines for covering a fence.
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