How To Plant Allamanda Flower. Restart fertilizing in April and move the plant outside as soon as temperatures are above 60 F. But dont forget that the root area must drain well or the roots will rot.
Allow the plant to rest in winter. Keep the soil moist for one month after planting the shrub to help encourage root growth and establishment. High not less than 60 the plant should be regularly sprinkled with soft water keep the pot in moist peat.
Allamanda appreciates heat on its vines but its roots benefit from a cooler environment.
But dont forget that the root area must drain well or the roots will rot. Perfect for arbors trellises or containers. Yellow pink or red in trumpet-bell shape the flowers grow in cluster. Keep organic mulch around the base of a plant and fertilize twice each month.