The correct method for pruning these shrub-like plants is to cut off all but the newest growth. Prune back tips to about ½ inch from the node. Do not prune the main leader unless you want to grow brugmansia in tree form. If you want a bushy tree, prune lateral branches at the joint.Click to see full answer. Subsequently, one may also ask, how do you trim an angel trumpet?You should only prune your angel’s trumpet in the fall, or immediately after flowering, to avoid pruning off new blooms. When you prune, make sure you leave six to 10 nodes branches above the “Y” of the trunk. This is where new flowers will form. Do not prune below the Y of the plant.Additionally, how do you take care of a Brugmansia in the winter? Store the plant in a cool (above freezing), dark location until spring. Don’t allow the soil to dry out completely through the winter but keep it on the dry side. Check your dormant brugmansia about once a month during the winter. Stick your finger a few inches into the soil, and if it’s bone dry, give it a drink. Herein, how do you look after a Brugmansia? How to Take Care of a Brugmansia Water the plants thoroughly so that the soil stays moist. Apply a 2-inch layer of organic mulch around the base of the plant in dry conditions. Fertilize angel’s trumpet with a well-balanced, water-soluble fertilizer. Supplement the fertilizer with ammonium nitrate. What is the best fertilizer for angel trumpets?Feed young, newly planted angel’s trumpets using a balanced fertilizer with an N-P-K (nitrogen-phosphorus-potassium) ratio of 15-15-15, which will encourage healthy root, foliage and flower growth. Dissolve 1/2 tsp. of fertilizer in a gallon of water. Replace one watering per week with the fertilizer solution.