Brunfelsia americana – Plant

Most plants need a regular "diet" of all-purpose plant food, either specialty (labeled for your specific plant type) or a generic N-P-K (nitrogen – phosphorus – potassium) Fertilize early in the plant's growing cycle – spring for summer plants, fall for winter plants. For leafy plants, use a fertilizer with a higher nitrogen content (first number)
For flowering or fruiting plants, use a fertilizer higher in phosphorous content (middle number)If using a water soluble fertilizer:1.Mix as directed on container according to directions
2.Wet the leaves and drench soil
3.Repeat
If using a granulated fertilizer:
Scatter a small amount of all-purpose fertilizer lightly under plants from the stem to beyond the outer spread of branches or foliage.
2.Water slowly and deeply.
NOTE: Never over fertilize! You will see lots of weak, leafy growth and few flowers