How to Fertilize common foxglove?
Fertilize common foxglove sparingly with high-phosphorus fertilizer to bolster blooming; apply once in early spring and again when flower spikes form. Over-fertilization can harm common foxglove, so no more than 1/2 teaspoon per plant is necessary. Be mindful of run-off, particularly in alkaline soils. Variations in fertilization during dormancy or active growth are not required for common foxglove, as excessive feeding can lead to foliage at the expense of flowers. Water common foxglove thoroughly after fertilizing to aid nutrient absorption and mitigate root burn.
