Fertilising a Phlox paniculata 'Starfire'
To ensure the vibrant blooms and robust health of Phlox paniculata 'Starfire', adequate fertilization is key. It is recommended to apply a balanced, slow-release fertilizer in early spring to support the initial growth phase. A second application should follow just before the onset of the flowering period in early summer. This will bolster the plant's strength to produce its characteristic fragrant blossoms and maintain its upright growth habit.
When fertilizing, spread the granules around the base of the plant, taking care not to let them come into direct contact with the stems or foliage to prevent potential burn. Water the area well after applying the fertilizer to help integrate the nutrients into the soil, ensuring the plant can fully absorb them for optimal growth and bloom production.