Fertilizing Lilacs

For the best shrub care, fertilize with a well-balanced (10-10-10) fertilizer once in early spring before new growth appears.

NOTE: This is part 4 in a series of 8 articles. For a complete background on how to grow lilacs, we recommend starting from the beginning.

Fertilizing Tips

  • The amount of fertilizer should not exceed 1 tablespoon per foot of height.
  • Apply fertilizer when the foliage is dry so it does not stick and cause burning.
  • Sprinkle fertilizer evenly on top of the soil, over the root zone.
  • Keep the fertilizer 4-6 inches away from the stem.
  • Water lightly.

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Tools & Supplies for Lilacs