How Fast Does A Lilac Bush Grow?

Known for their distinctive, purple blooms, lilacs grow easily and with little maintenance. Providing the right conditions will ensure that your lilacs grow and bloom at full capacity.

Lilacs grow 12 to 18 inches each year. Once fully grown, lilacs typically reach 15 feet high and 10 feet wide, forming an irregular bush.

Although Lilacs can grow in the shade, their flowers grow poorly and severe mildew will likely develop. Grow lilacs in sunny areas for optimal growth, according to the Michigan State University Extension office.

Lilacs grow in virtually any soil, as long as pH levels remain between 6.0 and 7.0. Plant them on hills and elevated areas where soil drains well, according to the Helpful Gardener.