It doesn't need dividing and spreads eagerly.

Since they have been there only one year, it is unlikely they will need dividing.

I note that all of them need dividing.

If the flower border has some thick root mats that need dividing, there is also still time.

Several of the perennials had developed such broad clumps of roots that they needed dividing.

Though rugged perennials, daylilies do need dividing after a few years.

This is a good time to repot house plants if they are root-bound or need dividing.

Once planted well, peonies seldom need dividing or transplanting.

Clumps of dicentra remain compact for many years and do not need dividing.

The daffodils can stay in place for many, many years before they will need dividing.