Yuccas can get divided after bloom.

This seems like bad algebra. Horticulturally, dividing and multiplying really are the same. Division is the separation of crowded perennials into smaller but more numerous portions. It multiplies the number of individual plants. The smaller portions perform better than they did while crowded. Division is both a method of vegetative (clonal) propagation, and a form of healthy social distancing.

Many perennials are ready for dividing about now. They finished blooming through spring or summer, and are going dormant for winter. Some defoliate. Division is not so disruptive to them while they rest. Cool and damp weather keeps them hydrated. They can disperse roots and resume growth as winter ends, as if nothing ever happened. They should bloom right on schedule next year.

The most popular perennials grow for many years before getting overgrown enough to benefit from division. Some may technically never need dividing. They manage to perform adequately even as dense thicket growth. For some, division is primarily for propagation. Only a few perennials appreciate annual division. Perennials that bloom in autumn or winter prefer division in early spring.

Pigsqueak will bloom later in winter. Dividing it now with other perennials would inhibit and retard the blooming process. It will be ready for dividing before winter ends, so can settle in with the last winter and spring rain. The same applies to Japanese anemone, which might still be blooming now. Dividing these two perennials is typically for propagation or containment, rather than crowding.

Lily of the Nile and African iris do not need dividing often, but when they do, it can be a major chore. For moderate crowding, it is relatively easy to pluck many individual shoots without disturbing remaining shoots. However, it is typically more practical to dig bulky colonies, divide them into individual shoots, and then plant the shoots. African iris shoots work best in groups of five to twelve.

Lily of the Nile, with dividing earlier than later, disperses roots in winter, to bloom for summer.

2 thoughts on “Dividing Perennials Equates To Multiplying

  1. I’m happier with the plant version of dividing to multiply than the maths version. I have never been able to fathom how a minus divided by a minus can be a plus. It sounds like a great way to propate plants if it worked.

    Liked by 1 person

    1. It can work a bit too well at times. When I was in high school, a neighbor had me remove a colony of common lily of the Nile that was planted as a single shoot about a quarter of a century earlier. It that shoot doubled annually, there should have been 16,777,216 shoots by the time I got to it. Fortunately, there were not ‘quite’ that many, since they did not double annually, and crowded some of their own out. Nonetheless, there were lily of the Nile everywhere by the time I was done with them. That was in about 1984 or 1985. This winter, I will relocate enough for a row along about six parking spaces at work from that neighborhood.

      Liked by 1 person

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