Guide

Split your spirea by digging up an outer rooted section in early spring — it keeps the parent intact and gives you a strong new plant with less effort than splitting the whole shrub.

Learn if you can split salvia to get free plants, when to divide, how to do it step by step, and common mistakes to avoid for healthy perennial salvias.

Yes, established phlox clumps can be split by division—a standard technique that rejuvenates overcrowded plants, improves blooming, and creates new free plants for the garden.

Can you split dianthus? Yes, and the best time is early spring or right after blooming. Learn how to divide perennial pinks step by step.

Learn whether you can split coral bells, the best time of year to divide them, and the step-by-step method that gives new plants the best chance of thriving.

Yes, coneflowers can be split or divided every three to five years to rejuvenate the clump, though the best timing depends on the species and your local climate. A crowded coneflower clump that blooms fewer stems each year is telling you it needs room. Splitting the root ball into several pieces does two things at

Learn if you can split Astilbe and how to divide it every 3 to 5 years for healthier plants and more blooms — with step-by-step instructions.

Can you split a hibiscus plant? Yes, if it’s a hardy perennial type—divide it in fall or spring for healthy new plants.

Can you split a clematis plant? Learn the risks, best timing, and step-by-step method for dividing mature clematis successfully.

Grow more petunias for free by rooting stem cuttings in water — here’s the exact process and timeline.