Top 5 perennials to divide in september

As summer winds down on the Cape, your garden is already preparing for next year’s

show. September is the perfect month to divide and replant certain perennials. Cooler

nights and warm soil give roots the best conditions to settle in, ensuring lush growth and

abundant blooms come spring. By taking the time now, you’ll rejuvenate tired clumps,

create more plants for your beds, and set your garden up for success next season.

Here are five perennials you should consider dividing this month:

1. Daylilies

Daylilies can quickly form dense clumps, leading to fewer blooms. Dig them up, split into

smaller sections, and replant. They’ll reward you with stronger growth and brighter

flowers next summer.

2. Hostas

If your shady spaces are overrun with hosta clumps, September is the time to thin them

out. Dividing hostas gives you fresh starts for filling in gaps and keeps existing plants

vigorous.

3. Irises (Bearded Irises especially)

By late summer, iris rhizomes can crowd each other out. Dividing now reduces disease

risk and ensures a stunning display of blooms in late spring.

4. Coneflowers (Echinacea)

These pollinator favorites thrive when divided every few years. Splitting them in

September gives each plant more room to expand, ensuring a healthier stand of blooms

for bees and butterflies.

5. Black-Eyed Susans (Rudbeckia)

If your Black-Eyed Susans are spreading fast or blooming less, division will help

manage their growth. Replant divisions to enjoy a cheerful carpet of gold next season.

�� Tip: Water newly divided plants well and mulch around them to help roots establish

before winter.

At Scenic Roots Garden Center, we carry everything you need to make the job

easy—from Coast of Maine soils and Espoma fertilizers and lawn care

products to refresh your yard for fall. As a Proven Winners Certified Garden Center,

we’ll help you choose the best varieties and ensure your garden is ready for next year’s growth.