09/01/2026
🍂 9 Perennials To Divide In September for Healthier Growth 🌱
September is the sweet spot for dividing perennials in Central Indiana— cooling temps and still-workable soil make it easy on both you and your plants! Here's your September division checklist:
🌸 **Peonies** — Go gentle when replanting, and don't bury those eyes too deep!
🌼 **Daylilies** — Divide once blooming slows or clumps get crowded.
🌻 **Coneflowers** — Woody, crowded centers? That's your cue.
🌾 **Shasta Daisies** — Flopping or thinning in the middle means it's time. Every 2-3 years does the trick.
🌺 **Bee Balm** — Fast growers that crowd themselves out quickly — stay ahead of it!
🌸 **Garden Phlox** — Every 3-4 years, replant into moist, fertile soil.
🌟 **Coreopsis** — A heavy bloomer that spreads fast. Divide every 2-3 years, and grab the deep clumps.
🍁 **Asters** — Still blooming now, so divide early this month to give roots time to settle before the cooler nights hit.
💜 **Iris** — 4-6 weeks post-bloom, give or take. Split the rhizomes, separate clumps, replant quickly into fresh moist soil, then water lightly to ease the stress.
✂️ **A few tips for success:**
🚿 Water deeply the day before you divide
🌿 Trim foliage back by about 50% to reduce stress
💧 Keep newly divided plants consistently watered for 1-2 weeks after
Dividing isn't just plant maintenance — it's more free plants for your garden (or a friend's)! 🌷
Blessings,
Chris & Jenn 🌱
