Most forget this. 10 critical things you have to do right after your peonies bloom | June 28, 2025

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Most Forget This: 10 Critical Things to Do Right After Your Peonies Bloom

Peonies are cherished for their lush, fragrant flowers and elegant presence in gardens. But once the blooms fade, many gardeners are left wondering: What now?

Don’t stop caring once the show is over. Post-bloom maintenance is crucial to ensure your peonies come back even stronger next year. Here’s a step-by-step guide to the 10 essential tasks you should tackle after your peonies bloom—plus a bonus tip many gardeners overlook.

1. Deadhead Spent Blooms

Deadheading—removing spent flowers—redirects the plant’s energy from seed production to strengthening its roots and foliage.

How to do it: Snip just above the first set of healthy leaves using sharp, clean pruners.
Why it matters: Encourages continued growth and prevents diseases from decaying flowers.

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💡 Bonus: Deadheading throughout the bloom period can extend flowering time for some varieties.

2. Fertilize to Recharge

Blooming takes a lot out of your peony. Replenish nutrients with a balanced, slow-release fertilizer (like 10-10-10).

How: Apply about ½ cup per plant, around the drip line (not touching the stems).
When: Right after flowering ends, followed by deep watering.

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This supports root health and prepares the plant for next year’s blooms.

3. Water Deeply and Consistently

As peonies shift focus to root and foliage development, they need steady moisture.

Watering tip: 1–2 inches per week, preferably via a soaker hose to avoid wetting leaves.
When: Early in the day to reduce disease risk.

Proper watering now means stronger plants and more vigorous growth next spring.

4. Mulch for Moisture and Weed Control

Mulch helps lock in moisture, smother weeds, and regulate soil temperature.

How: Apply a 2–3 inch layer of compost, bark, or straw around the base.
Avoid: Direct contact with stems to prevent rot.

Mulching also adds organic matter to enrich your soil over time.

5. Check for Pests and Disease

Post-bloom is prime time to inspect your plants.

Pests: Look for aphids, thrips, or ants; treat with insecticidal soap or neem oil.
Diseases: Powdery mildew and botrytis are common—remove affected foliage and increase air circulation.

Proactive care now prevents bigger problems later.