Q: I recently added a new peony to my garden, joining a couple of others I already have. Unfortunately, my existing plants haven't flowered as much as I expected. I want to ensure my new peony thrives, but I'm uncertain if fertilization is necessary for better blooms. When should I fertilize and how?
A: Peonies are cherished for their large, eye-catching blooms that appear in early summer. They're relatively low-maintenance once established, but be cautious about relocating them once they're settled, as they typically take a couple of years to recover from being moved. Ensure they remain in well-draining, moist soil, and keep them hydrated during hot spells.
To encourage robust flowering, pampering your peonies with fertilizer might be beneficial, especially for your new plant. Understanding how and when to fertilize peonies can greatly enhance their performance.
How to Fertilize Peonies
Provide peonies with nutrient-rich soil for optimal growth and a bounty of blooms. Apply a general-purpose fertilizer each spring to stimulate growth. In the fall, enhance the soil with a layer of garden compost or well-aged manure.
'A high potassium fertilizer, such as a 5-10-5 ratio, is ideal for promoting flower development,' advises a gardening expert. 'Alternatively, a balanced 10-10-10 fertilizer will also work, ensuring your plants receive appropriate nitrogen, phosphorus, and potassium levels. Nitrogen supports foliage while phosphorus and potassium boost vibrant flowers.' This Expert Gardener all-purpose fertilizer from Amazon fits the bill with its 10-10-10 ratio.
Using a slow-release fertilizer is crucial to ensure your plants receive nutrients over time, as highlighted by a gardening specialist. Granular top dressing is preferable to liquid feeds. If you opt for natural fertilizers like bone meal or chicken manure, they can be applied throughout the growing season without the risk of over-fertilizing your peonies.

Ben is a gardening consultant who provides expert tips on plant care.

With proper fertilization, your peonies can yield numerous stunning blooms.
When to Fertilize Peonies
Fertilize peonies twice annually. Start in spring when new shoots appear but before flower buds develop, then again in fall to strengthen roots before winter.
'Early spring is the ideal time to fertilize, just prior to bud swelling,' shares a plant care expert. 'In the fall, apply a layer of compost or aged manure, avoiding high-nitrogen fertilizers that can lead to excessive foliage growth at the expense of blooms.'
Initially, water the soil around the plant thoroughly. After applying fertilizer, water again carefully, ensuring the stems and leaves aren't touched, allowing nutrients to penetrate the soil.
Stick to a spring and fall fertilization routine for the first few years after planting. As your peonies mature, they may only require fertilization every three years, or you may even stop if they're thriving.

Spring and fall are the key fertilization periods for peonies.
FAQs
Can fertilizing increase flower production in peonies?
If your peonies aren't flowering well, several steps can help boost their blooms. Great soil, proper fertilization, and adequate watering during hot weather are crucial for optimal care.
Consider enhancing the soil. 'For better flowering, apply a general fertilizer or bone meal in the fall and again in spring, especially in poor soils,' suggests a gardening expert. 'Mulch around the roots, but avoid covering the crowns.'
Fertilizers that promote flowering can be advantageous, particularly those with higher phosphorus content to stimulate bloom production.
'Removing spent flowers can encourage new shoots and enhance flower output throughout the season,' recommends a gardening consultant. Keep an eye on your plants and deadhead flowers that have faded.

What are the top fertilizers for peonies?
If your peonies are struggling to produce buds or flowers, the issue might lie with the fertilizer. While specialized peony fertilizers are rare, both bulb and perennial fertilizers work effectively. Opt for a balanced fertilizer or one lower in nitrogen to avoid excessive leafy growth.
'Balanced, slow-release fertilizers that provide equal nitrogen, phosphorus, and potassium are excellent choices for most peonies,' advises a gardening expert. 'These formulas release nutrients gradually, helping prevent over-fertilization.'
This GreenView Multi-Purpose Fertilizer from Amazon is a balanced option with equal nitrogen, phosphorus, and potassium content.
Regular fertilization is beneficial for peonies, but always follow instructions to avoid over-application. Remember, feeding is just one aspect of caring for these beautiful flowering plants; knowing when to prune, deadhead, and manage watering is essential for healthy growth.