Here are the steps to properly water a peony:

Water the plant deeply but infrequently, aiming for a total of about 1 inch of water per week, including rainwater. Make sure to water the root zone around the plant, rather than spraying the foliage with a hose.
Avoid overwatering, which can cause root rot. Be sure to check the soil moisture level before watering. Poke your finger about an inch into the soil. If it feels dry, it's time to water. For grafted tree peonies you want to feel go a bit deeper 3 to 4 inches. You want the water to be around the roots not at the branch of the graft or it can rot the branch.
Water evenly, giving the same amount of water to the entire area around the plant.
Apply a layer of mulch around the plant to help retain soil moisture and prevent evaporation.
Water in the morning to allow time for the plant and soil to dry during the day, which can help prevent fungal diseases. Avoid watering in the evening, which can lead to overnight moisture on the leaves and increase the risk of fungal growth.

Overwatering can be harmful to peonies, causing root rot and stunted growth. Here are some signs that your peony may be overwatered:

Yellow leaves: If the leaves of your peony plant begin to turn yellow and wilt, it could be a sign of overwatering. They may also look droopy and soft.
Moldy soil and roots: Overwatering can lead to a buildup of moisture in the soil, which can cause mold or fungus to grow. Check the soil surrounding the roots of your peony plant to see if it appears moldy or smells musty.
Slow growth or lack of blooms: Overwatering can cause the roots of a peony plant to become waterlogged, preventing the plant from absorbing necessary nutrients. This can lead to slowed growth and a lack of blooms on the plant.
Soft, mushy stems: If the stems of your peony plant feel soft and mushy to the touch, it could be a sign of overwatering. 

If you suspect that you are overwatering your peony, reduce the frequency of watering and allow the soil to dry out between waterings.

Peonies require consistent moisture but can be sensitive to overwatering. Here are some signs that your peony might not be getting enough water:

Drooping leaves: If the leaves on your peony are drooping or wilting, it could be a sign that the plant is not getting enough water.
Stunted growth: If your peony plant is not growing as tall as it should or is not producing large blooms, it could be a sign that it is not getting enough water.
Dry soil: Check the soil around the peony plant. If the soil is dry to the touch, it is likely that the plant is not getting enough water.
Brown or yellow leaves: If the leaves on the peony plant are brown or yellow, it could be a sign that the plant is not getting enough water or that it is being overwatered.

Peonies in pots

Peonies do not like to be potted up but if they must be potted up do not put them in potting soil. The potting soil is often too dense and will likely cause rot. You instead want to use dark fines or do a compost that allows plenty of drainages. It is better to let the water drain and water more frequently then use a soil that retains moisture when planting peonies in pots.

To keep the pots cool and the plant healthier while in a pot you can gid a whole in the ground and put the pot in the ground. This will help keep the pot cool and a environmentcloser to being planted in the ground but the conviences of not being permanently planted in case it is temporary. Recommend putting extra drainage holes.

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Warranty/ Return Policy

We assure you that we will supply you with healthy plants, authentic to their stated variety, and in excellent condition for growth. Additionally, we will deliver them directly to your home at the appropriate planting time. The package will include easy-to-follow instructions for planting as well as you can find them here, although we cannot be held responsible for any losses resulting from extreme weather, neglect, improper care, or unsuitable climate zones (these are clearly specified for each variety), we do guarantee your satisfaction. If you are not completely satisfied, we will happily refund your money if you notify us within 72 hours of receiving your plants.