Updated: June 15, 2023

Hydrangeas are popular flowering plants known for their big, showy blooms that come in a variety of colors. They are a great addition to any garden or patio, but what if you don’t have much outdoor space? The good news is that you can still enjoy the beauty of hydrangeas by growing them in pots. In this guide, we will walk you through the steps of successfully growing hydrangeas in a pot.

Choosing the Right Pot and Soil

When selecting a pot for your hydrangea, opt for one that is at least 16 inches in diameter and has drainage holes at the bottom. This will ensure proper drainage and prevent waterlogged roots.

Hydrangeas prefer well-draining soil. Use a high-quality potting mix that is rich in organic matter. You can also add some perlite or sand to improve drainage. Avoid using garden soil as it may contain pests or diseases that could harm your plant.

Selecting the Right Hydrangea Variety

Not all hydrangea varieties are suitable for container gardening. Look for compact or dwarf varieties that are specifically bred for growing in pots. Some popular choices include ‘Little Lime,’ ‘Bobo,’ ‘Cityline Paris,’ and ‘Endless Summer The Original.’

Consider the size of the mature plant when choosing your hydrangea variety. You don’t want a plant that will outgrow its pot quickly and become root-bound. Compact varieties are more manageable and will thrive in containers.

Planting Your Hydrangea

Fill your pot with the prepared potting mix, leaving enough room at the top for watering. Gently remove your hydrangea from its nursery container and place it in the pot, making sure it is centered and at the same depth as it was before.

Backfill the pot with more potting mix, gently pressing it down to eliminate any air pockets. Leave about an inch of space between the top of the soil and the rim of the pot to allow for watering. Water thoroughly after planting to settle the soil.

Providing Proper Care

Watering

Hydrangeas like consistently moist soil, but they don’t tolerate soggy conditions. Water your potted hydrangea regularly, especially during hot and dry periods. Aim to keep the soil evenly moist, but not waterlogged.

Check the soil moisture by sticking your finger about an inch deep into the soil. If it feels dry, it’s time to water. Avoid overhead watering as it can lead to fungal diseases. Instead, water directly at the base of the plant.

Fertilizing

Hydrangeas benefit from regular feeding during the growing season. Use a balanced, slow-release fertilizer in early spring and late summer. Follow the instructions on the fertilizer package for proper application rates.

Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of flower production. Yellowing leaves or burnt leaf edges can be signs of overfeeding.

Pruning

Pruning hydrangeas is essential for maintaining their shape and promoting healthy growth. The timing and method of pruning depend on the type of hydrangea you have.

For mophead and lacecap hydrangeas (Hydrangea macrophylla), prune them immediately after they finish flowering. Remove any dead or weak wood and cut back about one-third of the old stems to encourage new growth.

For panicle hydrangeas (Hydrangea paniculata), prune them in late winter or early spring before new growth emerges. Remove any dead or damaged wood and cut back about one-third of the previous year’s growth.

Protecting from Extreme Temperatures

Hydrangeas are generally hardy plants, but extreme temperatures can stress them. During hot summers, move your potted hydrangea to a spot with afternoon shade to prevent wilting and scorching.

In cold climates, protect your hydrangea from freezing temperatures by moving it indoors or into a sheltered area. Mulching around the base of the plant can also help insulate the roots during winter.

Troubleshooting Common Problems

Yellowing Leaves

Yellowing leaves can be a sign of overwatering, underwatering, or nutrient deficiencies. Ensure you are watering your hydrangea correctly and feeding it with a balanced fertilizer as needed. If the problem persists, check for pests or diseases.

Lack of Blooms

If your hydrangea is not producing blooms, it may be due to insufficient sunlight or improper pruning. Hydrangeas require at least 4-6 hours of direct sunlight per day to bloom. Adjust the location of your potted plant accordingly.

Improper pruning can also affect blooming. Make sure you are pruning at the right time and using the correct method for your hydrangea variety.

Enjoying Your Hydrangea’s Beauty

With proper care and attention, your potted hydrangea will reward you with beautiful blooms throughout the growing season. Whether placed on a patio, balcony, or small garden, these gorgeous flowering plants will add color and elegance to any space. Follow this guide, and soon you’ll be enjoying the enchanting beauty of hydrangeas right at your doorstep.