How to Dry Hydrangea Flowers – 3 Foolproof Ways to Keep Blooms Beautiful for Months

Who doesn’t love the big, colorful blooms of hydrangeas? From rounded mopheads and delicate lacecaps to elegant panicles, their varied flower forms make a striking addition to the garden. Knowing how to dry hydrangea flowers allows you to enjoy their impressive blooms for even longer.

Many gardeners leave the flower heads to dry on the bushes for fall and winter interest, but you can also cut and preserve them to display indoors. Knowing when and how to harvest the blooms is a useful part of hydrangea care, as the timing can affect how well they retain their color and shape.

Learning how to dry hydrangea blooms is actually very easy. Some flowers take better to drying than others, and they can last a long time if you do it right. You can use all types of hydrangeas for drying, but the mopheads and panicles with changing colors turn into the most striking specimens when dry.

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There are several ways to dry flowers at home, including air-drying, drying them in water, and using silica gel. Each method is relatively simple and produces slightly different results. Follow the instructions below to discover the best way to preserve your hydrangea blooms.

When to Cut Hydrangeas for Drying

There is a right time and a wrong time to cut hydrangeas for drying. These prolific bloomers look their most spectacular when they are brightly colored at their peak in the garden. But this is not the best time to dry them, as they contain too much moisture. Drying them at this stage will result in wilted, shriveled flowers.

The best time to harvest hydrangeas for drying is later in the season. Aim for about six weeks after the blooms open. The flowers should already feel a little dry and papery. If your flowers don’t seem totally dried out, just give them more time.

Choose a dry day, and harvest flowers later in the day when they are naturally drier.

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How to Dry Hydrangeas in Water

It might seem counterintuitive, but drying hydrangeas in water is the best way to preserve them. Unlike other flowers that degrade in water, hydrangeas hold their shape and color well.

Water-drying hydrangeas takes a little more time than air-drying, but many find that the results are better. Here's how to do it:

1. Timing is critical when drying hydrangeas in water. You must wait till the blooms have been open for several weeks and are beginning to get papery. Many hydrangeas will slowly change colors, from white to dusky pink, for example. It’s when the color change begins that it is ready to undergo the drying process.
2. Cut the blooms in mid to late morning after all the dew has dried from the plant. Pick the best-looking blooms because drying will exacerbate any imperfections. Allow 12 to 18 inches (30–45 cm) for the stems, and cut them at different heights, so the flowers are spaced out as they dry. Cut above a node at a 45-degree angle. Drop the stem in a bucket of water, if desired, while the other boughs are collected.
3. Once inside, strip the leaves from the hydrangea blooms as they don’t dry well. Fill each vase with enough water to cover about two to three inches of the stems. Insert the stems and arrange them so there is ample space between blossoms. They should not touch. Stagger the heights, if needed, to allow sufficient air space.
4. Place the vases where you can enjoy the blooms as they dry, but keep them out of direct sunlight.
5. Allow the water to evaporate and the hydrangeas to dry. It should take two or more weeks. If the water evaporates and the flowers do not feel stiff, add more water and continue to let them dry naturally. When the flowers feel papery and stiff, they are ready for display.

How to Air Dry Hydrangeas

Air-drying hydrangeas is the simplest and quickest method, although the finished blooms may be more fragile and lose more color than those dried in water.

Simply cut the stems to different heights, remove the leaves, and arrange the flowers loosely in a vase without adding water. Avoid crowding the blooms, as good air circulation helps them dry evenly and prevents moisture from becoming trapped between the petals. Place the vase in a cool, dry spot away from direct sunlight, which can bleach the flowers.

Alternatively, tie the stems together in small bunches and hang them upside down to air-dry on a rack, like this wooden adjustable drying rack from Amazon. This can help keep the stems straight, although the flower heads may lose a little more of their natural shape. Depending on the conditions, the hydrangeas should feel dry and papery within one to two weeks.

Using Silica Gel for Drying Hydrangeas​

Silica gel is a good option if you want hydrangea flowers to retain more of their original color and shape. It draws moisture from the petals and supports the flower head as it dries, retaining more color and structure than when air drying. Bear in mind, large hydrangea blooms can use a considerable amount of silica gel, so buy it in bulk, like this Unuast Store 5 lb tub from Amazon.

Here's how to do it:

1. Cut the stems short, remove the leaves, and place a layer of silica gel in the bottom of an airtight container.
2. Set the flower head on top, then carefully pour more silica gel around and over the petals until the bloom is completely covered.
3. Seal the container and leave it undisturbed for several days, checking the flowers according to the product instructions.
4. Once dry, lift the bloom out gently and brush away any remaining crystals with a soft paintbrush.

This method works especially well for individual flower heads intended for arrangements or crafts, although it requires more materials than air- or water-drying. The finished flowers are often very delicate, so handle them with care.

Should I Spray Dry Hydrangea Flowers?

You don’t have to spray hydrangeas after drying them, but doing so will help them last longer. Use a light mist of hairspray to fix the petals and flowers and prevent them from dropping.

Better still, a UV floral preservative, like Krylon UV Floral Protectant Spray, prevents color fading. Your dried blooms won’t last forever, but you can extend their lifespan by doing this.

Can I Dry Hydrangeas in the Microwave?

If you're in a rush, you can dry hydrangeas in the microwave, but it’s not the best method. To do it, place flower heads or individually removed flowers in a microwave-safe container. Heat the container on the lowest setting and check the flowers at 30-second or 60-second intervals.

Ways to Use Dried Hydrangeas

Knowing how to dry a hydrangea flower properly means you can create beautiful displays for fall and winter. A simple and conventional way to use dried hydrangeas is in arrangements in vases, with or without other flowers.

If you use care not to damage them, you can also use dried hydrangeas in other types of displays. Use them in tablescapes or on mantels. Lay them on the surface or around candles. Tie dried flowers to presents. Fill bowls with them to decorate a table.

You can even use hydrangeas in wreaths or garlands. Handle them carefully to avoid damage and to help them last longer.