How to grow hydrangea from cuttings

How to grow hydrangea from cuttings

Hydrangeas are among the best-loved flowering shrubs for good reason – their large clusters of flowers decorate the garden all summer long in shades of pink, blue, white or even bright green. Hydrangeas are easy to grow under the right conditions, and there are many different types to choose from. Starting new plants from cuttings is a very easy process, if you want to build your own hydrangea display. Just follow these easy steps to grow hydrangea from cuttings, so you can enjoy more of these bulbous flowers all summer long.

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When to take hydrangea cuttings

First, it is important to take cuttings at the right time. Hydrangeas are very resilient; They can be started from softwood cuttings (fresh new growth) taken in early spring, when the plant is about to leaf out, or semi-hardwood cuttings (partially mature first-year growth that may have developed a semi-woody base) in late summer. Be sure to choose cuttings from stems that have not flowered so there is plenty of energy available to develop a new root system.

Take cuttings early in the morning when the stems are full of water.

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Take hydrangea cuttings

  1. Use clean, sharp shears or shears. Disinfect shears with rubbing alcohol to avoid transmitting diseases. If you move from one plant to another to take cuttings, disinfect the shears each time.
  2. Select healthy stems from the current season that have not flowered and cut a 4- to 6-inch section that has at least two nodes below the top set of leaves. Make sure to make a clean cut; Crushed stems may invite illness.
  3. Using pruners or a sharp knife, remove the lower leaves. Cut it close to the trunk, but without hurting it. Let the upper set of leaves remain. However, if the upper leaves are very large, use a sharp, clean knife to cut them in half to reduce the leaf area so that they do not lose too much moisture while forming roots.
  4. Keep the cuttings moist and out of the sun until you are ready to stick them.

Glued hydrangea cuttings

  1. Prepare your pots by filling them with fresh, well-moistened potting mix or vermiculite. You can use a large pot (8-10 inches) that will hold several cuttings or smaller pots for individual cuttings.
  2. Moisten the bottom end of each cutting slightly and dip the base into the rooting hormone, tapping gently to remove the excess. Although the use of rooting hormones is not strictly necessary, they help promote root growth.
  3. Use a pen or pencil to make a hole in the potting medium and insert a cutting into the hole up to the base of the top set of leaves, then secure the medium around it. Making a puncture first prevents the hormone from being flushed out.
  4. Water well and allow the excess to drain.
  5. Cover the cuttings with a clear plastic dome long enough so that the leaves do not touch them. Or make a tent using plastic wrap or a plastic bag secured to supports (such as short pieces of bamboo or pencils). This acts as a mini greenhouse that helps maintain high humidity around the cutting. Leave the covering in place for 2 to 3 weeks, removing it once the cuttings begin to form roots.

Tips for caring for hydrangea seedlings

  1. Keep your cuttings in an area with bright shade or indirect light indoors. In direct sun, they will get too hot under a canopy or tent.
  2. Water bowls when the surface is dry. Don’t overwater or the cuttings may rot. Make sure your pots have adequate drainage.
  3. Once new top growth begins, and you feel strong resistance from the roots when you gently pull the cutting (usually in about 6 weeks), transplant the cuttings into individual pots or in soil in a sheltered area of ​​the garden to grow. By the following spring, the new hydrangea can be planted in the garden.

Frequently asked questions

  • Where should hydrangea seedlings be planted?

    Most hydrangeas grow best in moist, well-drained soil with partial sun or light shade. And be sure to provide your new plants plenty of space to accommodate their mature size. They won’t be young for long.

  • Can hydrangea seedlings be rooted in water?

    It is possible to root hydrangea cuttings in water, but it is a less reliable method than starting them in potting mix. Also, the roots may grow in water, but the cuttings may not transfer well to soil later.

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