Put a brick or stone on the buried area so that it will stay under the soil. This also helps to hold the moisture around the branch. Keep it watered occasionally. When roots form, cut the branch from the mother plant and pot it up or plant it in the garden. Hydrangeas prefer moist partly sunny conditions. They're good on the north and east sides of your home.
If you have other questions about your garden or landscape, feel free to contact a master gardener at the University of Illinois Extension office in Charleston at And be sure to like the Master Gardeners' new Facebook page, at www.
TIPS: Place cuttings in bright light. They will cook in the plastic. And even if they are not in plastic, they should be placed in a bright shady area. Do not water again until top of soil begins to feel slightly dry. Overwatering will cause cuttings to rot. Expect cuttings to begin to form roots in weeks depending on temperature faster in warm weather and humidity.
Some cuttings root in as little as one week. If a tug on the cutting resists the pull, it is rooting. Getting cuttings through the first winter without a greenhouse is the hardest part of starting new hydrangeas from cuttings. Start new cuttings early in the summer to give them the best chance for surviving the winter. While some people manage to take cuttings through the winter indoors, in general, this does not work well. Hydrangeas do best if grown outdoors. Here are two suggestions for getting cuttings through the winter:.
Carl Brady, an Ohio visitor to this site, sent pictures of the easy way he roots hydrangea cuttings. He says, "I have good luck starting cuttings using regular Styrofoam cups for the medium and a larger clear plastic cup for the top.
It works just like a small green house. When cuttings are well rooted, Carl transplants them into a larger container right.
In this instance, the process was obviously very successful. Another visitor to this site reports using a three liter coke bottle: "Cut the top part or funnel plus a couple of inches off a two or three liter bottle of cola. You can then place the bottle funnel part over the pot with the wider opening down. It works like a little greenhouse. It will be lighter in color than older stems. For best results, choose a non-flowering stem with lots of leaves.
You can use multiple stems or use one stem for several cuttings. Cut the stem into 4- to 6-inch lengths with your knife or pruners. Cut each piece right above the node where leaves attach to the stem.
These nodes are where new roots will form. Remove all the leaves except one set at the top of each cutting. Then place the cuttings in shallow, warm water to keep them hydrated as you work.
A rooting hormone stimulates root development on hydrangea cuttings and encourages vigorous, uniform root growth. This improves your success rate and helps ensure you have well-rooted plants when you're through. Pour only what you need; you'll discard the excess when you're finished. Never dip cuttings directly in the product container or you may contaminate it all. Work one cutting at a time. If needed, re-moisten the cutting, then dip the bottom half of the stem in RootBoost TM to cover it thoroughly.
Pay special attention to the rooting nodes. Gently tap the stem to remove excess hormone, and your cutting is ready to go. Use the stick or dibble to make planting holes in your prepared potting mix. Make holes at least 2 to 3 inches deep and big enough to insert a cutting without dislodging the rooting powder. This allows the integrity of the main stem to remain undamaged. Remove half of each of the remaining upper leaves, using pruners or scissors. Dip the cut end of the stem into rooting hormone powder.
This can be viewed as an optional step, but most growers find that success rates are improved by using rooting hormone. Choose a pot that meets your space needs and the number of hydrangea cuttings you are starting. An 8- to inch terra-cotta pot should hold several cuttings.
Add a seed-starting potting mix to your pot, then moisten the mix thoroughly. Other sterile growing media can also work, such as vermiculite or coarse sand. Embed each cutting into the growing mix all the way up to the base of the remaining leaves. Pack the mix down around stems and moisten thoroughly. Place the potted cuttings in a loosely secured clear plastic bag and set it in a location that gets bright indirect light, but not direct sunlight, which can bake the cuttings and cause them to rot.
Monitor the potting mix and add moisture when it begins to dry out to the touch. The growing mix should be consistently moist, but not soggy. Within a month, your hydrangea cuttings will form new roots. Once they do and new green growth begins, you can carefully transplant individual cuttings into their own pots filled with ordinary potting mix to continue growing into larger plants. Or, well-developed cuttings can be transplanted directly into the garden at this time.
You can now begin treating the new specimens as mature plants, watering them weekly.
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