Can You Divide Hydrangeas? A Guide for Gardening
Can You Divide Hydrangeas?
Yes, hydrangeas can be divided.
Shoots that are emerging from the perimeter of the plant can be separated with a spade, as they usually have their own root system underground.
Alternatively, the entire hydrangea plant can be dug up and split into two or more pieces, looking for natural separations in the root ball.
The best time to divide bigleaf hydrangeas is early spring when new green buds are starting to swell.
Divisions should be kept consistently damp and treated like new plants due to their compromised roots.
Key Points:
- Hydrangeas can be divided by separating shoots emerging from the perimeter with a spade
- The entire plant can also be dug up and split into two or more pieces, looking for natural separations in the root ball
- Early spring is the best time to divide bigleaf hydrangeas when new green buds are starting to swell
- Divisions should be kept consistently damp
- Divided hydrangeas should be treated like new plants due to their compromised roots.
Did You Know?
1. Although most commonly known for their striking blue and purple blooms, hydrangeas can actually change color depending on the soil pH. Acidic soil tends to produce blue flowers, while alkaline soil creates pink or purple blooms.
2. Did you know that hydrangeas get their name from the Greek words “hydor” (water) and “angeion” (vessel)? This is due to the cup-shaped flowers resembling water-filled vessels.
3. In Japan, hydrangeas are associated with heartfelt emotions and gratitude, making them a popular flower choice for weddings and other special occasions. They are often given as gifts to express understanding and thankfulness.
4. Hydrangeas have been used medicinally in traditional Chinese medicine to help alleviate urinary tract infections and bladder problems. The plant’s leaves and roots are often used to make herbal teas or extracts.
5. While most hydrangeas grow best in moist soil, there is a French variety called the ‘Dyerville Giant’ that thrives in areas prone to dry spells. This particular hydrangea has developed long tap roots to access water deeper in the ground, making it more tolerant of drier conditions.
Dividing Hydrangeas: A Step-By-Step Guide
Hydrangeas are stunning flowering plants that can bring beauty to any garden. While they may look like they belong to the perennial flower category, they can actually be divided, just like other perennial plants.
- Dividing hydrangeas can be done in two ways:
- Separating shoots that have their own root system
- Splitting the entire plant into two or more pieces.
If you notice shoots emerging from the perimeter of the hydrangea plant, these shoots usually have their own root system underground. To separate them, you will need a spade or shovel. Gently dig around the shoot and lift it from the ground, making sure to retain as many roots as possible. This method allows you to propagate the plant and create more hydrangeas for your garden.
Alternatively, you can dig up the entire hydrangea plant and then divide it into two or more pieces. Look for natural separations or breaks in the root ball when dividing. This method is best done in early spring when new green buds are starting to swell, as the plant is entering an active growth phase.
It is important to note that the divisions should be kept consistently damp and treated like new plants. Their roots may be compromised during the division process, so it is vital to provide them with extra care to ensure their successful growth.
Additional Tips:
- Dividing hydrangeas increases the chances of successful rooting and transplanting.
- Ensure the divided sections have enough space to grow and develop.
- Regular watering and fertilizer application will support the healthy growth of the divided hydrangea sections.
Best Time To Divide Hydrangeas: Early Spring Or Fall?
When it comes to dividing hydrangeas, timing is crucial for their overall health and successful growth. The best times to divide different varieties of hydrangeas may vary slightly, but generally, early spring or fall is recommended.
For bigleaf hydrangeas, the best time to divide them is in early spring, right when new green buds are starting to swell. This timing allows the plant to take advantage of its active growth phase for a better chance at successful division.
On the other hand, dividing hydrangeas in the fall is also a viable option, especially when the leaves have fallen, or at the beginning of spring before new growth appears. This timing ensures that the division process doesn’t interfere with the plants’ natural growth cycles.
Whether you choose early spring or fall, it is essential to water the hydrangeas thoroughly before dividing. However, it is crucial to avoid soaking them, as this may lead to root rot or other issues. By providing the appropriate timing and care during division, you can increase the beauty and abundance of hydrangeas in your garden.
- Divide hydrangeas in early spring or fall
- For bigleaf hydrangeas, divide them when new green buds are starting to swell
- In fall, divide when the leaves have fallen or at the beginning of spring
- Water the hydrangeas thoroughly before dividing, without soaking them
Tools And Techniques For Dividing Hydrangeas
Dividing Hydrangeas
Dividing hydrangeas is a relatively straightforward process that requires a few essential tools and techniques. By following these steps, you can successfully divide the plant and propagate it for a more vibrant garden.
To divide hydrangeas, you will need the following tools:
- A shovel or spade
- A pitchfork
- A pick or axe (for older plants)
- Rope or twine
- Garden clippers or shears
- Topsoil
- Mulch
Begin by watering the hydrangeas thoroughly, but avoid soaking them. This hydration will make it easier to divide and transport the plants. Tie the limbs together using rope or twine to make it more manageable to transport and expose the stem for easier digging.
Next, dig up the root ball by creating a perimeter around the hydrangea, approximately two feet from the main stem. Make deep cuts with a shovel, loosening the roots but being careful not to sever them completely. Once the root ball is free, remove it from the ground.
For larger or older hydrangea plants, heavier tools like a pick or axe may be necessary to remove the root ball. Dividing the root ball is recommended for healthier hydrangeas, and using a shovel and pitchfork will help divide it into multiple sections.
It is typically advised to divide hydrangeas into two or four sections for optimal growth. Once the divisions are made, they can be planted in their new locations.
Planting And Caring For Divided Hydrangeas
After dividing hydrangeas, it is crucial to plant and care for them properly to ensure their successful growth. Follow these steps to provide the best possible environment for your newly divided hydrangeas.
- Choose an overcast day to plant the hydrangeas to avoid scorching the plants.
- They prefer damp, well-drained, and rich soil.
- Find a location that receives morning sun and afternoon shade.
- For areas with deep shade, native smooth hydrangeas are a suitable choice.
Prepare the hole for planting by partially filling it with water and loosening the soil around the roots. This process will help the plant establish itself in its new environment. Add topsoil, manure, or compost to provide necessary nutrients for the hydrangeas’ growth.
The hole’s depth should match the original hole from which the hydrangea was dug, ensuring that the plant is not planted too deeply or too shallowly. Once planted, add mulch around the plant to help retain moisture in the soil. Water the hydrangeas deeply over the next few hours to settle the soil and provide sufficient hydration.
Keep in mind that recently transplanted or divided hydrangeas require additional water throughout the summer until their roots establish in their new location. Regular watering and monitoring for any signs of stress or dehydration will ensure the health and vitality of your divided hydrangeas.
- Choose an overcast day to plant the hydrangeas
- Prefer damp, well-drained, and rich soil
- Find a location with morning sun and afternoon shade
- Native smooth hydrangeas are suitable for deep shade
Tips For Successful Division Of Hydrangeas
To ensure a successful division process and the subsequent growth of your divided hydrangeas, consider the following tips:
- Choose the appropriate time to divide your hydrangeas, either in early spring when new buds are starting to swell or during the fall when the leaves have fallen.
- Water hydrangeas thoroughly before dividing to make the process easier and less stressful for the plant.
- Tie the limbs of the hydrangeas with rope or twine for easier transport and to expose the stem for digging.
- Use the necessary tools, such as a shovel, pitchfork, or pick, depending on the age and size of the hydrangea plant.
- Divide the root ball into two or four sections for optimal growth and health of the hydrangeas.
- Plant the divided hydrangeas in damp, well-drained, and rich soil in a location that receives morning sun and afternoon shade.
- Ensure the newly planted hydrangeas are watered deeply and regularly, especially during the establishment phase.
- Use mulch to retain moisture in the soil and provide insulation for the roots.
- Monitor the plants for any signs of stress or dehydration and provide additional care if needed.
By following these tips, you can successfully divide hydrangeas and enjoy their beauty in your garden for years to come.
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Frequently Asked Questions
Can you grow a hydrangea from a cutting?
Yes, it is possible to grow a hydrangea from a cutting. While hardwood cuttings can be challenging, it is more common for professional hydrangea growers to use softwood cuttings as they root quickly and have higher success rates. By taking softwood cuttings during late spring or early summer when the stems are young and flexible, you can increase your chances of successfully growing a new hydrangea plant. With proper care and attention, these softwood cuttings have the potential to root and flourish into beautiful hydrangea plants.
How do you multiply hydrangeas?
One way to multiply hydrangeas is by taking a small branch and using pruning shears or a garden knife to cut it. Another method involves bending a stem of an existing hydrangea plant to lay on the ground, allowing it to develop roots from one of the leaf nodes. Both techniques provide opportunities for new hydrangea plants to grow and flourish.
Do hydrangea cuttings root in water?
Hydrangea cuttings do not root in water due to their woody nature. Instead, they require a different approach for successful propagation. Using secateurs, carefully collect material from hydrangea stems and trim each cutting with a knife. Rather than water, it is necessary to insert these cuttings into a pot containing gritty compost in order to encourage rooting.
How do you keep hydrangea cuttings alive?
To maintain the vitality of hydrangea cuttings, it is crucial to choose open and vibrant flowers. Opt for mature blossoms that have a slightly papery texture, as they tend to last longer. After cutting the stems at an angle, promptly place them in a bucket of water. If arranging the cuttings is not feasible at that moment, store them in a cool and dark area like a garage for a maximum of two days.