September 4, 2024 Peter van Dijk

Orchid Propagation

Orchids are beloved houseplants because of their exotic appearance and beautiful flowers. Although many people buy them, few people know that you can also propagate orchids yourself by taking cuttings. Propagation by cuttings can be a rewarding way to expand your orchid collection without having to buy new plants. In this extensive blog, you will learn everything about propagating orchids.

What is Orchid Propagation and Why Would You Do It?

Propagation by cuttings is the process of using a part of an existing plant to grow a new plant. With orchids, this is an exciting way to create new plants yourself. This can be done, for example, via keikis, which appear as baby plants on the mother plant, or by taking a stem cutting. Propagating orchids is not only fun, but also sustainable and economically attractive.

Which Orchid Species Can You Propagate?

Not all orchids are equally easy to propagate. The most suitable species for propagation by cuttings are:

Phalaenopsis (Butterfly Orchid): Easiest to propagate via keikis.
Dendrobium: Can be propagated by separating pseudobulbs.
Cattleya: Propagated by tearing the root ball or splitting pseudobulbs.
Vanda: Can be propagated by using a piece of the stem with aerial roots.

How to Propagate an Orchid via a Keiki?

A keiki is a small plant that grows on the flower stalk or base of the mother plant. The process of propagating a keiki is simple, but requires patience. Follow these steps:

Identify a healthy keiki: Ensure the keiki has at least 2-3 leaves and roots of at least 5 cm.
Use a sterile knife or scissors: Clean the tools with alcohol to prevent infections.
Carefully cut the keiki loose: Cut just below the roots of the keiki. Ensure that you do not damage the mother plant.
Plant the keiki in a pot with orchid potting mix: Use an airy, well-draining soil mix, such as bark or special orchid potting mix.
Place in a light, warm spot: Give small amounts of water regularly and avoid direct sunlight.

How to Propagate an Orchid by Cutting the Stem?

Some orchids can be propagated by cutting the stem. This usually works for orchids with sturdy stems, such as Dendrobium. Here is how to do it:

Cut off a healthy stem: Use a clean, sharp knife.
Divide the stem into pieces of approximately 10 cm: Each piece must contain at least one node (thickening).
Place the stem pieces horizontally on a bed of moist moss: Cover the container with plastic to create a humid microclimate.
Wait for new shoots to emerge: This can take several weeks. Keep the environment moist but not too wet.

Orchid Cuttings in Water

Orchid cuttings in water is a simple and effective method for propagating new orchids. Start by cutting a healthy cutting just below an aerial root. Place the cutting in a clear vase or pot of water, ensuring that the roots are fully submerged but the top part of the cutting does not come into contact with the water. Place the vase in a bright spot, but not in direct sunlight. Change the water regularly to prevent mold formation. After a few weeks, roots will begin to develop, and when they are strong enough, you can repot the cutting into a pot of soil. This method is ideal for propagating orchids without much effort.

When is the Best Time to Take a Cutting from an Orchid?

The best time to take a cutting from an orchid is in the spring or early summer, when the plant is in its growing season. These are the months when orchids have the most energy to develop new roots and leaves, allowing cuttings to take root faster and better.

Why Spring and Early Summer?

Active Growth Period: Orchids begin their active growth during this period, which means they have more energy to repair cuttings and grow new roots.
Warm Temperatures: Spring and summer offer warmer temperatures, which are ideal for the root development of new cuttings. Orchids thrive best at temperatures between 20-25°C.
Sufficient Light: The longer days and stronger light in spring and summer provide the optimal light conditions necessary for growth.

Avoid Taking Cuttings in Winter

In winter, orchids are usually in a dormant period. The lower temperatures and shorter days cause the plant to be less active, which reduces the chance that a cutting will take root successfully. Therefore, it is better to avoid taking cuttings during these months.

What materials do you need for propagating orchids?

To propagate successfully, you need the right materials:

Sterile tools: Knife, scissors, or cutting knife.
Pots or propagation trays: Small pots work best for keikis.
Orchid potting mix or moss: Choose a well-draining one mix.
Gloves: For hygiene and protection.
Disinfectant: Use alcohol to sterilize tools.

How do you care for an Orchid cutting?

Caring for an orchid cutting requires care and attention:

Light: Place the cutting in a bright spot, but protect it from direct sunlight.
Water: Orchids love moist, but not wet roots. Allow the soil to dry between waterings.
Temperature: Keep the cutting in a warm environment (20-25°C).
Nutrition: Use a mild orchid fertilizer once a month to stimulate growth.

How long does it take for a Cutted Orchid to Bloom?

The flowering of an orchid grown from a cutting varies depending on the species and the conditions. Generally, it takes between 1 and 3 years for an orchid grown from a cutting to bloom. It can happen faster with smaller species or if the cutting is already reasonably developed.

What to do if the cutting does not take root or does not grow?

If your orchid cutting does not take root or does not grow, this can have several causes. Here are some common problems and solutions to help your cutting get back on track:

1. Insufficient Light

Orchids need plenty of light, but no direct sunlight.

Solution: Place the cutting in a bright spot with indirect sunlight or use a grow light.

2. Incorrect Watering

Too much or too little water can hinder growth.

Solution: Water moderately and allow the soil to dry out slightly between waterings. Use well-draining pots.

3. Low Humidity
Orchids thrive best in high humidity.

Solution: Increase the humidity by using a humidifier or place the pot on a tray with water and pebbles.

4. Incorrect Temperature
Conditions that are too cold or too warm slow down growth.

Solution: Keep the cutting at a stable temperature between 20-25°C, away from drafts or heat sources.

5. Poor Soil or Substrate

Poor quality substrate can hinder growth.

Solution: Use special orchid soil or bark that drains well and is airy.

6. Pests or Diseases

Insects and fungi can disrupt growth.

Solution: Check regularly for pests and treat with suitable pesticides.

7. Lack of Nutrition

Too little or too much fertilizer can be harmful.

Solution: Use diluted orchid fertilizer once a month during the growing season.

Conclusion

If your cutting does not grow, adjust the conditions and be patient. Orchids often need time to take root, but with the right care, growth usually occurs naturally.

Can You Propagate Every Orchid Via Cuttings?

Not every orchid is suitable for cuttings. Some species require other propagation techniques, such as division or the use of seed. Always find out about the specific type of orchid you want to propagate.

Do You Need to Prune Orchid Cuttings?

Yes, pruning is an important part of successfully propagating orchids, but it is not always necessary depending on the specific situation and the type of cutting you want to make. Pruning helps keep the plant healthy and stimulates the growth of new shoots or keikis. Below you will find some reasons why and how to prune orchids as part of the propagation process.

Why Is Pruning Important When Propagating Orchids?

Removing Dead or Diseased Parts: By pruning damaged, dead, or diseased parts of the plant, you prevent diseases from spreading to the rest of the plant or to the new cuttings. This promotes the overall health of the orchid.

Stimulating Growth: Pruning old flower stalks can encourage the growth of new shoots and keikis. The plant focuses its energy on developing new growth instead of maintaining old or non-viable parts.

Improving Air Circulation: Pruning ensures better air circulation around the roots and leaves of the orchid. This reduces the risk of fungal diseases, which is especially important if you are trying to get a cutting to take root.

Aesthetics and Healthy Growth: By pruning regularly, the orchid not only continues to look more beautiful, but you also stimulate healthier growth. This is especially important for propagation, because a healthy mother plant produces the best cuttings.

How and What to Prune When Taking Orchid Cuttings?

Old Flower Stems: Cut back old, spent stems to just above a node. This can encourage new growth and sometimes even lead to the formation of a keiki.

Dead or Damaged Roots: When repotting or propagating an orchid, prune away dead or rotten roots with sterile scissors. Healthy roots are white or light green and firm; dead roots are brown and limp.

Diseased Leaves: Remove leaves that show signs of disease, such as spots or discoloration. Cut the leaves away carefully so as not to damage the healthy parts of the plant.

Stems Too Long: If the stems become too long or the plant becomes unbalanced, you can prune them lightly to keep the plant more compact. This also makes the plant more stable and reduces the risk of it falling over.

Tips for Pruning Orchids

Use Sterile Tools: Ensure that your pruning shears, knife, or cutting tool are thoroughly clean. Clean the tools with alcohol before use to prevent infections.

Prune with Caution: Orchids are sensitive plants, so always cut carefully and do not make unnecessary wounds.

Protect the Pruned Parts: After pruning, you can disinfect the cuts with cinnamon powder or a special wound treatment product for plants to prevent infections.

Propagating orchids by cuttings can take some practice, but it is a rewarding and fun way to expand your collection. With proper care and patience, you can enjoy new plants that you have grown yourself. Whether you choose keikis or cutting stems, every successful cutting feels like a small victory.