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[[File:RoseCutting.jpeg\|alt=A successful rose cutting which has started to produce new growth.\|thumb\|A successful rose cutting which has started to produce new growth.]]
[[File:Weepingwillowcuttingsinwater.jpg\|alt=A bunch of weeping willow cuttings which are starting to grow roots.\|thumb\|A bunch of weeping willow cuttings which are starting to grow roots.]]
Tree propagation is the process of creating new trees from existing ones. Whether for conservation, landscaping, or horticultural purposes, propagating trees is a rewarding endeavour that allows you to replicate desirable tree species. This comprehensive guide outlines various methods used to propagate trees successfully.
	'''How to propagate trees''' is a practical guide to producing young trees from seed, cuttings, grafts, or layers. The best method depends on the tree species and the reason for propagation. A gardener trying to copy a favourite fruit cultivar will usually need a vegetative method. A restoration project may prefer seed from known local sources.

== Methods of Tree Propagation ==
	Before starting, identify the tree as accurately as possible. Propagation advice for one species may fail on another, even where the trees look similar.

=== 1. Propagation by Seeds ===
The propagation of trees from seeds is a common and natural method:
	== Planning ==
	Start by deciding what you need the new tree to be. If genetic variation is acceptable or wanted, use seed. If the new plant must match the parent, use a vegetative method such as cuttings, grafting, budding, or layering.

# Seed Collection: Collect mature seeds from healthy parent trees during the appropriate season. Different tree species have varying seed maturity times.
# Seed Preparation: Clean the seeds and remove any debris or pulp. Some seeds may require scarification (scratching the seed coat) to promote germination.
# Seed Treatment: Some seeds benefit from stratification, a process involving exposing seeds to cold temperatures to break dormancy. Research the specific requirements for your tree species.
# Sowing: Plant the prepared seeds in a well-draining growing medium at the recommended depth. Keep the medium consistently moist.
# Germination: Provide the seeds with appropriate temperature and lighting conditions for germination. Be patient, as germination times vary.
	Also check whether the plant is protected by plant breeders' rights, patents, conservation rules, or collection restrictions. Some cultivated plants cannot legally be propagated for sale without permission, and wild seed or cuttings may need landowner consent.

=== 2. Propagation by Cuttings ===
This method involves creating new trees from cuttings of existing ones:
	Useful preparation includes:

# Cutting Selection: Choose healthy, disease-free branches for cuttings. Softwood cuttings are taken from new growth, while hardwood cuttings come from mature growth.
# Cutting Preparation: Cuttings should typically be around 4-8 inches long. Remove any leaves from the lower portion of the cutting.
# Rooting Medium: Plant the cuttings in a suitable rooting medium, such as a mix of peat and perlite or a rooting hormone-enriched mixture.
# Rooting Environment: Maintain high humidity and consistent moisture around the cuttings. Use a clear plastic dome or a misting system.
# Transplanting: Once roots have developed, transplant the rooted cuttings into larger pots or directly into the ground.
	* Choosing a healthy parent tree.
	* Labelling the species, cultivar if known, source, and date.
	* Cleaning secateurs, knives, pots, and trays.
	* Preparing a free-draining propagation mix.
	* Keeping material cool and moist until it is used.
	* Planning where young plants will be hardened off and grown on.

=== 3. Propagation by Grafting ===
Grafting allows you to combine desirable characteristics of different trees:
	== Growing From Seed ==
	Seed propagation is suitable where variation is acceptable and the species produces viable seed. Collect ripe seed from a healthy tree. Remove flesh, husks, or debris where needed, and discard damaged or mouldy seed.

# Scion and Rootstock Selection: Choose a healthy scion (top portion) with desired traits and a compatible rootstock (bottom portion) that matches the scion.
# Preparation: Make clean, precise cuts on both the scion and rootstock. Match the cambium layers for successful grafting.
# Grafting Techniques: Popular grafting techniques include whip-and-tongue, cleft, and side-veneer grafting. Secure the graft with appropriate binding materials.
# Protection: Cover the grafted area with grafting wax or a similar substance to prevent drying out and infections.
# Healing and Growth: Allow the graft to heal and the new tree to establish itself. Monitor closely during the initial stages.
	Some tree seed can be sown soon after collection. Other seed has dormancy that must be broken. Common treatments include soaking, scarification, and cold, moist stratification. Stratification is often used for woody plants whose seed normally passes through winter before germinating.

=== 4. Water Propagation ===
Certain trees, such as Weeping Willow, can easily be propagated in water:
	General steps are:

# Cutting Preparation: Take a healthy cutting from a Weeping Willow tree, ensuring it has several leaf nodes.
# Water Container: Place the cutting in a container with water, submerging at least one or two leaf nodes.
# Sealed Environment: Seal the container with a transparent plastic bag or dome to retain moisture and create a humid environment.
# Root Development: After a few weeks, the cutting will develop roots. Transplant it into a wet, well-draining soil mixture.
	* Collect mature seed at the right time.
	* Clean and label the seed.
	* Check whether the species needs stratification or scarification.
	* Sow in a clean, free-draining medium at an appropriate depth.
	* Keep the medium moist but not waterlogged.
	* Protect the seed from rodents, birds, drying, and fungal disease.
	* Move seedlings into individual pots once they are large enough to handle.

== Care and Maintenance ==
Successful tree propagation requires ongoing care:
	Seedlings should be grown on carefully before planting out. Young trees are vulnerable to drought, wind, weeds, grazing, and poor root development.

* Watering: Keep the soil consistently moist but not waterlogged to support root development.
* Protection: Shield young plants from harsh weather, pests, and diseases.
* Transplanting: Gradually acclimate propagated trees to their new environment before transplanting them permanently.
	== Propagating From Cuttings ==
	Cuttings are used to clone a parent tree. They work well for some species and poorly for others. Willow is often easy, while many mature trees are difficult without controlled conditions.

== Conclusion ==
Propagating trees offers an opportunity to create new trees with desirable traits while contributing to conservation efforts and landscaping projects. By understanding and implementing methods such as seed propagation, cuttings, grafting, and water propagation, individuals can embark on a rewarding journey to replicate and preserve various tree species.
	Softwood cuttings are taken from soft young growth, usually in spring or early summer. Hardwood cuttings are taken from mature dormant stems, usually in autumn or winter. Semi-ripe cuttings sit between those stages.

	A typical cutting method is:

	* Take material from healthy, non-flowering growth where possible.
	* Cut just below a node with clean secateurs or a sharp knife.
	* Remove lower leaves that would sit in the rooting medium.
	* Insert the cutting into a free-draining medium.
	* Keep it humid, bright, and out of harsh direct sun.
	* Avoid waterlogging, stagnant air, and overheating.
	* Pot on after roots have formed and the cutting has begun active growth.

	Purdue Extension notes that putting woody cuttings directly into water is not usually recommended because the resulting roots can be weak and poorly adapted to soil. A moist, airy rooting medium is normally better.

	== Grafting and Budding ==
	Grafting is used when a tree must be kept true to type or when a chosen rootstock is needed. Fruit trees are commonly grafted because seed-grown offspring do not reliably match the parent cultivar.

	Basic grafting principles are:

	* Use a compatible rootstock and scion.
	* Work with clean, sharp tools.
	* Match the cambium layers closely.
	* Bind the graft firmly so the pieces do not move.
	* Protect the union from drying out.
	* Remove competing shoots from the rootstock as the graft grows.

	Common grafting methods include whip-and-tongue grafting, cleft grafting, side grafting, and bark grafting. Budding is similar but uses a single bud. These methods take practice and are easiest to learn on spare material before valuable stock is used.

	== Layering ==
	Layering is useful where cuttings are unreliable or where only a small number of plants is needed. The shoot forms roots while still attached to the parent plant.

	For simple layering:

	* Choose a flexible low shoot.
	* Lightly wound the underside where it will touch the soil.
	* Peg that section down into prepared soil.
	* Keep the area moist.
	* Wait until roots have formed before cutting it from the parent.

	For air layering, a stem is wounded above ground, wrapped with damp moss or another suitable medium, and enclosed to keep it moist. Once roots have formed, the rooted section is cut off and potted.

	== Aftercare ==
	Newly propagated trees need careful aftercare. Keep them labelled, watered, and protected. Do not rush them into exposed ground before they have a strong root system.

	Good aftercare includes:

	* Gradual hardening off before outdoor planting.
	* Protection from frost, heat, wind, and strong sun.
	* Checking for aphids, fungus gnats, damping off, and mould.
	* Potting on before roots become badly congested.
	* Planting at the correct depth.
	* Watering during dry weather after planting.
	* Keeping weeds and grass away from the base.

	Many failures happen after rooting or germination, when a young plant is moved too quickly into poor conditions.

	== Choosing a Method ==
	Use seed when diversity, quantity, or conservation value matters. Use cuttings where the species roots reliably and a clone is wanted. Use grafting or budding for fruit cultivars, ornamental cultivars, or rootstock control. Use layering for plants that root slowly but can remain attached to the parent while roots form.

	The best guide is always species-specific information. Tree propagation is practical work, and small differences in timing, temperature, moisture, and plant age can decide whether it succeeds.

	== See Also ==
	* [[Propagation_of_Trees]]
	* [[Tree]]
	* [[Horticulture]]
	* [[Forestry]]

	== References ==
	* [https://www.rhs.org.uk/propagation/techniques Royal Horticultural Society: Propagation techniques]
	* [https://www.rhs.org.uk/propagation/softwood-cuttings Royal Horticultural Society: Softwood cuttings]
	* [https://www.rhs.org.uk/propagation/hardwood-cuttings Royal Horticultural Society: Hardwood cuttings]
	* [https://www.rhs.org.uk/propagation/layering Royal Horticultural Society: Layering]
	* [https://www.rhs.org.uk/propagation/air-layering-plants Royal Horticultural Society: Air layering]
	* [https://extension.missouri.edu/publications/mg3 University of Missouri Extension: Plant propagation]
	* [https://www.purdue.edu/hla/sites/yardandgarden/propagate-trees-and-shrubs-from-cuttings/ Purdue Extension: Propagate trees and shrubs from cuttings]

	[[Category:Horticulture]]
	[[Category:Trees]]
	[[Category:Guides]]