Let’s Propagate: A plant propagation manual for Australia

Bishop, A, 2025, Propagating Native Plants, https://www.gardeningaustraliamag.com.au/propagating-native-plants/#:~:text=Native%20cuttings%20can%20take%20anywhere,to%20pot%20up%20the%20seedlings.

Book

Stewart, A 2012, Let’s Propagate! A plant propagation manual for Australia, Allen and Unwin, Sydney.

This is a handbook for propagating plants and importantly it covers Australian Native plant propagation. It takes the user from a novice to being able to identify what propagation methods can be applied for a large cross-section of plant families, genus, and species.

…The book is a marvellous gardening companion for suburban gardeners who crave a creative element amidst the weeding, mowing and pruning; gardeners who are frustrated after trying to adapt imported and inappropriate information to local conditions; gardeners in search of Australian varietals; recreational gardeners and professional propagators alike who wish to be abreast of new techniques and research to stimulate germination in many difficult-to-propagate Australian plants; those who wish to expand the range of plants currently available to them; and anyone who wishes to experience the joy of fostering and nurturing new life.
Gardening media personality and avid propagator, Angus Stewart, takes us from the first principles to the latest sophisticated techniques. His infectious passion for his subject will make you yearn to get out there to create landscapes and gardens, grow trees, or perhaps help revive endangered species. (Vital Source | Let’s Propagate)

Listing of chapters and sections

Introduction
Chapter 1: The basics of plant propagation  p. 1
Chapter 2: Sex cells!,  p. 6

Chapter 3: Propagation in the home garden  p. 12
  • Seed propagation p. 12
  • Self-sown seeds p. 13
  • Direct sowing of seeds p. 13
  • Growing seeds in pots p. 13
  • Collecting seeds p. 14
  • Getting started with seed collection – collecting common Australian native plant seeds p. 15
  • Propagation by cuttings p. 16
  • A step-by-step guide to preparing cuttings p. 17
  • Soft-wood cuttings p. 17
  • Woody cuttings p. 18
  • How do I look after my cuttings? p. 19
  • How will I know when the cuttings are ready? p. 19
  • Long-stem cuttings p. 21
  • Growing cuttings in water p. 22
  • Getting started with cuttings p. 23
  • Softwood cuttings p. 23
  • Semi-hardwood cuttings p. 24
  • Hardwood cuttings p. 24
  • Propagation by division p. 24
  • Division made simple p. 25
  • How do I look after the new divisions? p. 25
  • Propagation by layering p. 26
  • What is layering? p. 26
  • What plants can be propagated by layering? p. 27
  • When is the best time of year to start layering? p. 27
  • Aerial layering p. 27
  • Simple layering p. 28
  • After-care for layered plants p. 29
  • Getting started with layering p. 29
Chapter 4: Propagation by seed  p. 30
  • Self seeding p. 30
  • Optimising seed propagation p. 31
  • Seed propagation made simple p. 31
  • Growing medium p. 31
  • Container p. 32
  • Method p. 33
  • Propagation environment p. 33
  • Time of year p. 33
  • Things to look for in the propagation stock p. 34
  • Theory of seed propagation p. 34
  • Seed collection p. 37
  • Open pollination p. 39
  • Self-pollination p. 40
  • Cross-pollination p. 41
  • The practicalities of collecting seed p. 42
  • Fruit types p. 43
  • Seed cleaning p. 49
  • Seed storage p. 50
  • Seed testing p. 51
  • Commercial seedling production p. 54
  • Seed dormancy p. 56
  • Light induced dormancy p. 56
  • Hard seed-coat dormancy p. 57
  • Smoke-enhanced germination p. 57
  • Dormancy created by chemical inhibitors p. 58
  • Temperature-related dormancy p. 58
  • Chemical treatments used to break dormancy p. 59
  • Handling of seedlings after germination p. 60
Chapter 5: Stem cuttings  p. 63
  • Getting started with stem cuttings p. 65
  • Theory of stem cuttings p. 68
  • Softwood cuttings p. 70
  • Semi-hardwood cuttings p. 71
  • Hardwood cuttings p. 72
  • Storage of stem cuttings p. 73
  • Difficult to root cuttings: tricks of the trade p. 74
  • Root-promoting compounds and techniques p. 74
  • Why do etiolation and banding treatments work? p. 78
  • Should fertilisers be added to media for cutting production? p. 79
  • Summary of adventitious root formation in cuttings p. 80
Chapter 6: Leaf cuttings  p. 82
  • Theory of leaf cuttings p. 84
  • Leaf and petiole method p. 86
  • Leaf section method p. 87
  • Severed vein method p. 87
  • General hints on leaf cutting p. 88
Chapter 7: Root cuttings  p. 89

Theory of root cuttings p. 91

Chapter 8: Layering  p. 93
  • Preamble discusses simple and aerial layering pp. 93-98
  • Additional methods of layering p. 98
  • Tip layering p. 98
  • Serpentine (compound) layering p. 98
  • Mount (stool) layering p. 99
  • Trench layering p. 100
  • Theory of layering p. 100
Chapter 9: Division and separation  p. 103
  • Division p. 105
  • Separation p. 108
  • Bulb types p. 110
  • Bulb cottage and twin scaling p. 111
  • Theory of division and separation p. 112
Chapter 10: Budding and grafting p. 114
  • Grafts p. 115
  • Cutting grafts p. 116
  • Budding p. 117
  • Theory of budding and grafting p. 118
  • Formation of the graft union p. 121
  • Further notes on grafting and budding techniques p. 122
  • Grafting p. 123
  • Tools and accessories p. 125
  • Rootstocks p. 125
  • Rootstock suckering p. 126
  • Scionwood p. 126
  • Compatibility of rootstock and scion p. 127
  • Graft incompatibility p. 128
Chapter 11: Plant tissue culture or micropropagation  p. 130
  • Commercial micropropagation p. 135
  • Plant tissue culture as a research tool p. 140
  • Embryo and ovule culture p. 140
  • Anther culture p. 141
  • Protoplast culture p. 141
  • Callus culture p. 142
  • Cryogenic culture p. 142
  • Stages of Micropropagation p. 143
  • Micropropagation at home p. 152
Chapter 12: Stock plant management p. 153
  • Nutrition p. 154
  • Management of pests and diseases p. 154
  • Genetic stability p. 157
  • Juvenility p. 159
  • Flowering status p. 161
  • Seed orchards p. 162
  • Eucalyptus seed orchards p. 164
Chapter 13: Environmental control p. 166
  • Structures for plant propagation p. 167
  • Glasshouses and greenhouses p. 167
  • Cold frames p. 167
  • Shadehouses p. 168
  • Methods of environmental control p. 169
  • Humidity p. 169
  • Temperature p. 172
  • Light p. 174
  • Carbon dioxide p. 175
  • Environmental control in the home garden p. 175
  • Create your own greenhouse p. 175
  • Propagation structures for the home garden p. 176
  • Summary of environmental control p. 177
Chapter 14: Other issues in plant propagation  p. 178
  • Pests and diseases – Fungi p. 179
  • Damping off, seed rot and root rot p. 179
  • Grey mould (Botrytis cinerea)
  • Vascular wilt (Fusarium oxysporum) p. 181
  • Other pests and diseases p. 181
  • Viruses p. 181
  • Sciarid flies (fungus gnats) p. 182
  • Sap-sucking pests p. 183
  • Weeds p. 183
  • Hygiene and sanitation p. 183
  • Methods of hygiene and sanitation p. 184
  • Integrated pest and disease management in the propagation house p. 185
  • Media and hormones p. 185
  • Media for plant propagation p. 185
  • Methods of propagation p. 190
  • The role of plant growth regulators and plant hormones in plant propagation p. 191
  • Auxins for root initiation p. 191
  • Gibberellins or gibberellin acids p. 193
  • Cytokinins p. 193
Appendix 1 Smoke and seed germination p. 194
  • Theory of smoke-induced germination p. 196
  • Summary of smoke-induced germination p. 200
  • What sort of smoke is required? p. 200
  • How should the smoke be applied? p. 200
  • Can smoke treatment be applied in the field without burning the area? p. 201
  • Can smoke-treated seed be stored and successfully sown later? p. 201
  • Are there other factors which interact with smoke chemicals such as hormones, temperature, moisture, nicking of seeds? P. 202
  • What is the importance of this discovery on horticulture? p. 202
  • I have tried smoke treatments by have had limited success. Are there any factors which may cause problems with propagators? p. 203
  • Species, arranged by family, in which treatment with smoke or aqueous smoke extract has been shown to give improved germination (Courtesy D. Oriel Seed Exporters) p. 203
  • Appendix 2 Propagation of commonly encountered plants p. 206.
  • Propagation methods for Australian native plants p. 206
  • Propagation methods for exotic species p. 242

Appendix 2 Propagation of commonly encountered plants p. 206
Appendix 3 Suppliers of propagation accessories p. 26
Further reading p. 272
Index p. 275

About the author

Angus Stewart has a long career as an Australian Native plant horticulturalist. His experience includes being a TAFE instructor, radio and TV broadcaster and author of many popular Native gardening books. Of note, from 2004 to 2017, Angus was a television presenter on Gardening Australia representing NSW. For more career information, see Gardening with Angus | About Angus.

https://gardeningwithangus.com.au/newsletter-62-august-2020-more-trees-and-kangaroo-paws-please/

Media and online content

Gardening with Angus

https://gardeningwithangus.com.au

Angus Stewart hosts his own website, Gardening with Angus. It provides information about native Australian plants. It has a plant database with a search facility, articles about plants, lists of nurseries, as well as online shopping.

Angus Stewart YouTube channel

https://www.youtube.com/user/AngusStewartGardenTV

There are over 50 videos with playlists covering plant propagation, composting, Australian plants, and edible gardening

Where to find

Let’s Propagate! is available through a Library SA interlibrary loan. See more information about the book.

Where to buy

You can buy Let’s Propagate! From good bookstores including Dymocks, online through the Gardening With Angus website as well as other notable online booksellers.

See also
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