The ‘Susara' Protea, with its stunning salmon-pink blooms and unique, architectural form, is a prized addition to any garden that can support its Mediterranean-loving needs. While seeds can be difficult to obtain and unreliable for replicating specific hybrids, propagating ‘Susara' from cuttings is a far more rewarding endeavor.
Don't let the scientific jargon intimidate you! We've deciphered a detailed study on ‘Susara' propagation to bring you the key takeaways and simplified steps for success.
Understanding the Study:
Researchers wanted to pinpoint the most effective methods for propagating ‘Susara' from cuttings. They experimented with three key variables:
- Cutting Type: Cuttings were taken from various points along the stem, including tip cuttings (terminal), cuttings further down (subterminal and basal), and cuttings encompassing an entire section of new growth.
- Rooting Hormone (IBA): Different concentrations of Indole-3-butyric acid (IBA), a hormone that stimulates root development, were applied to the cut ends of the cuttings.
- Wounding: Some cuttings had small incisions made at the base to assess if this common technique boosted root formation.
What the Study Revealed for Successful ‘Susara' Propagation:
- Tip Cuttings Reign Supreme: The study found that cuttings taken from the tips of the stems (terminal cuttings) rooted exceptionally well, even without the use of rooting hormone. This is excellent news for home gardeners, as it removes the need for additional products and simplifies the process.
- More Options Than You Think: Surprisingly, using the entire section of new growth (including the tip) also proved highly successful. This means you have greater flexibility in choosing cutting material and aren't limited to just the very tip of a stem.
- Hormones Helpful, But Not Always Necessary: While tip cuttings thrived without rooting hormones, cuttings taken further down the stem benefited significantly from IBA application. The study showed optimal results with concentrations of 2000 or 4000 ppm IBA for these types of cuttings.
- Wounding? Not for ‘Susara': In a surprising twist, wounding the ‘Susara' cuttings did not improve rooting and even had a negative impact in some instances. This goes against the grain of common propagation wisdom, where wounding is often recommended.
Putting it All Together: Your Step-by-Step ‘Susara' Propagation Guide:
- Timing is Key: The best time to take cuttings is during the plant's dormant season, ideally in late fall or winter.
- Choose Healthy Stems: Select stems that are free from disease or damage.
- Prepare Your Cuttings:
- For tip cuttings, remove the lower leaves, leaving a few at the top.
- For cuttings further down the stem, prepare in the same way and dip the cut ends in rooting hormone (2000-4000 ppm IBA).
- Pot with Care: Use a well-draining potting mix specifically designed for cuttings or a blend that promotes good drainage.
- Keep it Humid: Cover the pots with clear plastic bags or use a humidity dome to maintain moisture and encourage root development.
- Location, Location, Location: Place your cuttings in a bright location, out of direct sunlight.
- Patience is a Virtue: It may take several weeks, even months, for roots to form and for new growth to appear. Don't give up!
By following these simple steps and applying the research-backed techniques, you'll be well on your way to propagating your own collection of stunning ‘Susara' Proteas. Happy gardening!
