Hello, fellow plant lovers! Today, we’re going to talk about a little gem that brings such cheerful color to any garden: Lonas annua, also known as Yellow Immortelle. Its sunny, daisy-like blooms are simply delightful, and there’s something incredibly satisfying about growing one from scratch. If you’re relatively new to propagating, I think you’ll find Lonas annua to be a very forgiving plant. It’s a joy to share!
The Best Time to Start
For the most successful propagation, I like to start my Lonas annua in late spring or early summer. This is when the plant is actively growing and has plenty of energy to put into developing new roots. You can also take cuttings in early autumn, but you’ll want to get them established before the weather gets too cold. Look for healthy, non-flowering shoots.
Supplies You’ll Need
To get your Lonas annua propagation off to a good start, gather these essentials:
- Sharp pruning shears or a clean knife: For taking those crucial cuttings. Sterilize them with rubbing alcohol between cuts to prevent disease.
- Small pots or seed trays: Clean, with drainage holes, of course.
- Potting mix: A good quality, well-draining potting mix. I often use a blend of coco coir and perlite or sand to ensure excellent drainage.
- Rooting hormone (optional but recommended): This really gives your cuttings a boost. Look for one specifically for stem cuttings.
- Plastic bags or a propagator: To create a humid environment.
- Watering can with a fine rose: For gentle watering.
Propagation Methods
Lonas annua is primarily propagated by stem cuttings. It’s straightforward, and you’ll likely have a high success rate.
Stem Cuttings:
- Take your cuttings: In late spring or early summer, select a healthy stem that isn’t flowering. You want a piece that’s about 3-4 inches long, with several sets of leaves. Make your cut just below a leaf node (where leaves attach to the stem).
- Prepare the cuttings: Gently remove any lower leaves that would be submerged in the soil. You can leave the top two sets of leaves, but if they are very large, you can trim them in half to reduce water loss.
- Apply rooting hormone (optional): Dip the cut end of the stem into your rooting hormone powder or gel. Tap off any excess.
- Pot them up: Fill your small pots or seed trays with your prepared potting mix. Make a small hole in the center with your finger or a pencil.
- Insert the cuttings: Gently place the prepared cutting into the hole, ensuring the leaf nodes you cleared are below the soil line. Firm the soil gently around the stem to provide support.
- Water and cover: Water the potting mix thoroughly but gently. Then, cover the pots with a plastic bag or place them in a propagator. This will create the humid environment cuttings need to root. You can secure the bag with a rubber band.
The “Secret Sauce” (Pro Tips)
Here are a couple of things I’ve learned over the years that really make a difference when propagating Lonas annua:
- Don’t let those lower leaves touch the soil! I’ve seen so many attempts fail because those leaves get damp and then rot. Always make sure they’re tucked up above the soil surface.
- Bottom heat is your friend! While Lonas annua can root without it, placing your pots on a heated propagator mat can seriously speed up the process and improve your success rates. It encourages those roots to form more readily.
Aftercare & Troubleshooting
Once your cuttings are potted, place them in a bright spot out of direct sunlight. Keep the soil consistently moist but not soggy. You can check for roots by giving a very gentle tug after a few weeks. If you feel resistance, they’re likely rooting!
The main issue you might encounter is rot. If a cutting turns mushy or black, it’s usually a sign of too much moisture or poor air circulation. Don’t be discouraged if a few don’t make it – it happens to all of us! Just remove the failed cutting and try again.
Once new growth appears and you can see healthy roots forming, it’s time to gradually acclimate your new plants to normal conditions. Remove the plastic covering for a few hours each day, and then remove it completely. You can then transplant them into slightly larger pots if needed.
Propagating Lonas annua is such a rewarding experience. It’s a fantastic way to fill your garden with that burst of sunshine without buying new plants every year. Be patient, enjoy the process, and soon you’ll have a whole patch of these cheerful blooms to share! Happy gardening!
Resource:
https://identify.plantnet.org/k-world-flora/species/Lonas%20annua%20Vines%20&%20Druce/data