Hello fellow plant lovers! It’s been two decades of getting my hands dirty, and I still get a thrill every time I manage to coax a new life from a beloved plant. Today, we’re diving into the wonderfully woolly world of Phlomis lanata, often called Jerusalem Sage.
This Mediterranean beauty, with its silvery, fuzzy foliage and cheerful yellow flowers, is a real garden performer. It’s drought-tolerant once established and attracts all sorts of beneficial pollinators. I find propagating it so satisfying because it offers a tangible connection to the plants we adore, letting us share them with friends or simply expand our own collections without breaking the bank. For beginners, I’d say Phlomis lanata is moderately easy to propagate. It requires a little attention to detail, but nothing a keen gardener can’t handle.
The Best Time to Start
My personal favorite time to get started with Phlomis lanata is in late spring or early summer. This is when the plant is actively growing, and the new, semi-hardwood stems have the best chance of rooting. You can also try in early autumn, but you’ll want to ensure your cuttings have plenty of time to establish before the real cold sets in.
Supplies You’ll Need
Here’s what I always have on hand:
- Sharp pruning shears or a clean, sharp knife: For making clean cuts.
- Rooting hormone (optional but recommended): A powder or gel that encourages root development.
- Small pots or seed trays: With drainage holes, of course!
- A good quality potting mix: I like a mix that’s well-draining. A blend of potting soil, perlite, and a little coarse sand works wonders.
- Watering can with a fine rose attachment: To avoid disturbing your cuttings.
- Plastic bags or a propagator lid: To create a humid environment.
- Labels: To keep track of what you’ve planted and when!
Propagation Methods
Let’s get our hands dirty with the most reliable methods for this lovely plant.
Stem Cuttings
This is my go-to method for Phlomis lanata.
- Select your cuttings: Look for healthy, non-flowering shoots from the current year’s growth. You want stems that feel firm but still have a little flexibility – not too brittle (old wood) and not too soft (brand new growth). Aim for cuttings that are about 4-6 inches long.
- Make the cut: Using your clean shears or knife, take cuttings just below a leaf node (where a leaf joins the stem). This is where the plant is most likely to produce roots.
- Prepare the cuttings: Gently remove the lower leaves, leaving just a few at the tip. This reduces water loss and prevents leaves from rotting in the soil. If the cutting is particularly long, you can even trim off the very tip of the uppermost leaves.
- Apply rooting hormone (optional): Dip the cut end of the stem into your rooting hormone, tapping off any excess.
- Plant your cuttings: Fill your pots with your prepared potting mix. Moisten the soil gently. Make a hole with a pencil or your finger and insert the cuttings about 1-2 inches deep. Firm the soil gently around each cutting.
- Create humidity: Water the soil lightly. Then, cover the pots with a plastic bag, propping it up with sticks so it doesn’t touch the leaves, or place them in a propagator with a lid. This creates a mini-greenhouse.
Potted Plants (Division – for larger, established plants)
If you have a larger Phlomis lanata that’s getting a bit out of hand, you can also divide it.
- Timing is key: It’s best to do this in early spring just as new growth begins, or in early autumn.
- Prepare the plant: Water the plant thoroughly a day or two beforehand.
- Extract and divide: Carefully dig up the entire plant. Gently tease the root ball apart into smaller sections. You want each section to have a good amount of roots and some healthy top growth. If the root ball is very dense, you might need to use a clean, sharp spade or even a serrated knife to carefully cut through stubborn roots.
- Replant immediately: Replant your divisions into well-draining soil, watering them in well.
The “Secret Sauce” (Pro Tips)
Here are a couple of things I’ve learned over the years that make a difference:
- Don’t let the leaves touch the water: If you’re doing water propagation with Phlomis lanata (which is less common but possible), make sure only the cut stems are submerged. Any leaves in the water will rot and can take the whole cutting down with them. Honestly, I find soil propagation far more successful for this plant.
- Bottom heat is a game-changer: If you have a greenhouse or a warm spot indoors, a heated propagator mat can significantly speed up root development. It provides consistent warmth to the base of the cuttings, mimicking perfect spring conditions.
Aftercare & Troubleshooting
Once your cuttings are potted, place them in a bright, indirect light location. Avoid direct sun, which can scorch the young leaves. Keep the soil consistently moist but not waterlogged. The plastic bag or propagator lid is your friend here, helping to maintain humidity.
You’ll know your cuttings have rooted when you see new growth appearing and they feel firm when you give them a gentle tug. This can take anywhere from 4 to 8 weeks. Patience is vital!
What to watch out for:
- Rotting: If the stems turn black and mushy, or the leaves start to yellow and drop off rapidly, it’s likely due to overwatering or the absence of proper drainage in the pot. Ensure your soil mix is airy and that your pots have drainage holes.
- Wilting: Some initial wilting is normal as the cutting adjusts. However, if they remain limp and don’t perk up, they may not have rooted or the conditions are too dry.
- No growth: If after several weeks there’s no sign of life, don’t despair. Sometimes cuttings just need more time, or the conditions weren’t quite right. Try again with fresh material!
A Encouraging Closing
Propagating plants is a journey of observation and a bit of faith. Don’t be discouraged if your first attempt isn’t a roaring success. Every gardener has experienced cuttings that don’t make it. Just keep trying, learn from each experience, and celebrate every little bit of new life you create. Happy growing!
Resource:
https://identify.plantnet.org/k-world-flora/species/Phlomis%20lanata%20Willd./data