How to Propagate Pulmonaria rubra

Unlocking the Secrets of Propagation: Multiply Your Pulmonaria Rubra (Red Lungwort)

Pulmonaria rubra, more affectionately known as Red Lungwort, is a shade-loving perennial cherished for its vibrant coral-red flowers and remarkably early bloom time. If you’re lucky enough to have this beauty gracing your garden, you might be wondering how to get more of this resilient and eye-catching plant. The good news is that propagating Pulmonaria rubra is surprisingly straightforward, and you don’t need a green thumb to succeed! Let’s explore the two most effective techniques:

1. Division – The Easiest Route to Replication

Division is the most common and arguably the easiest method for propagating your Red Lungwort. This technique involves separating a mature plant into smaller sections, each with its own roots and shoots.

Here’s how it’s done:

• Timing is Key: Early spring, just as new growth emerges, or fall after the flowering period, are the ideal times for division.
• Digging In: Carefully lift the entire plant from the ground using a garden fork, minimizing root disturbance.
• Separation Anxiety? Don’t Be! Gently tease apart the plant’s root mass into smaller sections. Each section should have a healthy clump of roots and at least one growth point (where leaves emerge).
• Replanting: Choose a shady spot with well-drained, humus-rich soil for your new divisions. Plant them at the same depth they were originally growing and water thoroughly.

2. Seed Starting – Embracing the Journey from Seed to Bloom

While slightly more time-consuming than division, starting Pulmonaria rubra from seed offers a rewarding experience and the potential for a larger number of plants.

Here’s the game plan:

• Seed Collection: As the flowers fade, keep an eye out for small, nut-like seeds that form. Collect them once they are dry and brown.
• Cold Stratification (Nature’s Way): Pulmonaria rubra seeds benefit from a period of cold, moist conditions to break dormancy. You can either sow seeds directly in the fall or mimic these conditions by storing them in your refrigerator for 4-6 weeks before starting them indoors.
• Sowing Time: Start seeds indoors 6-8 weeks before the last frost or directly outdoors after the last frost has passed.
• Patience is a Virtue: Keep the soil consistently moist and be patient. Germination can take several weeks.
• Transplanting: Once seedlings have developed several sets of true leaves, they can be transplanted into larger pots or directly into the garden.

Additional Tips for Propagation Success:

• Regardless of the method chosen, ensure the soil remains evenly moist while your new plants establish themselves.
• Mulching around the base of the plants helps to retain moisture and suppress weeds.
• Pulmonaria rubra thrives in partial to full shade conditions. Avoid planting in areas that receive harsh afternoon sun.
• These plants are relatively low-maintenance and rarely encounter pest or disease problems.

By mastering these simple propagation techniques, you can enjoy the beauty of Pulmonaria rubra in all its glory for years to come. From a single plant, you can create a symphony of vibrant color in your shade garden, adding a touch of early spring magic year after year!