What To Know
- Whether you’re a seasoned gardener or a novice, this comprehensive guide will provide you with all the essential knowledge and techniques to successfully propagate erysimum.
- Sow seeds in a seed tray filled with a well-draining seed starting mix.
- Create a humid environment by covering the pot with a plastic bag or placing it in a propagator.
Propagating erysimum, commonly known as wallflowers, is a rewarding endeavor that can enhance your garden’s beauty and extend the enjoyment of these charming plants. Whether you’re a seasoned gardener or a novice, this comprehensive guide will provide you with all the essential knowledge and techniques to successfully propagate erysimum.
Methods of Erysimum Propagation
There are two primary methods for propagating erysimum:
- Seed Propagation: This method involves sowing seeds directly into the soil or starting them indoors in seed trays.
- Vegetative Propagation: This method involves taking cuttings from existing erysimum plants and rooting them to create new plants.
Seed Propagation
Step 1: Seed Collection
Harvest seeds from mature erysimum plants after the flowers have faded and the seed pods have dried. Allow the pods to open naturally and collect the tiny, brown seeds.
Step 2: Sowing Seeds
- Direct Sowing: Sow seeds directly into prepared soil in the garden in late summer or early fall. Cover the seeds lightly with soil and keep them moist.
- Indoor Sowing: Start seeds indoors 6-8 weeks before the last frost. Sow seeds in a seed tray filled with a well-draining seed starting mix. Keep the soil moist and provide adequate light.
Step 3: Seedling Care
- Thinning: Once seedlings emerge, thin them out to the strongest and healthiest ones.
- Transplanting: When seedlings have developed several sets of true leaves, transplant them into individual pots or into the garden.
Vegetative Propagation
Step 1: Cutting Selection
Select healthy, non-flowering stems from mature erysimum plants. Cuttings should be 4-6 inches long and have several nodes.
Step 2: Rooting Hormone (Optional)
Dip the cut end of the cutting into rooting hormone to promote root development. This step is optional but can increase the success rate.
Step 3: Rooting Medium
- Soil: Plant cuttings in a pot filled with a well-draining potting mix.
- Water: Keep the soil moist but not soggy.
- Humidity: Create a humid environment by covering the pot with a plastic bag or placing it in a propagator.
Step 4: Rooting Process
- Time: Root development can take several weeks.
- Check Roots: Gently tug on the cutting to check if roots have formed.
Growing and Care for Propagated Erysimum
- Planting: Plant newly propagated erysimum plants into the garden in well-drained soil with full sun or partial shade.
- Watering: Water plants regularly, especially during hot and dry weather.
- Fertilizing: Fertilize plants monthly with a balanced fertilizer.
- Deadheading: Remove spent flowers to encourage new growth and flowering.
Tips for Successful Propagation
- Use fresh, viable seeds for best results.
- Keep seeds moist and warm during germination.
- Provide adequate light for seedlings.
- Avoid overwatering cuttings to prevent rot.
- Be patient and allow ample time for root development.
Varieties of Erysimum
There are numerous varieties of erysimum available, each with its unique characteristics:
- Erysimum cheiri: Common wallflower with fragrant flowers in various colors.
- Erysimum linifolium: Narrow-leaved wallflower with bright yellow flowers.
- Erysimum perenne: Perennial wallflower with orange or purplish flowers.
- Erysimum arkansanum: Arkansas wallflower with purple or pink flowers.
The Bottom Line: Unlocking the Beauty of Erysimum
By following the techniques outlined in this guide, you can successfully propagate erysimum and enjoy the vibrant colors and sweet fragrance of these beloved plants. Whether you choose seed propagation or vegetative propagation, remember to be patient, provide optimal growing conditions, and revel in the beauty of erysimum throughout your garden.
Questions You May Have
1. When is the best time to propagate erysimum?
- Seeds: Sow seeds in late summer or early fall for direct sowing, or 6-8 weeks before the last frost for indoor sowing.
- Cuttings: Take cuttings in spring or summer.
2. How do I know when cuttings have rooted?
- Gently tug on the cutting. If it resists, roots have formed.
3. Can I propagate erysimum from root cuttings?
- Yes, but it is less successful than stem cuttings. Take root cuttings in early spring or fall.
