Blue Daze (Evolvulus glomeratus) is a low-growing plant cherished for its vibrant sky-blue flowers and soft, silvery-green foliage. Its continuous blooms from late spring until the first frost make it a popular choice for consistent color. Propagating this plant from stem cuttings is a straightforward process, allowing you to expand your collection.
When to Propagate Blue Daze
The most effective time to propagate Blue Daze from stem cuttings is during late spring through midsummer. This period aligns with the plant’s active growth phase, when stems are pliable yet mature enough to readily root. Warm temperatures during these months also promote quicker root development. Avoid propagating during extreme heat or cold, as these conditions can stress the cuttings and hinder success.
Gathering Your Materials
Gather the following materials:
- Sterile pruning shears or a sharp knife for precise cuts.
- Small pots or propagation trays with drainage holes.
- A well-draining rooting medium, such as coarse sand, perlite, vermiculite, or a blend.
- Rooting hormone (optional, liquid or powder form) to encourage faster root development.
- A spray bottle and a clear plastic bag or humidity dome to maintain consistent moisture and humidity.
Step-by-Step Stem Cutting Propagation
Select healthy, non-flowering stems, approximately 4 to 6 inches long, that are flexible but not overly soft or woody. A good indicator of a suitable stem is one that snaps cleanly when bent sharply, rather than just bending. Avoid stems with flowers or buds, as the plant will prioritize blooming over rooting.
Make a clean cut just below a leaf node using sterile pruning shears or a knife. This is where new roots are most likely to emerge. Remove all leaves from the bottom half to two-thirds of the cutting to prevent rotting and fungal issues.
If you opt to use rooting hormone, dip the cut end of the prepared stem about 1 inch into the hormone powder or liquid, gently tapping off any excess. Create a small hole in your pre-moistened rooting medium using a pencil or a similar tool. This prevents the rooting hormone from being scraped off as you insert the cutting. Carefully insert each cutting into the prepared hole, ensuring that at least one node is buried beneath the surface.
Lightly firm the medium around the base of each cutting for support and good contact. If planting multiple cuttings, space them adequately to ensure air circulation. Mist the cuttings and the surrounding medium with water from a spray bottle. Then, cover the pot or tray with a clear plastic bag or a humidity dome, using stakes or straws to keep the plastic from touching the cuttings. Place the covered cuttings in bright, indirect light, avoiding direct sunlight which can scorch them.
Caring for Young Blue Daze Plants
Once Blue Daze cuttings have rooted, indicated by new leaf growth and gentle resistance when tugged, they are ready for the next stage of care. Rooting typically occurs within four to six weeks. Remove the plastic covering and transplant each rooted cutting into its own larger pot, typically 3 to 4 inches in diameter, filled with a standard, well-draining potting mix.
Water thoroughly when the top inch or two of soil feels dry to the touch, allowing excess water to drain away. Avoid letting plants sit in standing water, as Blue Daze is sensitive to overly wet conditions. Position newly potted Blue Daze in ample bright light, gradually acclimating them to full sun, which encourages robust growth and prolific flowering. Begin light fertilization about a month after transplanting, using a balanced liquid fertilizer at half strength monthly during the growing season.
Troubleshooting Common Propagation Issues
Some issues can arise during Blue Daze propagation. Wilting is a common problem, caused by either too much or too little water. Overwatering leads to root rot, where roots turn black and decay, while underwatering deprives the cutting of necessary moisture. Maintaining a consistently moist, but not soggy, rooting medium is important.
Fungal problems, such as mold or damping-off, can also occur due to excessive moisture and poor air circulation. Ensure adequate drainage and good airflow by spacing cuttings properly and lifting the humidity dome periodically. If cuttings fail to root, it may be due to immature or overly woody stem material, or insufficient humidity. Review cutting selection and ensure a consistently moist, humid environment to improve success.