Is late summer suitable for starting propagation?
Written by
Julia Anderson
Reviewed by
Prof. Charles Hartman, Ph.D.Propagation of succulents is well-timed in much of the country late in the summer season. The warm soil temperatures accelerate root development, avoiding the unpredictable weather that often accompanies the spring season. This season is scheduled for the major propagation project, yielding results that are obtained approximately 20% faster than those obtained in winter. The key is to adjust the care of the plants to accommodate the heat waves and humidity fluctuations during this season.
Heat Management
- Shading solutions: Use 30% shade cloth during peak afternoon hours
- Location rotation: Move trays to east-facing areas avoiding direct sun
- Surface cooling: Place propagation trays on ceramic tiles absorbing heat
Humidity Control
- Ventilation systems: Run oscillating fans during high humidity periods
- Watering reduction: Decrease misting frequency by 40% in muggy conditions
- Anti-fungal measures: Add cinnamon powder to soil preventing mold growth
Timeline Optimization
- Early establishment: Start by mid-August ensuring roots before cool nights
- Light extension: Supplement with 2 extra hours of morning light
- Temperature monitoring: Track nightly lows moving trays indoors below 60°F
Combat brutal heat using shade strategic techniques. Propagation trays will be placed under the patio cover during the peak hours of 11:00 a.m. to 3:00 p.m. White reflective surfaces, located over the trays, will decrease the temperature by 10°F. This procedure will avoid leaf scorch on the new seedlings while maintaining good light levels.
Water accurately according to humidity. I mist every five days rather than every three in humid places. Test the soil moisture with your knuckles; water only when the soil feels dry to the touch at the depth of your first finger joint. According to my propagation diary, the water requirement in humid places is 40 percent less than in arid regions.
Plan for fall readiness by documenting growth schedules. Roots should be completed in 3 weeks if plants are grown for a September planting, and I favor rapid-growing materials for late summer planting, such as Sedum. The slow-growing plants must have an indoor grow light setup when the nighttime temperature drops below 60 ° F.
Utilize seasonal advantages, such as natural heat and extended daylight hours. Propagating in late summer eliminates heating costs during the winter. It reduces the risk of fungal diseases common in the spring season. The healthiest specimens I have ever grown are those that were started in August, where they received consistent conditions before the changes in fall weather.
Read the full article: 7 Steps for Succulent Leaf Propagation Success
