How to propagate Phlox

Phlox division propagation

The division of Phlox is very simple and suitable for home propagation. Division is usually carried out in early spring or autumn.

The roots of Phlox have a particularly strong ability to produce buds, and side buds often appear during the growth process. Dig out the sprouts around the mother plant and plant them, trying to ensure the complete root system to increase the survival rate.

Phlox sowing propagation

Phlox is commonly propagated by sowing, sowing in autumn in warm areas and in spring in cold areas. The suitable temperature for germination is 15-20℃.

Seed viability can be maintained for 1-2 years. Sow in autumn, and after the seedlings are transplanted once, they should overwinter in a relatively low temperature environment. Do not move them out of the house too early in early spring. Add appropriate fertilizers and they will grow normally in April!

Want to know more? Learn how to sow Phlox

Phlox cutting propagation

Root cuttings: Carry out in spring and autumn, combined with division and planting, cut some roots into small sections about 30 cm long, bury them flat in plain sand, keep the soil moist at 15 to 20 degrees, and new shoots will grow in about 30 days.

Stem cuttings: carried out in spring, summer and autumn, usually after flowering. Stem cuttings are suitable for mass production. Combined with pruning and topping, take branches with full growth, cut 3 to 5 cm long cuttings, insert them into clean sterile sand, with a spacing of 2 to 3 cm between rows and plants. Just keep the soil moist and roots will take shape in about 30 days. In summer, remember to spray 800 to 1000 times 50% carbendazim solution 1 to 2 times to prevent the cuttings from rotting.

Leaf cuttings: In the summer, take leaves with axillary buds (keep about 1/2 of the leaves) and 2 cm long stems, insert them into clean sterile sand, pay attention to shade, and keep the soil moist. It will take about 30 days for roots to grow. The operation is relatively complicated and the survival rate is low.

Phlox layering propagation

Bend the lower part of the one- or two-year-old branches close to the ground and bury them in the soil, leaving the upper end of the branches exposed above the ground. When layering, scratch the bark of some branches buried in the soil in advance (to release nutrients and facilitate rooting). After taking root in about 30 days, they can be separated from the mother plant and planted.