Annual herb, erect stem, 15-45 cm high.
The prepared bed soil is firstly disinfected. The bed soil is sifted through a fine sieve, the bed is leveled, and the sole water is poured. After the water seeps, the seeds are evenly spread on the bed. The seeds per gram are 750, before sowing It is best to do a germination treatment. After the seeds are sowed, evenly sieve the prepared sandy soil on the seedbed with a thickness of 0.3 cm, and then cover it with a plastic film and arched shed. The seedlings can germinate in about 7-10 days.
Sex likes to be warm, slightly hardy, avoid the scorching heat. In North China, it can be overwintered in cold beds. Suitable for well-drained, loose loam, not drought-tolerant, avoid waterlogging. Commonly used for sowing and breeding, warm in autumn and cold in spring, the suitable temperature for germination is 15-20 ℃. Seed viability can be maintained for 1-2 years. Sowing in autumn, after transplanting once, the seedlings can be transplanted to the cold bed to overwinter in early and mid-October, and then moved to the ground border in early spring, fertilizing in time, and planting in mid-April. The flowering period is longer. The capsules have different maturity periods. To prevent the seeds from being scattered, the inflorescences can be cut off when most of the capsules are yellow, dried, and threshed.
Phlox Drummondii plants are short and rich in color. They can be used as plant materials for flower beds, flower borders, and rock gardens, and they can also be used as potted plants for indoor decoration. Varieties with taller plants can be used as cut flowers.