Gomphrena are slow growers and they may take some time to set true leaves. Keep seedlings under lights until they have at least two sets of true leaves. Then, begin hardening off before transplanting, or pot them on to continue growing until outdoor temperatures are consistently warm. Gomphrena prefer well-draining soil with consistent moisture, but will tolerate a dry spell. They perform best in full sun, but can tolerate partial shade. Pinch back young plants when they are around 15cm (6") tall to encourage a bushier habit. Some taller varieties may need support to prevent them from falling over. Deadheading is not necessary, but can cutting flowers regularly may result in more blooms.
Seed Info
Usual seed life: 2 years.