Cosmidium is a colorful, half-hardy annual that is native to Texas. It is a prolific bloomer, putting forth flowers that are a rich mahogany edged with gold-yellow. It can reach up to 20 inches in height.

Cosmidium can be started either directly outdoors once frost danger has passed, or indoors 6-8 weeks before the end of frost season.

Cosmidium grows in both full sun and partial shade, and should be planted in moderately fertile soil that drains well.

• If starting indoors for a jump on the growing season, sow seeds into trays or small pots filled with a seed starter mix.
• If sowing directly outdoors, first prepare a seedbed by removing weeds and breaking up soil.
• Surface sow 2-3 seeds per plant, raking them in and pressing into the soil.
• Keep seeds moist and at a temperature of 60F+ degrees. Under proper conditions, these seeds should germinate in 1-2 weeks.
• Once indoor seedlings are established, thin to the strongest seedling and transplant outdoors spaced 1-2 feet apart.
• Before transplanting seedlings into the garden, it's essential to "harden them off". This involves acclimating young plants to outdoor conditions by placing them in a sheltered outdoor area for about a week. Initially, shield them from strong winds and direct sunlight. If there's a risk of frost overnight, either cover the plants or bring them indoors, then return them outside in the morning. This hardening off method helps strengthen the plant's cell structure, minimizing transplant shock and sun damage.

• Keep weeds under control during the growing season. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their seeds from germinating.
• Mulches play a vital role in preserving soil moisture and ensuring consistent soil temperatures. When it comes to annuals, using organic mulch made from shredded leaves not only enhances the appearance of the bed but also enriches the soil as it decomposes over time. Remember to keep mulch away from the plant stems to avoid potential rot issues.
• Cosmidium is a resilient plant, and only needs to be watered during periods of drought.
• Overfertilization will result in reduced blooming, but you can apply a light application of balanced fertilizer in the growing season if desired.
• Deadhead spent blooms to encourage further flowering.