Moraea polystachya, Peacock Flower, Butterfly Iris, Bloutulp, Kraai-uintjie (Afr.), 25-100 seeds

Moraea polystachya is a beautiful yet potentially harmful (to livestock) species! In favorable years, typically during autumn, the large iris-like flowers of this species bloom in stunning displays across the arid central region of southern Africa. These flowers range in color from deep blue to violet, and occasionally white.

Moraea polystachya is a perennial geophyte, with its leaves and aerial stems dying back to the substantial dark-coated corm during the dormancy period that follows flowering and seeding. The flowering stem reaches approximately 0.8 meters in height and is branched at the top. Although each flower only lasts for a single day, a succession of blooms allows the flowering season to extend over six to eight weeks.

The upright flowers are relatively typical for the genus, featuring an outer ring of three large, more or less spoon-shaped tepals and an inner ring of three smaller and narrower tepals. The outer tepals curve outward or downward from their widened bases. Flower colors vary from dark blue to violet (with hints of pink) to white with fine blue lines, and pure white. One or both rings of tepals have yellow to orange nectar guides at their bases.

Moraea polystachya is commonly found in central South Africa and Namibia, thriving in areas with average annual rainfall between 100 and 700 mm, which is likely much lower in an average year. It grows in well-drained flats and gentle slopes, with collectors often noting the presence of calcrete deposits. While light frost can occur, summer temperatures may frequently rise above 40º C when the plants are dormant.

Cultivating Moraea polystachya
Moraea polystachya is easy and rewarding to grow, but it can become weedy in cultivation, so it’s best to plant them in pots or a rockery for easy management. For the most visually appealing display, consider grouping the plants together.

Plant the corms at a depth of two to three times their diameter in well-drained soil. Water them lightly until they sprout, after which you can increase watering, but be careful not to overwater. Fertilization should be minimal, and the corms should be shielded from freezing temperatures during dormancy.

Propagating Moraea polystachya from seeds
Sow seeds in late summer or autumn; they germinate readily, and the same watering and fertilizing guidelines apply. Seedlings typically bloom in about three years.

Potential pests include red spider mites and aphids.