Doellingeria umbellata, commonly known as Flat-topped Aster or Parasol Whitetop, is a perennial herb native to North America. It typically grows in moist meadows, along stream banks, and in open woods. The plant produces clusters of small white flowers and has a long blooming period from late summer to fall. It undergoes a dormancy period during the winter months.
Doellingeria umbellata thrives in temperate climates with moderate temperatures. It prefers bright, indirect light and should be watered regularly to keep the soil evenly moist. The plant benefits from moderate humidity levels and should be protected from extreme temperatures.
Soil
This plant prefers well-draining loamy soil that retains moisture without becoming waterlogged. A soil mix that includes organic matter will help provide the necessary nutrients and drainage. Ensure the soil pH is slightly acidic to neutral.
Fertilizer
Use a balanced fertilizer with an N-P-K ratio of 10-10-10 during the growing season. Fertilize every 4-6 weeks to support healthy growth and flowering. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of flowers.
Repotting
Repot Doellingeria umbellata every 2-3 years or when the plant outgrows its container. Choose a slightly larger pot with good drainage. Gently remove the plant from its current pot, loosen the roots, and place it in the new pot with fresh soil. Water thoroughly after repotting.
Propagation
Propagate Doellingeria umbellata by division in early spring or by seed. For division, carefully separate the plant into smaller sections, each with roots and shoots, and replant them. For seed propagation, sow seeds in a well-draining seed mix and keep them moist until germination.
Pruning
Prune the plant in late winter or early spring to remove dead or damaged stems and to encourage new growth. Regular pruning helps maintain the plant's shape and promotes a more vigorous blooming season.
Toxicity
Doellingeria umbellata is not known to be toxic to pets or humans. However, it is always advisable to keep plants out of reach of pets and children to prevent any accidental ingestion.
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