Desert zinnia (Zinnia acerosa)

Care, watering, light and tips for Desert zinnia on Floravia.

Desert zinnia

Quick facts

About Desert zinnia

Zinnia acerosa, commonly known as Desert Zinnia or Spiny Zinnia, is a small zinnia native to arid regions of North America. It is characterized by its delicate, bright yellow flowers with darker centers, appearing in summer and fall, and its fine, somewhat spiny foliage. It's an excellent choice for rock gardens, xeriscaping, and as a groundcover in dry climates, adding a wild, resilient touch.

Native range

Southwestern United States and northern Mexico.

Care tips

This Zinnia thrives in full sun and requires very well-drained soil; sandy or rocky soils are ideal. It is extremely drought-tolerant once established, so watering should be minimal or none, only during prolonged dry spells. Avoid overwatering at all costs, as it is its main enemy and can lead to root rot. Fertilization is not needed.

How to save a dying Desert zinnia

Warning signs
Yellowing or wilting leaves, soft stems, no blooms.
First aid
Check drainage, reduce watering, move to full sun.
What kills it
Overwatering and lack of direct sunlight. They thrive in dry areas.
Can it be saved?
Yes, if you quickly correct watering and sun exposure.

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