Prickly-pear Cactus

Opuntia spp.
Español: Olmo
These species are, in combination, found throughout Florida and from a cultivation perspective, are very similar.  In nature, O. stricta tends to be in more coastal areas.

Rarely grown but worthy of consideration in hot dry locations where the thorns are not an issue or are an asset.

These cacti are attacked by the cactus moth, Cactoblastis cactorum, which arrived in Florida in 1989, and this invasive species has become a serious threat to the diversity and abundance of Opuntia cacti in North America. If it become a problem on an Opuntia used in landscaping, it is best treated by manual removal as insecticides can also kill native butterflies and pollinators.

O. stricta is invasive in many warmer parts of the world including Australia, parts of Africa, and parts of Eurasia.



Makes an interesting wildflower. Can be used as a low-growing hedge in hot, dry locations.

Tolerance

Tolerant of occasional/brief inundation such as can occur in storm surges.



Moderate. Tolerant of salty wind and may get some salt spray. Exposure to salt spray would be uncommon (major storms).

Considertions

Thorns! The thorns on this plant make weeding around it difficult. Best planted where no one will be walking adjacent to the plant.

Habitat

Coastal dunes, coastal grasslands.

Did You Know?

  • Showy flowers, Showy fruits, Interesting foliage, Thorns
  • Nectar plant for Meske's skipper (Hesperia meskei) butterflies.
  • Attracts a variety of insect pollinators.
  • Bees documented visiting Opuntia humifusa include Agapostemon splendens, Augochlorella aurata, Augochloropsis sumptuosa, Dialictus nymphalis, D. tegularis, Halictus ligatus, Dianthidium floridiense, Lithurgus gibbosus, Megachile brevis pseudobrevis, M. policaris, M. texana, Melissodes communis, Apis mellifera, Bombus impatiens, B. pennsylvanicus and Xylocopa virginica krombeini (Deyrup et al. 2002).