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Prickly Pear – Giant

Opuntia robusta

Giant Prickly Pear
Cactus & Succulents

A big, bold prickly pear from Mexico with thick, round blue-gray pads that can grow as large as a dinner plate. It is very drought tolerant and builds into a dramatic, sculptural mass that holds its own in a large desert garden.

Large
Full sunpreferred
Ask a designer about it
Mature sizeCan reach 10–15′ tall and nearly as wide in time
Growth rateModerate
Water useLow
SunFull sun
BloomBright yellow along the pad edges, late spring
Cold hardinessAbout 20°F
FoliageThick, round blue-gray pads, up to about 16″ across
FruitRed-purple and barrel-shaped; ripens in summer and hangs on

Living with it in the Phoenix Valley

Watering

Follow the cactus guidance in our Landscape Care guide, which means watering by hand only when the plant needs it. Established plants need very little. Too much water makes heavy, soft pads that can snap under their own weight.

Pruning

Remove a few pads now and then to keep the plant balanced. Heavy, lopsided growth can break or topple, especially in monsoon storms. Use tongs and thick gloves.

Spines

Spininess varies from plant to plant. All have glochids, so handle it with care.

How our designers use it

Bold sculpture

Its huge round pads read as sculpture, so our designers give it a stage: against a plain wall, in gravel or at the end of a view.

Large-scale gardens

It fills space in big desert landscapes and slopes where a small cactus would be lost.

Blue contrast

The blue-gray pads pair well with red yucca, globe mallow and other warm-colored plants.

Good to know

Around the pool

Spines, glochids and dropped fruit all argue against planting it near a pool deck or path. Give it plenty of room so you are not pruning it back from walkways.

Pairs well with

Similar plants

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Picturing one in your yard?

Our designers can show you where it will thrive, what to plant beneath it and how it fits the rest of your landscape.

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