Photo by Melody

PlantFiles: Silver Dollar Prickly Pear, Dinner Plate Cactus
Opuntia robusta var. maxima

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Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Opuntia (op-UN-shee-a) (Info)
Species: robusta var. maxima

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Category:
Perennials
Shrubs
Trees
Cactus and Succulents

Height:
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Spacing:
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)

Hardiness:
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Sun to Partial Shade
Light Shade

Danger:
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
Pale Yellow
Bright Yellow

Bloom Time:
Mid Spring

Foliage:
Deciduous
Succulent

Other details:
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Non-patented

Propagation Methods:
From woody stem cuttings
From softwood cuttings
Allow cut surface to callous over before planting
From seed; direct sow after last frost

Seed Collecting:
Allow unblemished fruit to ripen; clean and dry seeds
Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds
Properly cleaned, seed can be successfully stored

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to view:

By Xenomorf
Thumbnail #1 of Opuntia robusta var. maxima by Xenomorf

By Xenomorf
Thumbnail #2 of Opuntia robusta var. maxima by Xenomorf

By Dlmcgrw
Thumbnail #3 of Opuntia robusta var. maxima by Dlmcgrw

By Dlmcgrw
Thumbnail #4 of Opuntia robusta var. maxima by Dlmcgrw

By shabbyaby
Thumbnail #5 of Opuntia robusta var. maxima by shabbyaby

No details have been posted.

Regional...

This plant has been said to grow in the following regions:

Green Valley, Arizona
Phoenix, Arizona
Scottsdale, Arizona (2 reports)
Tucson, Arizona
Colton, California
Valley Center, California



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