Echinocereus rigidissimus
TAXONOMY
FamilyCactaceae
GenusEchinocereus
Zone9
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Plants of the World OnlineABOUT
Echinocereus rigidissimus, commonly known as the Rainbow Cactus or Arizona Rainbow Hedgehog, is a small, cylindrical cactus native to the southwestern United States and northern Mexico. It thrives in desert or dry shrubland climates and is known for its vibrant, colorful spines and large, showy flowers. This succulent subshrub enters a dormancy period during the winter months.
ALSO KNOWN AS
Rainbow Cactus
Cereus pectinatus var. rigidissimus
Echinocereus dasyacanthus var. rigidissimus
Echinocereus pectinatus var. rigidissimus
Echinocereus rigidispinus
Echinocereus rigidissimus
Echinocereus rigidissimus var. rigidissimus
OVERVIEW
VPDCalculate
WaterVery Dry
SoilSandy
LightDirect Bright (8 Hours)
Temperature25° C
Humidity30%
Dormancy3 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
To care for Echinocereus rigidissimus, provide it with plenty of direct sunlight and maintain moderate temperatures. Water sparingly, allowing the soil to dry out completely between waterings. This cactus prefers low humidity and can tolerate dry conditions well.Soil
Echinocereus rigidissimus prefers sandy soil with excellent drainage. A cactus or succulent mix is ideal, and adding perlite or coarse sand can improve drainage. Avoid using heavy or clay soils that retain moisture.Fertilizer
Fertilize Echinocereus rigidissimus with a balanced cactus fertilizer, such as 5-10-10, during the growing season. Apply the fertilizer sparingly, about once a month, and avoid fertilizing during the dormancy period.Repotting
Repot Echinocereus rigidissimus every 2-3 years or when it outgrows its current pot. Choose a slightly larger pot with good drainage, and handle the cactus carefully to avoid damaging its spines. Repot during the growing season for best results.Propagation
Propagate Echinocereus rigidissimus through seeds or offsets. Sow seeds in a well-draining cactus mix and keep them warm and lightly moist until they germinate. Offsets can be removed and planted in their own pots once they have developed roots.Pruning
Pruning is generally not required for Echinocereus rigidissimus. However, you can remove any dead or damaged parts of the plant to maintain its appearance and health.Toxicity
Echinocereus rigidissimus is not known to be toxic to pets or humans. However, its spines can cause physical injury, so handle the plant with care.REVOLUTIONIZE YOUR PLANT CARE
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