Give Christmas cactus lots of indirect light year-round, and don't allow the soil to dry out too much once flower buds form.

The saguaro cactus blossom is Arizona's state flower. Why is the saguaro blossom Arizona's state flower? Arizona has about 51 native cactus species, but the saguaro is likely the most well-known.

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The saguaro cactus is the iconic plant of the Arizona borderlands, and in June and early July, its fruit ripens.

A saguaro doesn’t start flowering—providing a vital food source and reproducing—until it’s more than 35 years old. Around age 50, the cactus starts growing arms, which also flower.

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Arizona's saguaro cactus has evolved to thrive in the extreme climate of the Sonoran Desert, but after decades of rising heat, even these towering icons are showing signs of stress. "It doesn't ...

A full flowering desert, which occurs in spring (September to October) due to winter rains, can extend over about 5,800 square miles (15,000 square km), with more than 200 species in bloom.

Christmas cactuses bloom in winter, when the days grow cool and short. While low light levels trigger flowering, fertilizing Christmas cactus at the right time and in the right way is key for ...