Up to 26 feet tall, this fiercely spined cactus flaunts new growth that's a beautiful bluish-green before maturing to gray-green. Fragrant white blossoms, 6 inches wide, open at night.

Any plant with fleshy stems or leaves is called a succulent. Aside from cacti, only a few other plant families have succulent members. All these succulents, cactus or not, are low-maintenance.

Is it pretty? Let’s describe the plant some more: We already have that fleshy, green bulb pushing its way up and out of the soil. Mine is about 3 inches across, but over time a bulb can grow to ...

Succulents — those low-maintenance, thick-leaved cactus cousins (and cacti themselves) can have some stunning flowers. Succulents (a group which includes all our favorite cacti) come in all ...