As the National Gardening Association notes, ranunculus flowers are perfectly suited to the mild winters of Texas. The flowers grow best in hardiness zones 8 to 11, which means they can be planted successfully throughout Texas. Ranunculus grows from bulbs; spring-planted bulbs will bloom in June or July, while fall-planted bulbs blossom in March.
Choose a location that will offer your ranunculus full sun and well-draining soil. Texans can plant ranunculus in garden beds or in containers.
Dig holes 2 inches deep for the ranunculus bulbs, and 4 to 6 inches apart.
Insert the bulbs into the hole. Ranunculus bulbs resemble bunched bananas. Place the bulb in the hole so that the bananas hang down and the handle points up. Cover over all bulbs with soil.
Soak the area with water until the ground is fully saturated.
Scatter mulch over the planted bulbs. As long as the soil remains moist to the touch, you do not need to water until the bulbs have germinated, within 15 to 20 days according to the National Gardening Association.
Keep ranunclus flowers moist as they develop, watering when the soil grows out. Pick flowers to encourage the plant's continued growth.