In the game "Grow a Garden" on Roblox, a "prickly plant" refers to plant types that have spiked or spiny surfaces. These prickly plants are a category of plants in the game characterized by their thorny or prickly textures. Some examples of prickly plants available in Grow a Garden include:

• Cactus: A common prickly fruit plant known for growing in deserts with needle-like protrusions.
• Dragon Fruit: A mythical prickly plant that produces fruit repeatedly.
• Pineapple: Another mythical prickly plant available in the game.
• Prickly Pear: Resembles the real-life opuntia cactus.

These prickly fruits are considered valuable in the game and have specific gameplay effects, especially when paired with pets like Hedgehogs that increase the size of prickly fruits. If you meant prickly plants for a real garden (not in the game), they generally refer to plants with thorns or spines, such as firethorn, black locust, hawthorn, blackthorn, and various cacti. These plants can serve as natural barriers or ornamental plants with unique textures but should be handled carefully due to their sharp thorns. Please let me know if you want details on prickly plants for a real garden or more about the prickly plants in Grow a Garden game.