Answer:
1. MOST LIKELY A CACTUS (specified Saguaro) or bromeliad Puya raimondii
2. Bamboo
Step-by-step explanation:
1: The slowest-flowering plant is the rare species of giant bromeliad Puya raimondii, discovered at a height of 3,960 m (12,992 ft) in the Bolivian mountains in 1870. The flower cluster emerges after about 80-150 years of the plant's life (it produces an immense vertical stalk or panicle bearing numerous flowers).
1: In general, cactus plants are the slowest growing plants on earth. One kind of cactus, the saguaro, grows just one inch in the first ten years of its life.
2: The world record for the fastest growing plant belongs to certain species of the 45 genera of bamboo, which have been found to grow at up to 91 cm (35 in) per day or at a rate of 0.00003 km/h (0.00002 mph). According to the RHS Dictionary of Gardening, there are approximately 1,000 species of bamboos.