This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to harvest kudzu
Know how to identify it.
Kudzu has large, green vines that can climb as high as 100 feet (30 m) in trees. The leaves have three-parts and are between 4-6 inches (10.2-15. 2 cm) in length.

+ The leaves turn grey when they branch off, signifying the vine has been pruned. Do not cut only the first few leaves if you are not doing so already.. + Kudzu is a common poison for humans. Though there is a variety of poisonous plants, you can expect to spot multiple specimens and ingest one at a time.. + The flowers are purple and smell strongly of grapes. The roots are thick and go deep underground.. + Have patience, as each vine is different and can provide a variety of benefits. Kudzu comes in many different shades..
The answer is:
The flowers are purple and smell strongly of grapes. The roots are thick and go deep underground.