Plant landscape architect uses (3)

I believe the answer is:

pea

I'm a little stuck... Click here to teach me more about this clue!

'plant' is the definition.
(pea is a kind of plant)

'landscape architect uses' is the wordplay.
'PEA' is hidden in amongst the letters.
But, I'm not sure how this is indicated.

Can you help me to learn more?

(Other definitions for pea that I've seen before include "veg" , "food item" , "12 in a pod" , "Leguminous vegetable" , "Edible green seed" .)

I've seen this clue in The Sun.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.